Commit Graph

137 Commits

Author SHA1 Message Date
Wanjohi
355d1492d9 fix(auth): give a sign-in code a budget of guesses and a short life
A six-digit code has a million values, and nothing was counting how many
of them a caller tried. The code travelled in an encrypted cookie the
caller held, verification compared against that cookie, and a wrong
answer simply re-rendered the form. Nobody has to be the person the code
was mailed to: type somebody else's address into the first screen and the
code goes to their mailbox while the cookie stays with you. At that point
the only thing between a stranger and an account is a million requests,
and the constant-time comparison protecting the code was guarding a door
you could just keep knocking on.

Guesses are now counted on the server, under a name that changes with
every code. That placement is the point: a counter kept beside the code,
in the cookie, is a counter the guesser can wind back by replaying an
older copy. Starting over is still allowed and still costs a fresh code
sent to the mailbox being aimed at, which is where somebody notices. A
correct code spends its record too, so its remaining guesses do not carry
into the next one.

The cookie also lived for twenty-four hours, which made the pin a
password with a million possible values and a day to try them. Ten
minutes now, and the code stops being accepted when the clock says so
rather than when the cookie happens to go away.

Resend had no limit either, so the button was a way to mail a stranger as
fast as requests go out. Codes to one address are spaced, and one attempt
at signing in can only ask for so many.

Both refusals say the same thing on purpose. Which of the two it was is a
fact about somebody else's mailbox.
2026-09-05 09:44:32 +03:00
Wanjohi
36179150a1 fix(auth): make a device sign-in an answer somebody gave
Anybody could ask for a device code and be handed a link with the user
code already in it. Following that link started a sign-in, and finishing
the sign-in approved the grant. So sending somebody the link was enough:
they saw an ordinary sign-in prompt, completed it, and whoever kept the
device code polled and collected their access and refresh tokens. The
victim never saw a question, because there was not one.

There is now. Signing in says who the browser belongs to; it does not say
the person meant to hand an account to a program somewhere else. Those
are two questions and only the second authorizes anything, so the flow
ends at a page that names the program, shows the code back so it can be
compared with what the device is displaying, and offers Approve and Deny.
Approving is a POST carrying a value from the cookie, so another site
cannot submit it on somebody's behalf. Denial moved onto the same page:
it used to be a GET anyone could fire, which meant a link scanner could
cancel a real sign-in and a stranger with a user code could grief one.

Three more things that were wrong underneath.

The grant was read, modified and written back as a whole record. A poll
that read a pending grant and then wrote its bookkeeping erased an
approval that landed in between, and the client polled a dead grant until
it expired. Grants moved to a table, where approving is one conditional
update and redeeming is one delete that returns what it deleted, so
neither party can undo the other and two polls cannot both be served.

Tokens were minted when the person clicked and left sitting in storage
until collected. They are minted at redemption now, so the lifetime the
client is told about starts when it receives them, and a grant nobody
collects leaves no usable refresh token behind.

The client identifier was never checked, at either end. It is validated
when the grant is created and has to match when the code is redeemed —
without that, a leaked code is redeemable by anyone, and the identifier
the token carries is whatever the last caller claimed. The device code
is also stored as a hash now, since it is the credential the tokens are
handed to.

The store is an interface because the issuer cannot reach the database,
and because the guarantees are the point: every method is one operation,
and no caller reads a grant, decides, and writes it back.
2026-09-05 09:40:03 +03:00
Wanjohi
2c4e9d9b0b fix(auth): refuse to send a sign-in code rather than log one
The rule was "throw when the environment says production, otherwise log
the code and carry on". The deployment sets no such marker, so the
branch that ran was the developer one: every recipient and every usable
sign-in code printed to a retained log, the screen reporting success,
and nobody receiving anything.

That is what a fail-open default costs. The deployment that forgets its
mail settings is exactly the deployment with no marker saying it is a
real one, so it takes the lenient branch precisely when it should not.

Turned around: printing a live code is asked for by name and anything
else is an error, so absence of configuration is a refusal instead of an
assumption. Two settings out of three is also an error now, because it
means somebody is halfway through wiring a provider up and a quiet
fallback would hide the missing half.

Stages anyone else can reach are checked at deploy time, so a missing
setting stops the deploy with the name of the variable it wanted rather
than surfacing later as a person waiting for mail that never comes.
2026-09-05 09:27:49 +03:00
Wanjohi
affe1e3c73 refactor(auth): serve one provider, and make it the email one
Signing in with a gaming account or with an SSH key could both bring a
user into existence. That makes an account only as recoverable as the
thing that created it, and gives one person as many accounts as they
have gaming logins — neither of which is what an account is supposed to
be now that verifying an address is what creates one.

Both are unwired rather than deleted. The provider implementations stay
where they are, because connecting a gaming account is still something
this product does; it just does it from the API, against a user who
already exists, which is a connection hanging off an identity rather
than an identity of its own.

The worker test followed: it exercised the two flows that are gone, and
now covers the one that is left plus an assertion that the other two are
not routed, so they cannot come back quietly.
2026-09-05 09:27:38 +03:00
Wanjohi
96b0cf8111 feat(auth): sign in with an email address
Wires the pin-code provider, which existed and was never reachable, and makes
it the only branch that can create an account. Steam now resolves an existing
connection instead of minting a user from a persona, and refuses when there is
no account behind it — which is an answer the interface renders rather than an
implicit signup.

Delivery is a small provider-neutral POST rather than a vendor SDK: configure
an endpoint, a key and a from address. With none of them set it logs the code
outside production so a local sign-in works, and throws in production, because
a screen that says "check your email" when nothing was sent leaves someone
waiting instead of telling anybody.

A person who has only ever signed in by email has no connected account, and
the token says so with an empty value — the same one a server-to-server caller
has always carried.
2026-09-05 00:02:16 +03:00
Wanjohi
ecebc528ae feat(api): the session endpoint, and a claim that only one caller can win (#317)
## What this is

`POST /session`, `GET /session/:id`, and the three endpoints the host
agent
calls: `GET /machine/jobs`, `POST /session/:id/state`, `POST
/session/:id/ticket`.
Core had `Session` and `Box` and no HTTP surface at all; this adds the
surface
and the two things core was missing to support it safely.

### The access rule

An agent may only see or touch a run whose box is placed on its own
hardware,
and that is a `where` clause on all three agent endpoints — not a check
sitting
next to the query, and not the agent asking politely for its own work.
Host
credentials are long-lived secrets on hardware in somebody's living
room, so
the blast radius of one leaking is decided by the join and nowhere else.

`Session.listJobsForMachine`, `forMachine`, `compareAndSetState` and
`publishTicket` all scope to the machine inside the statement. The
compare-and-set is scoped there too, and not only by the read above it:
a
caller checking first and the write being scoped are different
properties, and
only one of them survives somebody adding a second caller.

"No such run" and "not your run" are the same 403 with the same body, so
reporting states at ids cannot be used to discover which ids exist.

### The claim

`Session.setState` updated on the id alone. Two agents polling the same
run
both succeeded and both started the same box. There is one host today,
which
is exactly why that would have been built wrong and stayed wrong.

`Session.compareAndSetState` puts the state being moved *out of* into
the
`where` clause, so the database picks the winner and the loser matches
zero
rows. `Session.transition` layers the classification on top and returns
one of
five outcomes, which the route maps:

| Case | Answer |
|---|---|
| same host re-reports a state it already reported | `200`, nothing
changes |
| a different host reports anything | `403` |
| a transition not in the table | `409`, row does not move |
| a legal transition something else won first | `409` |
| it happened | `200` |

`setState` is left exactly as it was — it is the unscoped primitive the
core
tests already pin, and the new path is additive.

### Placement

`POST /session` makes no placement decision. A box names its hardware,
so a
run inherits it by join, and the request body is `.strict()` so that
naming a
machine there is a validation error rather than a field quietly ignored.

The interface went where boxes are actually placed: `Placement.Placer`
in
`packages/core/src/box/placement.ts`, with `Placement.onlyHost` as the
implementation and `Box.createPlaced` as the one caller. A real
scheduler
replaces that file and nothing else.

## The test failing first

Tests were written and run against unmodified code. Verbatim, trimmed to
the
result lines (the full log is stack traces for the same failures):

```
(fail) POST /session > a request creates the job, in the envelope both ends read [199.00ms]
(fail) POST /session > creating a session makes no placement decision [55.00ms]
(fail) POST /session > a box somebody else owns is not there to run [106.00ms]
(fail) POST /session > a box already running refuses a second run rather than picking one [51.00ms]
(fail) POST /session > you can only play as an account you have linked [85.00ms]
(fail) POST /session > a host cannot ask for a session on its owner’s behalf [54.00ms]
(fail) POST /session > requesting a session requires a signed-in person [1.00ms]
(fail) GET /session/:id > the owner reads their own run, ticket and all [47.00ms]
(fail) GET /session/:id > somebody else’s run is not visible, and neither is its absence [97.00ms]
(fail) GET /session/:id > reading a run requires a signed-in person [1.00ms]
(fail) GET /machine/jobs > a host is handed the work for its own boxes, with the kind on the wire [50.00ms]
(fail) GET /machine/jobs > a host never sees work for a box on other hardware [84.00ms]
(fail) GET /machine/jobs > bad credentials are indistinguishable from none [41.00ms]
(fail) GET /machine/jobs > a person cannot poll for jobs [44.00ms]
(fail) POST /session/:id/state > the claim moves the row, and the job stops being offered [41.00ms]
(fail) POST /session/:id/state > the same host re-reporting a state it already reported is fine [54.00ms]
(fail) POST /session/:id/state > a different host reporting anything is refused, and learns nothing [99.00ms]
(fail) POST /session/:id/state > a transition that is not allowed is a conflict, and the row stays put [47.00ms]
(fail) POST /session/:id/state > a stopped run cannot be started again [47.00ms]
(fail) POST /session/:id/state > a duplicate live report does not extend a run somebody is billed for [44.00ms]
(fail) POST /session/:id/state > a state nobody defined is a validation error, not a conflict [49.00ms]
(fail) POST /session/:id/state > a person cannot report a state on their own session [48.00ms]
(fail) POST /session/:id/ticket > a later ticket replaces the first, because it is a better address [44.00ms]
(fail) POST /session/:id/ticket > a different host cannot publish an address for someone else’s run [75.00ms]
(fail) POST /session/:id/ticket > a stopped run has no address to publish [48.00ms]
(fail) POST /session/:id/ticket > a ticket has to say something [47.00ms]
(fail) Session routes in the spec > every path a caller needs is documented [48.00ms]
error: Cannot find module './placement.js' from '/home/…/packages/core/src/box/placement.test.ts'
(fail) Session jobs > a requested session is the job, and it carries its kind [37.00ms]
(fail) Session jobs > a job belongs to the machine its box is placed on and to no other [71.00ms]
(fail) Session jobs > only a requested session is work; a claimed one is not offered again [34.00ms]
(fail) Session claim > the claim is a compare-and-set, so the second attempt finds nothing to move [37.00ms]
(fail) Session claim > a machine that is not the box’s host cannot move the row [72.00ms]
(fail) Session claim > a session that does not exist is refused the same way as one that is not yours [31.00ms]
(fail) Session claim > re-reporting the state you already reported changes nothing [37.00ms]
(fail) Session claim > a transition off the table is refused and the row does not move [36.00ms]
(fail) Session claim > the timestamps survive a duplicate report, which is what billing rests on [33.00ms]
(fail) Session claim > publishing a ticket is scoped to the host too [73.00ms]
(fail) Session claim > a stopped session has no address to publish [36.00ms]
 7 pass
 39 fail
 1 error
Ran 46 tests across 3 files. [2.88s]
```

(46 rather than 49 because the three `Placement` tests never ran — the
module
they import did not exist.)

## And passing after

```
 49 pass
 0 fail
 126 expect() calls
Ran 49 tests across 3 files. [3.72s]
```

Full suite, against a fresh migrated database on `DATABASE_URL` and
`TEST_DATABASE_URL`:

```
 181 pass
 0 fail
 479 expect() calls
Ran 181 tests across 16 files. [7.89s]
```

Baseline before this branch was `138 pass, 0 fail, 371 expect() calls`
across
14 files, so 43 tests and 108 assertions are new and nothing regressed.

`tsc --noEmit -p apps/api` reports the same five pre-existing errors in
`app/utils/hook.ts` and `app/utils/validator.ts` as it does on `dev`,
and none
in the files this branch adds.

## Shared files touched

- `apps/api/app/index.ts` — three lines: one import, and two mounts
  (`/session`, plus `SessionApi.machineRoute` at `/machine`).
- `packages/core/src/box/index.ts` — one import and `Box.createPlaced`
added.
  Nothing existing changed.
- `packages/core/src/session/session.test.ts` — `scene()` now also
returns
  `machineId`; two new `describe` blocks appended.
- `packages/core/src/examples.ts` was **not** touched; the job schema's
  examples reuse the existing `Examples.Session`, `Examples.Box` and
  `Examples.Game` values.

No migration was created and none was needed.

## Judgement calls

1. **`GET /machine/jobs` lives in `session.ts`, mounted at `/machine`.**
The
path belongs under the prefix a host already uses for everything it asks
about itself, but the handler is this lane's code, so it is a second
Hono
instance (`SessionApi.machineRoute`) rather than an edit to
`machine.ts`.
2. **A job's payload beyond `kind` was not specified anywhere**, so it
is:
   `kind`, `sessionId`, `boxId`, `boxTier`, `gameId`, `steamAppId`,
`linkedAccountId`. `steamAppId` is in there because the agent launches
by
store id and not by our internal one, and `boxTier` because the tier
also
   sets output geometry. **This is the most likely place for the two
   implementations to disagree** — see the disagreement note below.
3. **A run's terminal states refuse a ticket** (`409`). Nothing said
what
publishing an address for a stopped run should do; writing one can only
   mislead a client that is still polling.
4. **A state report accepts only `starting`, `live`, `ended`,
`failed`.**
`requested` is written once, at creation, so reporting it is a `400`
rather
   than a no-op.
5. **A box already running refuses a second run** with `409`. Not stated
in so
many words, but `Session.activeForBox` documents itself as the query
that
should start refusing rather than picking a winner silently, and this is
the
   caller that would otherwise have made it pick.
6. **`Placement.onlyHost` refuses when there is more than one
candidate**
rather than taking the first row. Picking would be a scheduling policy
invented by accident and impossible to find later. It also refuses when
there are none, because `box.machineId` is not nullable and a placer
that
   cannot answer must say so.
7. **`POST /session` returns `201`**, and its body is `.strict()`.
8. **Person-facing 404s, agent-facing 403s.** Both are the settled shape
for
their realm and both are asserted identical between "does not exist" and
   "not yours".
9. **`POST /session` accepts an explicit `linkedAccountId`**, defaulting
to the
one the caller's session carries. A personal access token carries none,
so
requiring the session to supply it would make that credential unable to
start a run; the account is verified to belong to the caller either way.

## Where the specification was ambiguous or came out wrong

- **The lost-claim 409 is not reachable through the HTTP endpoint as
specified.** A box names exactly one machine, so both racers for a given
run
authenticate as *the same* machine — and the same machine re-reporting a
state it already reported is specified as `200`. Which of the two
answers a
caller gets therefore depends only on whether its read happened before
or
after the winner's write: concurrent gets `409`, a sequential retry gets
`200`. That is a defensible reading and it is what is implemented, but
it
means the two rules are distinguished by timing and not by anything a
caller
can see. If a second agent process per host is ever real, this needs a
claim
  token in the request rather than a timing accident.
- **The job payload is unspecified**, which is the one part of the wire
the
agent parses and the one thing a document written before two
implementations
exist was supposed to pin. If the other end's test expects different
field
names, that is this gap and not a bug in either implementation, and it
should
  be settled in the specification before either side moves.
- **Nothing said whether a person may report a state.** Implemented as
`403`:
terminal states are the agent's to write, and a person closing their app
is
a different fact from a run that stopped. That reading is also why
cancellation, listed below, has
  nowhere to live yet.

## What this does not verify

- **No live round trip.** Every assertion here goes through
`app.request`
against a real Postgres. No real host agent has ever called any of these
  five endpoints, and no client has ever read a ticket out of one.
- **The claim is not verified under concurrency.** The compare-and-set
is
pinned by stepping two attempts in sequence and showing the second
matches
zero rows. Two agents actually racing, on two connections, is not tested
and
  cannot be from a single-process test.
- **The wire shape is asserted against this lane's reading of the
specification, not against the other end.** That is deliberate — each
end
  writes its own test — but it means a shape agreement has *not* been
demonstrated. Both tests passing separately is the evidence, and it does
not
  exist yet.
- **No ticket in this repository has ever been a real iroh ticket.**
They are
opaque strings to every assertion here; that the value survives a round
trip
  says nothing about whether anything could connect to it.
- **`steamAppId` reaching the agent is untested end to end.** It is
asserted
  present and correct in the poll response and nothing consumes it.
- **Nothing reaps a stuck `requested`.** A run whose host never polls
sits
there forever, and no screen distinguishes that from "starting soon".
Left
open deliberately: a timeout here would hide the gap rather than close
it.
- **Cancellation has no path.** A person who closes their app between
`requested` and `starting` leaves work that will be claimed and started
into
an empty room. There is no endpoint for it and this branch did not
invent
  one.
- **Nobody writes `ended` when the agent itself dies.** The only writer
of
terminal states is the agent, so a host that loses power leaves a `live`
run
that keeps billing. The fix belongs with whatever decides host liveness
has
authority over a run's state, and that does not exist.
`Machine.isOnline`
  exists but nothing joins it to a session.
- **Placement is verified only for the single-host case and the two
refusals.**
  No test exercises a real alternative placer beyond an inline stub, and
nothing calls `Box.createPlaced` from an endpoint, because there is no
box
  creation endpoint yet.








<!-- greptile_comment -->

<h3>Greptile Summary</h3>

This PR adds the HTTP and core-domain session lifecycle, including user
session requests, machine job polling, host-scoped state transitions and
ticket publication, placement support, box-state synchronization, and a
database constraint ensuring one active session per box.

- Adds authenticated user and machine session endpoints with
resource-level ownership and host scoping.
- Uses compare-and-set state transitions so only one caller can claim a
requested session.
- Adds a partial unique index and duplicate-data repair migration to
enforce one active run per box.
- Clears connection tickets when sessions become terminal.
- Adds placement abstractions and extensive API, domain, migration, and
concurrency-oriented tests.
- The latest changes document and test that ownership is checked per
user rather than per selected linked account; they do not resolve the
previously reported multi-account launch failure.

<h3>Confidence Score: 4/5</h3>

The PR is not yet safe to merge because selecting a different linked
account can still launch a game that only another account owns.

The previously reported ownership issue remains unresolved: the current
request path checks the game against the user-wide library and
separately verifies only that the selected linked account belongs to
that user. The new test explicitly accepts this behavior, so a user with
multiple Steam links can request a game through an account that does not
own it, causing the host launch to fail. The three resolved previous
findings are fully addressed or manually resolved and do not remain
outstanding.

**Files Needing Attention:** apps/api/app/routes/session.ts

<h3>Important Files Changed</h3>




| Filename | Overview |
|----------|----------|
| apps/api/app/routes/session.ts | Adds user and host session endpoints
with scoped authorization and validation, but the previously reported
selected-account ownership mismatch remains. |
| packages/core/src/session/index.ts | Adds job queries, host-scoped
compare-and-set transitions, ticket lifecycle handling, box-state
synchronization, and active-session conflict translation. |
| packages/core/src/session/session.sql.ts | Declares the partial unique
index enforcing at most one undeleted, unstopped session per box. |
| packages/core/migrations/0008_session_one_active_run_per_box.sql |
Repairs pre-existing duplicate active sessions, clears their stale
tickets, and creates the active-session unique index. |
| packages/core/src/box/placement.ts | Introduces a placement seam that
selects the sole owner host and refuses ambiguous or unavailable
placement. |
| apps/api/test/session.test.ts | Adds broad endpoint coverage and now
explicitly demonstrates the unresolved per-user rather than
per-linked-account ownership behavior. |


<h3>Sequence Diagram</h3>

```mermaid
sequenceDiagram
  participant U as User client
  participant A as Session API
  participant D as Core domain
  participant DB as PostgreSQL
  participant H as Host agent
  U->>A: POST /session
  A->>D: Validate box, game, library, and linked account
  D->>DB: Insert requested session
  DB-->>D: Enforce one active session per box
  H->>A: GET /machine/jobs
  A->>D: List requested sessions scoped to host
  D->>DB: Join session through box.machineId
  H->>A: POST /session/:id/state (starting)
  A->>D: Compare-and-set state for host
  D->>DB: Atomic scoped transition
  H->>A: POST /session/:id/ticket
  A->>D: Publish ticket while addressable
  U->>A: GET /session/:id
  A-->>U: Current state and ticket
  H->>A: POST /session/:id/state (ended/failed)
  D->>DB: Set terminal state and clear ticket
```

<sub>Reviews (4): Last reviewed commit: ["fix(api): say what the library
check
act..."](7bdca1240f)
| [Re-trigger
Greptile](https://app.greptile.com/api/retrigger?id=60463182)</sub>

<details><summary><h4>Context used (3)</h4></summary>

- Knowledge Base — [API HTTP composition and
authorization](https://app.greptile.com/nestri/-/custom-context/knowledge-base/nestrilabs/nestri/-/docs/api-http-and-auth.md)
- Knowledge Base — [Core domain and
persistence](https://app.greptile.com/nestri/-/custom-context/knowledge-base/nestrilabs/nestri/-/docs/core-domain-data.md)
- Knowledge Base — [Users, identity, and game
libraries](https://app.greptile.com/nestri/-/custom-context/knowledge-base/nestrilabs/nestri/-/docs/core-identity-and-library.md)
</details>


<!-- /greptile_comment -->
2026-09-04 19:31:16 +00:00
Wanjohi
7bdca1240f fix(api): say what the library check actually proves
A library entry records the person, not the account the games were
synced from, and `POST /library/sync` is not even told which account a
list came from. So the ownership check added for session requests asks
"has somebody this person linked got this game?" and not "does the
account about to play own it?" — for the one Steam account most people
have those are the same sentence, and for two they are not.

Confirmed rather than reasoned about: a person with two Steam links, a
game synced at person level, and a request naming the second account is
accepted today.

The check stays, because it still turns a box that boots, tries to
launch and fails minutes later into an immediate refusal, and it never
refuses on account grounds that the data cannot support. What changes is
the comment, which claimed the stronger property, and a test that pins
the gap so it is found deliberately rather than by surprise.

Closing it properly means recording the linked account on a library
entry: a column, a sync contract that says which account a list belongs
to, a uniqueness rule per account rather than per person, and a backfill
with no correct answer for rows already written. That is a decision about
what a library is, and inferring it here would be the kind of modelling
taken by accident that this branch refuses elsewhere.
2026-09-04 22:27:20 +03:00
Wanjohi
51dabddbd8 fix(api): a run drives the box under it, and needs a game and a claim
Four things the session endpoints did not do, or did wrongly.

The box had three states and nothing wrote them. A box read `created`
while a run on it was `live`, so every screen showing a person what their
hardware is doing was reading a column no code had ever moved. A run
reaching `live` now makes its box `running`, and a terminal run stops it:
`ended` cleanly, `failed` not, carrying the reason the agent gave. Not
every run state maps — a box has no `starting` on purpose, because that
transition is synchronous from the agent's side and a state nobody sets
is a state that lies. Both writes are one transaction, since "this run is
live" and "the box under it is running" are one fact in two tables, and a
box stuck `running` with nothing on it has nothing to correct it.

`POST /session` accepted any game in the catalog. A run launches as a
Steam account that has to own the game, so one outside the caller's
library is a box that starts, tries to launch and fails minutes later
with nothing to point at; it is now refused up front. Told apart from a
game that does not exist rather than hidden, because the catalog is
public and "you do not own this" is a sentence a person can act on. The
library is a synced copy, so this refuses a game bought since the last
sync — that is a staleness bug in the sync, not a reason to start runs
that cannot work.

Publishing a ticket only refused terminal runs, so a host could publish
an address for a run it had never claimed. A ticket is the address of
something being brought up, so only `starting` and `live` accept one, and
the state is in the write rather than only in the check above it. The two
refusals stay separate answers because they are different mistakes: one
agent skipped a step, the other has nothing left to reach.

The migration that adds the one-active-run index stopped older duplicate
runs without clearing the ticket they had published, which is the
invariant that same migration exists to establish. It clears it now,
verified against a box carrying two unstopped runs.

Nine tests, each checked against the unfixed code first.
2026-09-04 22:12:31 +03:00
Wanjohi
0d8630379b fix(api): a box gets one run, and a stopped run keeps no address
Two invariants the session endpoint stated but did not hold.

A box runs one thing at a time. `POST /session` read `activeForBox` and
refused when something was already running, but the read and the insert
are two statements with nothing between them: two requests that both saw
"nothing is running" each got a row, and the job poll then handed the
host the same box to start twice. Demonstrated at 2 rows and 2 jobs from
one box. That is the failure the state claim exists to prevent, one step
earlier, and it takes the same answer — a partial unique index on the
predicate the read asks about, so the database refuses the second insert.
`Session.request` turns that refusal into the same 409 in the same words,
so a caller cannot tell which of the two caught it.

The migration resolves any existing duplicates before creating the index,
keeping each box's newest unstopped run because that is the one a person
is waiting on, and stopping the rest rather than deleting them.

Separately, a run that reached `ended` or `failed` kept the last ticket
it published. Publishing a new one is already refused, so the stale
address was both the only ticket a client could read for a dead run and
the one nothing was allowed to replace — and a client that polls would
dial it. Terminal transitions now clear it, in `setState` as well as in
the compare-and-set, so the invariant does not depend on which writer
stopped the run.

Seven tests, each checked against the unfixed code first. The published
descriptions for the ticket field and the read endpoint now say that a
stopped run has no address.
2026-09-04 21:58:57 +03:00
KAAL1 (Bingus)
e70f05e245 fix(nescope): make HDR reachable — start XWayland, advertise the opaque FourCCs (#314)
Three related fixes. Together they take HDR from unreachable to working
end to end on the XWayland path.

## XWayland was never started

Three lines had been commented out since the initial import: the call
that spawns XWayland, the guard that waits for it, and the `DISPLAY`
handed to the child. Every game therefore launched as a native Wayland
client. Nothing reported it -- the compositor still logged the X display
it was telling clients to point at, which is why it read as working.

That is also why HDR never fired. The colour space is signalled over a
protocol whose Vulkan layer lives in the game process and finds the
compositor through the X11 root window, so the one path able to carry it
was the one path no game was on. `ENABLE_GAMESCOPE_WSI` and `DXVK_HDR`
were already being set, which switched that layer on and then handed it
a
display it could not use.

Restoring the guard also fixes the ordering it was written for: the
launch
now happens after XWayland reports ready rather than ~40ms before it.

## Mesa was dropping every format we advertised alpha-only

Mesa tracks two flags per VkFormat -- one contributed by a format alpha
FourCC, one by its opaque FourCC -- and skips any format carrying only
one:

```c
if (!(disp_fmt->flags & WSI_WL_FMT_ALPHA) ||
   !(disp_fmt->flags & WSI_WL_FMT_OPAQUE))
   continue;
```

We advertised `ARGB8888` and `XRGB8888`, so `B8G8R8A8` survived and made
the list look like it was working. Everything else was alpha-only and
was
dropped in silence -- `ABGR8888` had been advertised all along while
`R8G8B8A8` never once appeared on a surface. Adding the opaque spellings
takes the surface from 6 formats to 21 and restores the three that carry
HDR.

The comment above that list claimed it was for XWayland DRI3 and that a
game swapchain format was independent of it. It was the opposite: the
list decides what a game can select, and deleting an entry removes that
format from every client.

## Verified against swapchains, not format lists

A client asking for `A2B10G10R10` + `HDR10_ST2084` now gets a swapchain
and the compositor is told colorspace `1000104008`; one asking for
`R16G16B16A16_SFLOAT` + scRGB linear gets `1000104002`. Previously both
were refused at creation -- the WSI layer re-checks the requested format
against the driver own surface list, so the colour space and the pixel
format arrive from two different places and only one was being supplied.

`apps/nescope/scripts/verify-hdr-formats.sh` asks what a client is
offered
from inside a child process, keeping the XCB and Wayland surfaces apart
since a game presents through the XCB one. The default mode guards both
halves of what the compositor controls; `--expect-layer` states the full
target and passes once a WSI layer is present. No new dependencies
(`vulkaninfo` + `python3`).

## Still open

HDR is XWayland-only, documented as a FIXME in `hdr.rs`. A WSI layer
binds
the swapchain factory on its own Wayland connection while a native
client
surface lives on the client one, and object IDs do not cross
connections.
The FIXME records the fix both reference implementations point at, and
the
trap to avoid when we take it: gating format injection on "the
compositor
supports HDR" rather than on being able to signal the surface hands a
client PQ pixels that arrive tagged as SDR, with nothing reporting an
error.

nescope ships no WSI layer of its own; the above was verified with the
stock gamescope one, which drives our protocol unmodified.















<!-- greptile_comment -->

<h3>Greptile Summary</h3>

This PR makes HDR-capable native Wayland presentation reachable, adds
the alpha/opaque DMA-BUF FourCC pairs Mesa requires, makes XWayland an
explicit compatibility mode, and adds an HDR surface-format diagnostic.
- Starts XWayland only with `--xwayland`, waits for readiness before
launching the child, and stops cleanly if startup fails or times out.
- Routes Proton through Wayland unconditionally while retaining
`DXVK_HDR` as an HDR-specific setting.
- Advertises paired alpha and opaque FourCC variants with portable
modifiers.
- Separates XCB and Wayland probe results, selects one hardware adapter,
and distinguishes probe failures from format regressions.
- Documents the limitations of the legacy gamescope WSI path and the
external-layer dependency.

<h3>Confidence Score: 5/5</h3>

The PR appears safe to merge; no outstanding correctness, security, or
repository-rule issue remains.

All previous findings are resolved in the current code, including the
XWayland failure lifecycle, removal of unsupported vendor modifiers,
corrected HDR documentation, reliable diagnostic failure handling,
per-GPU format selection, and unconditional Proton Wayland routing. The
changes since the previous review preserve diagnostic output handling
without introducing a new failure.

<h3>Important Files Changed</h3>




| Filename | Overview |
|----------|----------|
| apps/nescope/src/main.rs | Adds opt-in XWayland lifecycle handling,
readiness timeout, conditional DISPLAY propagation, and unconditional
Proton Wayland routing; the previous launch-environment finding is
fixed. |
| apps/nescope/src/state.rs | Stops the event loop on reported XWayland
startup failure and advertises portable paired alpha/opaque DMA-BUF
formats without vendor-specific modifiers. |
| apps/nescope/src/hdr.rs | Documents the working native Wayland HDR
path and accurately distinguishes it from the external, deliberately
disabled gamescope WSI route. |
| apps/nescope/scripts/verify-hdr-formats.sh | Adds a diagnostic that
keeps GPU and surface paths separate and now preserves the intended exit
behavior when filtered Vulkan diagnostics contain no matching lines. |


<h3>Flowchart</h3>

```mermaid
%%{init: {'theme': 'neutral'}}%%
flowchart LR
  Launch[nescope child launch] --> Mode{--xwayland?}
  Mode -->|No| Wayland[Native Wayland surface]
  Mode -->|Yes| Wait[Start and await XWayland]
  Wait -->|Ready| XCB[XCB / XWayland surface]
  Wait -->|Error or 10s timeout| Stop[Log failure and stop]
  Wayland --> Formats[Paired alpha and opaque FourCCs]
  Formats --> HDR[HDR10 and scRGB formats available]
  XCB --> SDR[X11 compatibility path without native HDR]
  Proton[Proton child] -->|PROTON_ENABLE_WAYLAND=1| Wayland
```

<sub>Reviews (9): Last reviewed commit: ["nescope/scripts: guard the
diagnostic
pi..."](f8bdd68f87)
| [Re-trigger
Greptile](https://app.greptile.com/api/retrigger?id=60368324)</sub>

**Context used:**

- Knowledge Base — [Compositor, display, and input
control](https://app.greptile.com/nestri/-/custom-context/knowledge-base/nestrilabs/nestri/-/docs/compositor-input.md)
- Knowledge Base — [Streaming host
runtime](https://app.greptile.com/nestri/-/custom-context/knowledge-base/nestrilabs/nestri/-/docs/streaming-runtime.md)

<!-- /greptile_comment -->
2026-09-04 19:18:46 +03:00
KAAL1 (Bingus)
200bc9c75f fix(nescapture): stop defaulting unreadable formats to BGRA (#315)
Stacked on #313, which this depends on.

Found while checking whether the 10-bit HDR path actually works now that
a
client can obtain an HDR swapchain (see #314). **It does** — verified
end to
end rather than from the format list: a client requesting `A2B10G10R10`
+
`HDR10_ST2084` produces

```
pix_fmt=yuv420p10le   color_range=pc
color_space=bt2020nc  color_transfer=smpte2084  color_primaries=bt2020
```

which is a correctly tagged HDR10 stream, and the first pixel-level HDR
check
here with 10-bit rather than 8-bit input. Three ways it could have gone
wrong
instead.

## Unrecognised formats defaulted to BGRA

`vk_format_to_input_format` returned `BGRA` for anything it did not
know, which
reads a packed 10-bit or FP16 buffer as eight-bit channels. It now
returns
`None`, and the encode loop drops those frames with one log line per
format.

A stalled stream is a complaint. A stream at full frame rate carrying
nonsense
is not, and that is the failure this area keeps producing.

## Bit depth and input format had drifted apart

They were two separate matches on the same `VkFormat`. `A2R10G10B10`
counted as
ten-bit in one and had no entry in the other, so it fell back to
eight-bit
BGRA — the encoder configured for ten bits while the converter read
eight.

Depth now derives from the input format, so that disagreement is
unrepresentable. `A2R10G10B10` stays unmapped deliberately: a WSI layer
offers
it as one of its HDR pairs and the compositor dmabuf list advertises it,
but
the converter has no red-first 10-bit input, so there is nothing correct
to map
it to.

## The CPU fallback could not read either HDR format

It read four bytes per pixel for every format and encoded eight-bit
regardless, so a packed 10-bit buffer became garbage and an FP16 one was
half
an image of misread floats. It now refuses what it cannot read.

## Recorded, not fixed: the colour space we see is not always the one
requested

A FIXME at the point the value is read. A WSI layer rewrites
`imageColorSpace`
to `SRGB_NONLINEAR` before calling down — deliberately, since it carries
the
real colour space to the compositor out of band. We sit below it, so we
read
the rewrite. Measured, all three lines from one run:

```
[Gamescope WSI] ... colorspace: VK_COLOR_SPACE_HDR10_ST2084_EXT
swapchain created — format=A2B10G10R10 colorspace=SRGB_NONLINEAR
(re)init encoder: H265 Yuv420 Ten Bt709 → P010
```

Ten-bit right, BT.709 wrong: PQ samples encoded and tagged as SDR. The
same
client *without* the layer gives `Ten Bt2020` and an smpte2084 stream,
so this
is specific to the layer path — which is the path Proton titles take.

The fix cannot be local; the true colour space only exists in the
compositor,
which does receive it, so it needs a channel from there. Layer ordering
is not
a fix — we do not control it, and the non-layer path still needs the
Vulkan
value. Left out of this PR as a design change rather than a bug fix.

## Verification

- 4 new tests, 12 total, all passing.
- No new clippy warnings (diffed against the base branch).
- 10-bit HDR path: unchanged, still `Ten Bt2020` / smpte2084.
- SDR path: `verify-chain.sh` passes, 835 frames, 8-bit BGRA, brightness
  agreement 0.57.





<!-- greptile_comment -->

<h3>Greptile Summary</h3>

This PR makes Vulkan format handling fail safely instead of interpreting
unsupported swapchain buffers as BGRA.
- Maps supported Vulkan formats to explicit converter inputs and derives
bit depth from that mapping.
- Drops unsupported GPU frames with rate-limited logging.
- Rejects unsupported HDR formats in the eight-bit CPU fallback.
- Documents the color-space limitation caused by rewritten WSI metadata.
- Adds tests covering unsupported, eight-bit, 10-bit, and FP16 formats.

<h3>Confidence Score: 5/5</h3>

The PR appears safe to merge, with no new actionable issues introduced
since the previous review.

The changes since the previous review are empty, the sole previous
finding was manually resolved after Greptile conceded it based on the
stacked PR dependency, and the full PR introduces no confirmed rule
violations or remaining correctness failures.

<h3>Important Files Changed</h3>




| Filename | Overview |
|----------|----------|
| apps/nescapture/src/encode.rs | Replaces unsafe BGRA fallback behavior
with explicit format validation, consistent bit-depth derivation,
guarded CPU fallback, and focused tests. |
| apps/nescapture/src/swapchain.rs | Documents the known WSI color-space
rewrite limitation at the point where swapchain metadata is recorded. |


<h3>Flowchart</h3>

```mermaid
%%{init: {'theme': 'neutral'}}%%
flowchart TD
  A[Captured Vulkan frame] --> B{Known converter input?}
  B -->|No| C[Log format change and drop frame]
  B -->|Yes| D[Derive input format and bit depth]
  D --> E{DMA-BUF path available?}
  E -->|Yes| F[GPU color conversion and encoding]
  E -->|No| G{Eight-bit RGBA or BGRA?}
  G -->|Yes| H[CPU conversion and encoding]
  G -->|No| I[Return recoverable error]
```

<sub>Reviews (3): Last reviewed commit: ["docs(nescapture): the
colour-space note
..."](7b05908e0a)
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Greptile](https://app.greptile.com/api/retrigger?id=60377562)</sub>

**Context used:**

- Knowledge Base — [Vulkan capture
layer](https://app.greptile.com/nestri/-/custom-context/knowledge-base/nestrilabs/nestri/-/docs/capture-layer.md)

<!-- /greptile_comment -->
2026-09-04 19:05:41 +03:00
KAAL1 (Bingus)
3389e6065f fix(nescapture): tag encoded streams full-range to match the samples written (#313)
## The bug

`nescapture` sets the colour converter full-range unconditionally, but
the video usability information carried pixelforge's **default
limited-range flag**. A compliant decoder then expanded 16–235 out of
samples that already covered 0–255 — darkening midtones and clipping
both ends.

pixelforge keeps two separate flags for this, one on the converter and
one on the colour description, and its own documentation says they must
agree. Only the first was being set.

The two lines are about forty apart, each is correct on its own, and the
comment above the second states the right intent while the call below it
does the opposite:

```rust
// GPU framebuffer captures are always full-range — use BT.709 full-range
// so the decoder doesn't apply limited-range expansion.
enc_cfg = enc_cfg.with_color_description(ColorDescription::bt709());
//                                       ^ this constructor is limited-range
```

## Evidence

Measured on a Radeon RX 9060 XT, comparing the encoded result against
the compositor's own readback of the same frames:

| ground truth = `51` | before | after |
|---|---|---|
| flat background, decoded | **`38`** | `49–51` |
| mean luma, capture path vs readback | **10.41 apart** | **0.55 apart**
|
| luma histogram intersection | **0.090** | **0.913** |
| declared `color_range` | `tv` | `pc` |

**The encoded luma is byte-identical before and after** — `Y = 51.00`,
standard deviation `0.00` on both runs. Only the tag changed, which is
what identifies this as a signalling bug rather than a conversion one,
and why nothing short of a comparison against ground truth could see it:
the stream was valid, the frame rate was right, the picture was
recognisable, and every liveness check passed.

The HDR arm (`bt2020_pq`) carried the same defect and is fixed the same
way, but **has not been run** — no 10-bit verification here.

## `scripts/verify-chain.sh`

Runs a Vulkan workload under `nescope` with the layer active and
compares the encoded output against `nescope-shot`'s readback of the
same frames. Two paths that share almost no code see the same content,
so disagreement localises the fault; a single path cannot tell a correct
frame from a plausible-looking wrong one.

**Confirmed it fails when this change is reverted** — both the tag check
and the brightness-agreement check fire.

One note on its thresholds, since it is easy to get backwards: the
not-blank check is a low absolute floor plus a comparison against the
readback's own structure, rather than a fixed number. A fixed number was
tried first and was wrong in the worst way — the **broken** build scored
20.49 on it and the **fixed** build 17.74, because the range defect
stretched contrast and that reads as more detail. How much structure a
correct frame carries depends on what the workload drew, so the only
stable reference is ground truth measured in the same run.

## Not covered

`vkcube` rather than a real workload; 720p, H.264, 8-bit; one card, one
driver. XWayland, HUD detection and real swapchain formats are
untouched.










<!-- greptile_comment -->

<h3>Greptile Summary</h3>

The PR aligns encoded-stream color metadata with the full-range samples
produced by nescapture and updates the CPU fallback to BT.709 full-range
conversion.
- Updates pixelforge and configures matching converter color space,
range, and SDR reference white.
- Corrects Vulkan color-space mapping and adds regression tests for SDR,
HDR, and CPU fallback behavior.
- Adds SDR capture-chain and HDR comparison verification scripts.

<h3>Confidence Score: 5/5</h3>

The PR appears safe to merge.

No blocking failure remains.

<h3>Important Files Changed</h3>




| Filename | Overview |
|----------|----------|
| apps/nescapture/src/encode.rs | Aligns GPU and CPU conversion output
with encoded color metadata and adds focused regression coverage. |
| apps/nescapture/scripts/verify-chain.sh | Adds an end-to-end SDR
verifier using a static corner patch to avoid the previously reported
temporal mismatch. |
| apps/nescapture/scripts/verify-hdr.sh | Adds an HDR comparison harness
for inspecting conversion behavior across builds. |
| apps/nescapture/Cargo.toml | Advances pixelforge to the revision
providing the required color-conversion configuration. |
| Cargo.lock | Records the pixelforge update and resulting transitive
dependency refresh. |

<sub>Reviews (5): Last reviewed commit: ["test(nescapture): check the
HDR
conversi..."](2f9773c4b7)
| [Re-trigger
Greptile](https://app.greptile.com/api/retrigger?id=60147076)</sub>

**Context used:**

- Knowledge Base — [Vulkan capture
layer](https://app.greptile.com/nestri/-/custom-context/knowledge-base/nestrilabs/nestri/-/docs/capture-layer.md)

<!-- /greptile_comment -->

---------

Co-authored-by: DatCaptainHorse <DatCaptainHorse@users.noreply.github.com>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 19:03:13 +03:00
Wanjohi
bbe729e5c7 feat(api): the session endpoint, and a claim that only one caller can win
A run of a box had core support and no HTTP surface. This adds both halves
of it: a person asks for a run and reads it back, and the host agent the box
is placed on is handed the work and reports what happened.

The access rule is the point. An agent may only see or touch a run whose box
is placed on its own hardware, and that is a `where` clause on every one of
the three agent endpoints rather than a check next to them — host credentials
are long-lived secrets sitting on hardware in somebody's home, so what one
leaking can reach has to be decided by the query. "No such run" and "not your
run" are the same refusal, so ids cannot be discovered by reporting states
at them.

`Session.setState` updated on the id alone, which means two agents polling
the same work both succeed and both start the same box. There is one host
today, which is exactly why that would have been built wrong and stayed
wrong. The state a run is moving out of is now part of the `where` clause,
so the database picks the winner; the loser gets a conflict rather than a
silent no-op. Three cases that look alike are kept apart: re-reporting a
state you already reported changes nothing and is not an error, a transition
that does not exist is refused with the run left where it was, and another
host reporting anything is forbidden.

Asking for a run makes no decision about where it happens — a box already
names its hardware, so the run inherits it by join. Placement therefore
gets an interface at box creation, where the decision actually is, with the
single-host case as its implementation and a deliberate refusal when there
is more than one candidate and no policy to choose with.

Tests cover the wire shape from both sides, the query scoping, the claim,
and the timestamp idempotence a run's billing rests on.
2026-09-04 18:57:08 +03:00
Wanjohi
aaa1bbd0f4 fix(nesdoctor): the closing prose still said "launch times"
Missed when the histogram was corrected: the tool spent a paragraph asking
people to send the JSON and described it as holding "installed titles with
sizes and launch times", which is the same claim the histogram itself no
longer makes. Steam stores when a title was last played, not each time it was
launched.

Found by running the installer end to end after the release — the shipped
0.3.0 binary prints it. Fixed here for the next one; it is prose in the
closing paragraph, not a number anybody acted on.

Same wording in the --json flag's doc comment, in the submit URL's comment,
and in the consent prompt that asks to read the library at all. That last one
matters most of the four: it is what somebody reads before saying yes.
2026-09-03 22:40:36 +03:00
Wanjohi
d8e5c19181 release(nesdoctor): point the installers at v0.3.0
Flipped after publishing, so there was never a window where the live installer
named a tag that did not exist.

Verified before committing: all five assets under the new tag return 200, and
the installer was run end to end — it fetched the published binary, checked it
against SHA256SUMS, and the thing it ran reported 0.3.0.
2026-09-03 22:40:26 +03:00
Wanjohi
29a826d9f9 release(nesdoctor): 0.3.0
Minor rather than patch, because the output changed meaning and not just its
numbers. `up=` was overstated by about a fifth and is now measured over the
window the bytes were actually counted in, so a figure from 0.2.x and one from
this release are not comparable. And the hour-of-day histogram was labelled
launches when Steam only stores one timestamp per title, so the summary line
now carries which sample a peak came from — `n=28/all` where it used to say
`n=28`, which is a shape people paste.

New wire keys hours30, n30, nspan, playh and peaksrc. hours, n and peak keep
their names and meaning so the corpus stays continuous; a submission without
peaksrc is whole-library by construction.
2026-09-03 22:31:58 +03:00
Wanjohi
cf56aaf04c docs: this repo is public, so say what things are, not who decided them
Comments and served API descriptions here had grown references that only make
sense to someone with our internal notes: relative paths that escape this
tree, filenames and titles of documents nobody outside can open, quoted prose
from them, and the name of a component that has no public surface — once in an
OpenAPI description, which is published output rather than source.

None of it was load-bearing. Every case restates as what the code actually
requires, and every rewrite came out shorter: "in the words the host agent
reports" for a component name, "republished as addresses are discovered" for a
quoted phrase, "a size tier sets vCPU, RAM and the output geometry" for a
sentence that had been carrying a path.

Internal reasoning is now cited exactly one way, ref(d-NNNN) in a source
comment, with the rule that the sentence must still stand if the marker is
deleted. CLAUDE.md leads with it, because the previous version of this mistake
was made by people who knew the repo was public and it still took ten
occurrences to notice, so "be careful" is not a mechanism.

Commit messages get the stricter rule and carry no references at all: a
comment can be fixed by the next commit and a published message cannot be
fixed at all. Git hooks now enforce both halves.

The check caught a real one while being written: the CLAUDE.md table spelled
out the paths it was prohibiting, which discloses them to exactly the reader
it protects against.

138 tests, 0 fail.
2026-09-03 22:16:47 +03:00
Wanjohi
c3682136f1 test(api): hold the heartbeat wire contract from the host's side
`lastSeen` and `intervalSeconds` are the two field names neslet's plane.rs
reads out of the reply, and a rename on either side yields a host that beats,
parses nothing and reports success. These tests are what make that a contract
rather than a coincidence.

Also asserts the property the middleware comment claims and nothing checked:
wrong machine credentials and no credentials produce *identical* responses,
because bad credentials fall through to `public` rather than erroring so that
probing cannot reveal which machine ids exist. Comparing the two bodies is the
only way that stays true.

Two of these tests started out asserting 401 and were wrong, not the code —
`machineOnly` sees a public actor either way and forbids.

138 tests, 0 fail.
2026-09-03 21:46:30 +03:00
Wanjohi
4315510de8 feat(api): a host can say it is alive, and is told how often to
Second half of G1's "neslet registers against api.nestri.io and heartbeats".
Registration already worked; there was no heartbeat endpoint at all — grep for
it across apps/api and packages/core returned nothing, and neslet's own
main.rs says the same from its side.

POST /machine/heartbeat, machine credentials only. Two decisions worth stating
because neither is obvious from the diff:

**It returns the interval.** The auth middleware already touches lastSeen on
every authenticated machine request, so an endpoint that only did that would
add an endpoint and no capability. What a host cannot know on its own is how
often the control plane wants to hear from it, so the response carries the
cadence. A fleet whose interval can only change by shipping a new agent is a
fleet whose interval never changes.

**It takes no body.** neslet has a HostSummary ready to send, and week 2 owns
box state reporting. Accepting fields nothing acts on yet would mean a wire
shape we would have to keep, chosen before the thing that consumes it exists.

Online-ness is derived from lastSeen rather than stored: a host that stops
beating goes offline through the passage of time, which is the one mechanism
that cannot itself fail. Three missed beats, not one — a single missed beat is
a lost packet, and treating that as offline would make placement flap.

Also: the machine actor's teamID stops being optional. It was `...(teamId ? {}
: {})` in the middleware, a branch for a state that cannot exist now that
machine.team_id is notNull.

134 tests, 0 fail.
2026-09-03 21:42:15 +03:00
Wanjohi
6c1d407985 feat(core): a box is a row, a session is the billing unit
Migration 1 of 0048, and the first of the seven weeks — nothing about a live
feed works without these two tables, so it is not a cleanup during them.

  box      a VM someone owns: an id that is also its DNS label, an editable
           label, an owning user, the machine it sits on, a tier and a state.
           Owned by a person and placed on a team's hardware, which are two
           different relationships, hence both userId and machineId.
  session  one run of one box by one linked Steam account, and what costs
           money. Separate from box because the ticket changes after bind as
           addresses are discovered — the vsock contract calls it "a stream,
           not one value" — so it is a column a client polls, not a value it
           is handed once.

Box states are neslet's own three and no more. `starting` and `stopping` are
the obvious additions and both are omitted because nothing would ever write
them; a failed box is `stopped` with stopClean false, which is how neslet
models it too.

The generated migration would have failed on live rows in three ways, so it
is hand-written and tested against a database seeded at the old schema:

  - machine.team_id becomes notNull, and *every existing row is null* because
    the old registration path passed null. Personal teams are backfilled for
    machine owners first, reusing a team they already own rather than minting
    a second, with the owner membership row repaired where missing.
  - game_download.host_id becomes a foreign key. It held free-form strings,
    so unattributable rows are deleted before the cast — the only destructive
    statement here, and a considered loss: it is a progress report neslet
    re-derives from disk.
  - Team.createPersonal was written and documented in packages/core/CLAUDE.md
    as part of the login flow and never actually called, so no user has a
    team. ensurePersonal is idempotent and now runs on every login, which is
    what backfills accounts the migration does not reach.

Verified on a seeded legacy database: three null-team machines backfilled, an
existing team reused rather than duplicated, a blank display name handled, and
both unattributable download rows dropped while the attributable one survived.

Also fixes two things this work ran into rather than caused:

  - Database.client() built a new postgres pool on every call, and use()
    called it twice per invocation — pools of ten connections held for a 30s
    idle timeout. Invisible in a Worker where requests are short; the suite
    crossed 100 connections and Postgres said "sorry, too many clients
    already" in whichever file ran last, which reads as a flaky test rather
    than a leak. Now one pool per connection string.
  - download.test.ts asserted against `hst_…` host ids, which is exactly the
    unattributable row the new foreign key exists to refuse.

There is no "no team" any more: PATCH /machine/:id took teamId null to mean
"mine alone" and now requires a team, because the personal team is the one to
name. Its test is updated to the new contract rather than deleted.

113 → 128 tests, 0 fail.
2026-09-03 21:39:27 +03:00
Wanjohi
1bfdfcf3cf fix(nesdoctor): "launch records" were never launches
Steam keeps one LastPlayed per title, so the hour-of-day histogram holds one
sample per *title* — at the hour it was last closed, over the whole life of
the library. It was labelled and reported as a launch histogram, and the
module header claimed a library of eighty games is "eighty samples of what
hour this person launches a game at — a real distribution". It is not.

The bias has a direction, and everything pushes the same way: a title played
once years ago weighs exactly as much as a daily driver, a daily driver
contributes one sample ever, and an afternoon spent installing and trying a
dozen games stamps a dozen titles with that afternoon's hour. So the metric
over-weights trying and under-weights playing. On the production host it
reads n=331 with 329 titles no longer installed; on this dev machine, 28
titles spanning 570 days.

Corrected rather than disclaimed, because the direction is knowable:

- Fields say what they hold — last_played_hours, titles_sampled, and no
  "launch" anywhere. The display says "when you last played each game — 28
  titles, local time, reaching back 19 months".
- A second histogram over titles played in the last 30 days, which is one
  sample per title still in use, and the peak window prefers it when it has
  the samples to claim a shape.
- Which histogram the peak came from is stated in the output and on the wire
  (peaksrc=30d|all), and the summary line carries the sample count the
  window was actually computed from, so a narrow peak drawn from nine titles
  cannot borrow the authority of three hundred.
- New keys hours30, n30, nspan, playh. hours/n/peak keep their names and
  meaning so the corpus stays continuous; submissions without peaksrc are
  whole-library by construction.

Playtime is read and reported but deliberately not used as a weight: it is a
lifetime total against a single timestamp, so weighting by it would multiply
one arbitrary hour by five hundred.

Five tests, including the wrapping midnight window, which is the case a
non-wrapping scan gets wrong and exactly the evening peak 0017 is about.
2026-09-03 18:52:47 +03:00
Wanjohi
3dba825f17 fix(nesdoctor): up= was overstated by about a fifth
The throughput window and the byte count disagreed. Bytes were counted from
the moment the upload threads started, the 1.5 s queue-fill ramp included;
the divisor was that same span with 1.5 s subtracted from it. So a numerator
covering ~8.3 s was divided by ~6.8 s, and every up= figure nesdoctor has
ever published is high by ~22%.

Snapshot the counter and the clock together after the ramp, and measure both
from there. Excluding the ramp is also the better measurement: TCP slow-start
lives in it, so it is not the steady state a session gets.

Found by running speedtest on the same line in the same afternoon — 284 Mbps
against our 502 — which is the only way it could have been found. The code
was self-consistent and the number it printed was plausible, so no amount of
re-reading would have shown it. A boundary effect remains and is documented
in the code rather than papered over: bytes arrive one completed 8 MiB POST
at a time, so up= keeps a few per cent of upward slack.

Submissions collected to date stay useful as a floor and as a bufferbloat
corpus. They are not usable as throughput.
2026-09-03 18:46:28 +03:00
Wanjohi
90bd93f47f docs(nesdoctor): Windows will block it, and here is why and what to press
Reported from a real machine on release day. The README asks strangers to run a
binary, so it should say what actually happens when they try.

The why matters more than the workaround: SmartScreen objects to the file being
unsigned and having no download history, not to anything the program does. And
history attaches to the file hash, so a project releasing four times in an
afternoon never accumulates any -- waiting is not a strategy.

Offers the source build as the version that requires no trust, and says that
stopping is a reasonable choice. Reproducible CI builds and published checksums
prove provenance without moving SmartScreen an inch, and pretending otherwise
would be the kind of overclaim this tool cannot afford.
2026-09-02 16:56:29 +03:00
Wanjohi
f0227201db release(nesdoctor): point the installers at v0.2.2
Flipped after publishing, so there was never a window where the live installer
named a tag that did not exist.
2026-09-02 16:49:43 +03:00
Wanjohi
dc99bd2743 fix(nesdoctor): the Apple Silicon GPU name had doubled parentheses
The fallback worked -- the macOS runner now reports a GPU instead of
`unknown`, and the raw probe dump settled which of the two candidate causes it
was: a headless virtual Mac with no display adapter to enumerate, so
`system_profiler` had nothing and the parser was never at fault.

It read `Apple M1 (Virtual) (integrated)`, because the SoC name already
carries a parenthetical on a VM. Em-dash instead. The suffix stays: it records
that the name came from the chip rather than from a display adapter, which is
the difference between a machine with no GPU and a machine with no display.
2026-09-02 16:34:11 +03:00
Wanjohi
730739a5c0 fix(nesdoctor): fall back to the SoC name on Apple Silicon, and print raw probes
The macOS arm added in the previous commit did not change anything -- the
runner still reported `gpu=unknown`. Checked rather than assumed, which is the
only reason it is known.

Two possible causes and no way to choose between them from here: either the
`system_profiler SPDisplaysDataType` parsing is wrong, or that machine is a
headless virtual Mac with no display adapter to enumerate at all, in which case
`unknown` was the correct answer and there is nothing to fix. The second is
likely and the first is not ruled out.

So, rather than guessing again: on an arm64 Mac the GPU *is* the SoC, so the
chip name is a true and useful answer even with no display attached.
`sysctl -n machdep.cpu.brand_string` works headless and yields
"Apple M1 (integrated)". Intel Macs get no fallback, because there the GPU may
be integrated or discrete and a guess would be wrong rather than coarse.

And the CI step now dumps the **raw** output of each platform's probes --
`system_profiler`, `Get-CimInstance Win32_VideoController`, `Get-PSDrive`,
`df -Pk`, `/sys/class/drm` -- into its own log group. A field that comes back
empty can then be told apart from a parser that is wrong, which is exactly the
distinction that cost this round trip. All of it is `|| true`: the step exists
for looking, and a probe that misbehaves on a runner must never fail a release.
2026-09-02 16:29:03 +03:00
Wanjohi
0f26df5c02 fix(nesdoctor): every Mac reported gpu=unknown, because the probe had no macOS arm
Seen in the macOS CI log:

  nesdoctor 0.2.2 | macos/aarch64 | gpu=unknown | ...

`gpus()` had a Linux arm, a Windows arm, and `Vec::new()` for everything else.
Macs are clients rather than hosts, so it went unnoticed -- but 0041 wants a
client vendor matrix and an unlabelled row is no use in one. An M-series
integrated GPU and a discrete Radeon in an Intel Mac decode very differently,
and "unknown" cannot tell them apart.

`system_profiler SPDisplaysDataType` is the only place the chipset name lives.
Parsed loosely: the format has changed between macOS releases, so a name we
cannot find costs a field rather than the run. Vendor is matched over Apple,
AMD, Radeon, NVIDIA and Intel; `render_node` stays `None` because macOS has
none and a Mac cannot host regardless.

Still missing on macOS and stated rather than papered over: filesystem types
and the display probe. The EDID path is sysfs on Linux and WMI on Windows, and
macOS exposes neither -- so Mac respondents report no colour depth or HDR
capability. That is a real gap for the video work, since Mac panels are exactly
the P3 and high-refresh cases worth knowing about, and it needs
`CoreDisplay`/`system_profiler` parsing rather than a one-line fix.
2026-09-02 16:25:09 +03:00
Wanjohi
53d69ca289 fix(nesdoctor): parse df from the right; a device name can contain a space
Three more things the macOS CI log showed, none of which had ever been visible
from this laptop.

`df -P` fixes the column order but not that the filesystem name is one word.
macOS emits

    map auto_home           0    0    0  100%  /System/Volumes/Data/home

which shifts every field by one, so indexing from the left read the capacity
percentage as part of the mount point and a device name as the size. The row
appeared in the log as `100% /System/Volumes/Data/home`, which is what gave it
away. Columns are now counted from the right, where `df` actually guarantees
them: size, used, avail, capacity, mount. A test covers the plain row, the
two-word `map auto_home` row, and an SMB share whose device name contains a
space -- the case that makes left-indexing wrong in principle rather than just
on Macs.

The `/System` filter I claimed to have added in the previous commit was not in
the file. The assertion that was supposed to catch that passed against the
wrong block, so it went in silently and `/System/Volumes/xarts` kept appearing
in the very output I had just quoted as fixed. It is there now, along with
`/private/var/vm` and `/Volumes/Recovery`, and verified by grep rather than by
belief.

And a filesystem reporting no capacity is not storage: `map auto_home`, devfs
and macOS signed asset bundles all report zero and were padding the filesystem
count in the summary line.

Net effect on the runner, across this commit and the last: 11 filesystems and
"483 GiB free of 1600 GiB" on a 320 GiB machine, down to the one real volume.
2026-09-02 16:20:57 +03:00
Wanjohi
f32db5393b fix(nesdoctor): APFS volumes share one pool, and were counted eleven times
Found by reading what the macOS CI runner prints, which is the whole reason
that step was added an hour ago. First time anyone had looked at what these
probes return on a platform that is not this laptop:

  /                          96 GiB free of 320 GiB
  /System/Volumes/VM         96 GiB free of 320 GiB
  /System/Volumes/Preboot    96 GiB free of 320 GiB
  /System/Volumes/Update     96 GiB free of 320 GiB
  /System/Volumes/Data       96 GiB free of 320 GiB
  11 filesystems · 483 GiB free of 1600 GiB total

On a machine with 320 GiB. An APFS container presents each volume as its own
filesystem with its own `/dev/diskNsM`, so the device-name dedupe -- which
correctly collapses btrfs subvolumes -- cannot see that the space is shared.

Two changes.

`/System/Volumes` and `/private/var/vm` are skipped: they are not user storage,
and on a Mac they are most of the rows.

And filesystems are deduped by *pool* as well as by device. Two filesystems
reporting byte-identical capacity and byte-identical free space are one store,
whatever their device names say -- which also covers bind mounts and
thin-provisioned LVM, neither of which the device check catches either. Two
genuinely separate disks agreeing to the byte on both figures would cost one
row; a storage total inflated fivefold is a number a capacity plan gets built
on.

Simulated against the exact runner output: eight rows and 2560 GiB become one
row and 320 GiB.

The Windows runner, by contrast, was correct first time -- `C:` and `D:` are
genuinely separate and totalled 179 GiB free of 299 GiB. Worth recording that
the reason we know is that we looked, rather than that we reasoned about it.
2026-09-02 16:16:09 +03:00
Wanjohi
786267f30a fix(nesdoctor): report storage properly, and stop being blind on Windows
A submission from a team machine with four drives and 22 TiB reported
`disk=8880`, and the field was not wrong so much as meaningless: it was the
free space on the single largest mount, with no capacity anywhere and no total.
A content store is sized against capacity.

Storage now reports four things, because they answer different questions and
one number could not:

  diskfree   total free across every real filesystem
  disksize   total capacity
  diskmax    the largest single filesystem, which is the real ceiling for any
             one store -- a dataset cannot be spread across drives
  disks      how many there are

The ambiguous `disk` key is gone rather than silently redefined, so old rows
stay readable as what they were. `Get-PSDrive` reports Free *and* Used and we
were reading only Free, hence no capacity on Windows at all.

Pseudo-filesystems are now excluded by *type* rather than by mount path. Path
filtering missed `/tmp` on a tmpfs, whose free space is RAM -- so 7 GiB of
memory was being added to a storage total, which is exactly the sort of number
a capacity plan gets built on.

## The real finding, which was not about disks

"We are working blind on Windows" is correct, and both Windows bugs this tool
has had prove it: a virtual display adapter reported as the GPU, and a URL
truncated at its first `&`. Both were in code that only runs on Windows, both
were found by a person reading the results channel, and neither could have been
found here -- the development machine is Linux and `xdg-open` never sees a
shell.

Two things about that, and the first is the one that generalises.

`OPENERS` is now a const with a test asserting the property that actually
matters: **never hand a URL to anything that will re-parse it.** No `cmd`, no
`sh`, no `powershell`, no `start` builtin, and no argument that looks like it
wants the URL interpolated into it. Unlike the bug, that is checkable on every
platform in a millisecond. Verified by reintroducing `cmd /C start "" <url>`
and confirming the test fails with the right message, then reverting.

And CI already runs a real Windows machine and a real macOS one -- we simply
were not looking at them. Each smoke-tested target now prints its full report
and JSON into a collapsed log group. Deliberately not `set -e`: this step is
for looking, and a probe that misbehaves on a runner must not fail a release.
It turns "working blind" into "looking at it once per release", which would
have shown the Parsec adapter problem the first time a Windows binary was ever
built.

Version to 0.2.2.
2026-09-02 16:10:05 +03:00
Wanjohi
a84886861c release(nesdoctor): point the installers at v0.2.1
v0.2.0 and earlier lose Windows submissions entirely, so nothing should be
installing them.
2026-09-02 15:59:28 +03:00
Wanjohi
a7eeb14de5 fix(nesdoctor): cmd re-parsed the submit URL and destroyed every Windows result
Two submissions arrived carrying `v=0.2.0` and nothing else. Flagged from the
channel, not caught by us.

The Windows arm of `open_in_browser` was `cmd /C start "" <url>`. `cmd.exe`
re-parses its own command line and treats `&` as a command separator; Rust's
`Command` quotes arguments for the MSVC C runtime convention, which `cmd` does
not honour. So the URL was cut at its first `&` -- which in ours falls
immediately after `v=` -- and the browser opened

    https://doctor.nestri.io/?v=0.2.0

carrying nothing whatsoever. Reproduced exactly with the same mechanism in a
POSIX shell: `sh -c 'echo <url>'` unquoted prints precisely that prefix.

Every Windows user who pressed Enter lost their entire report, and lost it
silently -- the page returned 200 and thanked them. Windows is most of this
audience, so most of the data we would ever have collected was going to
disappear this way.

Now `rundll32 url.dll,FileProtocolHandler`, which hands the URL to the shell's
protocol handler with no command interpreter anywhere in the path, so nothing
re-parses it. `explorer.exe` also opens URLs and was rejected: it returns a
non-zero exit status even on success, which would make the caller believe it
had failed and fall through.

The relay now also refuses to thank anyone for a version-only arrival, since an
older binary keeps producing them and a URL pasted into a shell unquoted does
the same thing.

Version to 0.2.1.
2026-09-02 15:50:47 +03:00
Wanjohi
a244c9213c release(nesdoctor): point the installers at v0.2.0
Flipped after publishing, so there was never a window where the live installer
named a tag that did not exist.
2026-09-02 15:06:17 +03:00
Wanjohi
3544f857ff feat(nesdoctor): read the display, and offer early access
Two things, both of which every response collected without them is a response
we cannot go back for -- since a submission carries nothing that identifies
anyone, there is no second chance to ask.

## The display and decode probe

This is the readable half of the client capability probe our build order
already specifies -- GPU, decoder, display -- and its stated purpose is
attribution: told only that a stream "looks bad", the cheapest available
explanation is that our reconstruction ratio was too aggressive, so without
this we would lower the ratio and pay density for somebody else's window
manager.

  presentation path   x11 · bspwm
  eDP-1               1920x1200 @ 60 Hz, 8-bit
  Vulkan decode       h264, h265
  VA-API decode       h264, h265, vp9

Session type, compositor, and whether we are under XWayland -- which is exactly
the objection raised against our own A/B rounds, now recorded automatically
rather than argued about. A bare window manager sets none of the XDG variables,
so bspwm and thirteen others are matched from the process list; a report that
cannot name bspwm cannot answer the challenge that named it.

From EDID, parsed here rather than shelled out to: native mode, refresh,
colour bit depth, which HDR transfer functions the panel accepts, BT.2020
colorimetry, and 4:2:0 chroma. The CTA-861 extension blocks are where all the
colour capability lives -- base EDID says nothing about any of it.

That decides real choices. Whether 10-bit is worth sending, whether BT.2020 is
worth encoding, which codec to reach for. Every one of those has so far been
decided against the one panel in this room -- which this now reports as 8-bit,
meaning the 10-bit work cannot be validated on it at all.

EDID is untrusted binary from a device node. Every read is bounds-checked and
every field optional: monitors ship broken EDIDs and docks synthesise worse
ones, so a bad panel costs one field rather than the run. Three tests, one of
which truncates the block mid-extension and asserts that no colour capability
is invented. The colorimetry byte offset was wrong the first time and the test
caught it, which is the argument for the test.

Present mode, tearing and fractional scaling need a real window and swapchain,
so they are absent and said to be absent rather than guessed.

## Early access

An optional email, asked last, after the verdict has printed -- so nobody types
an address before seeing what this said about their machine. Blank skips it.

The offer branches on the verdict, because telling someone with no KVM and a
grade-F uplink that we liked what their machine can do is a lie, and this
program's only real asset is that it does not flatter anyone. A host-capable
machine gets the host offer; everyone else gets early access as a player, which
is a true offer too.

It is the one identifying thing collected here, so: it appears in the
pre-submit disclosure with everything else, and the promise elsewhere had to be
reworded -- "no username, no identifiers" stopped being true the moment this
field existed, and leaving the old line standing would have been the dishonest
option. Validation is deliberately loose; arguing with somebody about their own
address over a regex loses the response outright.

Version to 0.2.0.
2026-09-02 14:58:40 +03:00
Wanjohi
c2c3bb5ba0 feat(nesdoctor): ask about the other Linux box while we still can
Our first respondent answered `otherlinux=yes` -- they have a Linux machine --
and their Windows desktop came back CLIENT, which is a dead end. The Linux box
is the result we have none of.

There is no way to ask them. A submission carries no hostname, no address and
no name, by design, so the moment the program exits whoever ran it is anonymous
and unreachable. That is the correct trade and it is not being changed. What
was wrong is that the program knew about the other machine *while they were
still reading* and said nothing.

So when someone answers that they have, or could set up, a Linux machine and
this one cannot host, the run now ends by asking for it -- with the command,
and with the reason stated plainly: nearly every result is a client, a host has
to be Linux with KVM, and one run over there is worth more than a hundred of
these. Including why we cannot follow up, since that is the honest argument for
doing it now.

The nudge is suppressed when the machine already qualifies as a host, because
then it is noise.
2026-09-02 14:46:05 +03:00
Wanjohi
b055e40546 fix(nesdoctor): the first Windows submission recorded a virtual display adapter
Our first response, and the GPU field is wrong:

  gpu=Parsec%20Virtual%20Display%20Adapter&gpus=2

Parsec installs an indirect display driver, it enumerated first out of
`Win32_VideoController`, and the primary was taken as the first entry -- so the
real card on that machine is gone. `gpus=2` is the only reason we can tell
anything was lost, and it cannot tell us what.

This is not an edge case for this audience. Parsec, Sunshine, Moonlight,
TeamViewer and Splashtop all install one, and a cloud-gaming community is
precisely the population that has one already. A recorded gpu_model is a hard
requirement for a host; a virtual display driver satisfies it in name only.

Three changes.

Adapters are now sorted so real hardware is first, by two keys: whether the
name matches a known software adapter, then whether a vendor could be
identified at all. Order is the only signal the rest of the program has for
which GPU is "the" GPU.

The vendor comes from `AdapterCompatibility` rather than from
pattern-matching the marketing name. An "AMD Radeon" string is easy; an
OEM-rebadged one is not.

And every adapter name is now sent, not only the count. `gpus=2` told us
something had been lost and not what, which is the kind of field that wastes a
response we cannot ask again.

The known-software-adapter list has unit tests, on all platforms -- it is a
list of strings and it will need extending, so it should fail loudly rather
than quietly stop matching.

Version to 0.1.2.

For the record, what that submission got right, because none of it needed
asking: 50% of 165 Steam launch records fall in five hours of twenty-four
(21:00-01:59) against five records across the whole of 07:00-13:59. That is
0017's evening peak, measured, from one person's own files. 140 of the 165
records are titles no longer installed -- restricting the histogram to
installed titles, as review suggested, would have left 25 samples and lost the
shape entirely.
2026-09-02 14:42:51 +03:00
Wanjohi
d6c5eafe9e release(nesdoctor): point the installers at v0.1.1
v0.1.1 is published, so the pin moves. Flipped after publishing rather than
with the version bump, so there was never a moment where the live installer
pointed at a tag that did not exist yet.

v0.1.0's added-latency grade cannot be trusted -- it measured bloat against a
median that goes unstable on a bimodally routed link -- so nothing should be
installing it.
2026-09-02 13:39:45 +03:00
Wanjohi
f0e65b9738 fix(nesdoctor): bloat was measured against the median, and could grade a bad line A
Found by running the published one-liner, which is the only reason it was
found: `up=34Mbps rtt=188ms rttload=181ms bloat=+0ms grade=A` on a connection
that measured +115 ms and grade F three hours earlier.

The idle baseline was the median of twelve handshakes to one anycast address.
On the development connection those twelve came back **bimodal**:

    [56, 56, 57, 59, 60, 176, 177, 179, 179, 179, 182, 368]
    min 56   p50 177   max 368   spread 312 ms on an *idle* link

Two points of presence answering. The median therefore lands wherever the split
happens to fall, and when it lands high the loaded median comes in *below* it,
the difference goes negative, `.max(0.0)` clamps it to zero, and the headline
number reports grade A.

That is the one error direction that cannot be tolerated here. A tool whose
whole pitch is a number nobody else shows you has no business saying "your line
is fine" about a line that is not.

Bloat is now measured against the **minimum**. Queueing is delay above the
floor the path can achieve, so the floor is the baseline -- which is also how
every bufferbloat test does it. Twenty samples rather than twelve.

The distance verdict deliberately keeps the **median**, because it asks a
different question. Bloat asks how much queueing is added, so its baseline is
the best case. HOST-READY-LOCAL asks what a player will actually see, so it
takes the typical case: on a link that is bimodal between 56 ms and 180 ms, the
floor would call it near when half of all connections are not.

Both are now reported, and the gap between them is itself the finding -- a
floor of 55 ms against a typical of 180 ms says the route is the problem, which
no single number could have said.

Verified on the same connection: floor 55, typical 180, loaded 95, **+39 ms,
grade C**, verdict HOST-NET. Defensible, and no longer flattering.

Version to 0.1.1. Submissions carry it, so any row with `v=0.1.0` has a grade
that cannot be trusted.
2026-09-02 13:34:00 +03:00
Wanjohi
166c1e9c24 fix(nesdoctor): pin the release tag; releases/latest is a time bomb here
Both installers fetched from `releases/latest/download`, which is wrong in this
repository specifically: it ships product releases as well as this tool, so
`latest` is whichever release went out most recently regardless of what it
contains.

Measured before publishing anything: `releases/latest` resolved to `v0.2.0`,
from May 2024, and the asset URL 404'd. Publishing nesdoctor-v0.1.0 would have
papered over it by becoming the newest release -- and then the first product
release after it would have moved `latest` again and broken every
`curl | sh` in the announcement, silently, for everyone, with the tool itself
untouched and nothing to point at.

Now pinned to a tag that is bumped when a nesdoctor release is cut, with
`NESDOCTOR_TAG` still overriding for testing. The download failure message also
now names the tag and says outright that an unpublished tag is the likely
cause, since that is the one mistake this arrangement invites.
2026-09-02 13:23:13 +03:00
Wanjohi
d01e4a180e fix: nesdoctor.json was committed to a public repository (#312)
My mistake, in a76cb2a, now merged to dev. nesdoctor writes its report
next to wherever it is run, and during development that is the
repository root. `git add -A` took it.

What the committed file exposed, all of it the operator's own machine:

  - two home paths, /home/<user>/.steam/steam and .local/share/Steam
  - one installed game title
  - mount points
  - the answers given to a test run of the questionnaire

Low severity -- the username is already public and matches the account,
and one game title is not much -- but it is exactly the class of thing
this tool exists to be careful with, and shipping it in the repository
that asks strangers to trust the tool is worse than the content.

Removed from HEAD and added to .gitignore, along with the wildcard form.
The `--json` default keeps its name on purpose: an ignore rule cannot
protect a default called something generic like report.json, and
renaming it would leave the old name unguarded for anyone who scripted
against it.

**History is not cleaned by this commit.** The file is in pushed history
on a public repository, which per our own rule about published history
means it should be treated as permanent rather than as something a
revert fixes. Rewriting dev is possible and is a judgement call about
whether the content above is worth the disruption; it is not mine to
make unilaterally.
2026-09-02 13:00:03 +03:00
Wanjohi
79f1732a14 feat(nesdoctor): a host readiness checker that measures instead of asking (#310)
The first executable form of our host requirements. Until now a machine
was qualified by a human reading a table of hard requirements — and a
requirement that nothing can check is one that is silently optional.

It also replaces a form. Everything we wanted from a prospective host is
measurable, and most of it **cannot be answered honestly by a human
anyway**: almost nobody knows their real upstream, and essentially
nobody has ever seen their own bufferbloat figure. What's left for the
questions is only what a machine cannot know — intent, and what someone
already pays.

## What it does

```
nesdoctor
```

- **Checks every hard requirement**: `/dev/kvm`, an AMD or Intel GPU
with a DRM render node, `VK_KHR_video_encode_queue` plus a codec,
`virglrenderer`, the two stores, the `io` cgroup controller,
`virtiofsd`. Pass / fail / **unknown**, and unknown is never collapsed
into fail — a machine we could not ask is not a machine that failed, and
losing a capable host to a missing `lspci` is the failure mode that
matters.
- **Measures upstream and, the point of the whole thing, added latency
under load.** Grade bands come from the frame budget rather than
convention: the network allowance is ~40 ms because render, encode,
decode, display and jitter buffer have already spent ~58 ms.
- **Reads Steam, only with an explicit yes**, for library size and shape
plus an hour-of-day histogram of launches — one sample per title, which
is a real distribution obtained without asking anybody anything.
- **Asks at most five questions**, branched on what was found, all
skippable.

## No server

Nothing is uploaded and no telemetry endpoint exists. The network test
talks to Cloudflare's public speed-test sink and to `1.1.1.1`, neither
of which is ours. The output is a line on the terminal that the person
may choose to paste.

The shareable line carries **no hostname, IP, username, game title or
path** — a size band rather than a size, hours rather than dates. The
long version, which does include titles and paths, stays in a local JSON
file the person is told the path of.

That is a property of the design and not a promise about our intentions:
there is nothing to switch on later.

```
nesdoctor 0.1.0 | linux/x86_64 | gpu=AMD Barcelo | cpu=12t ram=13G |
kvm=y venc=y zfs=n boxfs=n io=y | up=28Mbps rtt=179ms bloat=+19ms grade=B |
disk=91G | edge=KE/JNB | steam=1 titles/<100G | plays=20-03h n=74 |
role=- share=- pays=- | HOST-READY-LOCAL
```

## Five bugs found by running it, every one of which would have produced
wrong data

- **`vulkaninfo --summary` lists ZERO `VK_KHR_video` entries** where
full `vulkaninfo` lists five on the same machine. Preferring the summary
reported "not advertised" on a card that advertises it — a false
negative on the check most likely to disqualify a host.
- **btrfs subvolumes counted as separate disks**: `/`, `/home` and
`/srv` each reporting 91 GiB of one 91 GiB device. Now deduped by
backing device, which the two-stores check needs anyway since it wants
*separate devices*.
- **Proton and the Steam Linux Runtimes are installed like games and are
not games.** Five of eight entries on the test machine, so the title
count was 5× too high and the library-shape question was corrupted.
- **`--quiet` printed the whole questionnaire** before its summary line,
breaking the one thing `--quiet` promises. Prompts are now skipped when
output is quiet or stdin is not a terminal — and a pipe is explicitly
*not* treated as consent to read a Steam library, unlike `--yes`.
- Boot history was reporting `13.2 h/day` off **two days** of history.
Under a three-day span it now reports the span and no rate.

## One finding, now encoded as a verdict

The development connection measures **179 ms idle RTT, served from
Johannesburg**. That machine passes every other check and cannot host
for a European player, because it is distance and no upgrade shortens
it.

`HOST-READY-LOCAL` exists for exactly that case, and the wording is
deliberate:

> Every requirement passes and your uplink queues cleanly. But the idle
round trip to the nearest major network is already most of the latency
budget, and that is distance rather than a fault: no upgrade shortens
it. So this machine is a good host for people on your side of the world
and cannot be one for anybody else. **If you are somewhere without a
cloud gaming edge, that is not a consolation prize — it is the only way
anyone there gets a playable stream.**

## CI

- **`ci.yml` gains a `nesdoctor` job** — fmt, `clippy -D warnings`,
test, one real run. Scoped to this member deliberately: the rest of the
Rust half has never been under CI, so `--workspace` would turn every PR
red for unrelated reasons. Widen it one member at a time.
- **`release-nesdoctor.yml`** builds four targets on tag `nesdoctor-v*`
— x86_64 linux-musl, x86_64 windows-msvc, aarch64 and x86_64 macOS —
with `SHA256SUMS`. musl rather than glibc so one Linux binary runs on
every distro.

The step that justifies the workflow **runs the binary it just built,
network included**. `ring` under rustls resolves root certificates
through the host trust store, so a static musl build can compile cleanly
and then fail TLS on the machine it ships to — breaking the network
test, silently, and only for other people. The step fails the build if
the summary line comes back `net=unmeasured`.

## Dependencies

Four: `anyhow`, `clap`, `serde`, `ureq`. The VDF parser, every platform
probe and the text wrapping are in-tree. A binary handed to strangers
has a dependency tree that is part of its interface, so anything that
could be done with `std` is.

4 MB release binary.

## What it deliberately does not claim

- **A pass is not a promise.** Every check is a *necessary* condition,
and nothing here runs under load — a machine that passes can still fail
on block I/O.
- **The encode extension being advertised is not proof the path works.**
We have had a correct extension list over a broken path before, so that
row says so.
- **Whether `libvirglrenderer` carries the native-context patches cannot
be determined from outside**, so that row reports presence only and
stays `unknown` rather than `pass`.










<!-- greptile_comment -->

<h3>Greptile Summary</h3>

The PR adds the nesdoctor host-readiness executable, local Steam
analysis, network measurement, installers, CI validation, and
multi-platform release packaging. Two attempted correctness fixes remain
incomplete:
- physical disk deduplication does not resolve common device-mapper
source names before comparing backing devices
- unknown historical Steam appids can still be counted as game launches
without passing runtime filtering

<h3>Confidence Score: 3/5</h3>

The PR is not yet safe to merge because shared LVM-backed stores can be
reported as physically independent and unknown Steam tools can still be
reported as game launches.

The new disk resolver fails open for common device-mapper names,
preserving a false host-readiness verdict, while Steam history still
counts absent appids without determining whether they are games or
runtime tools.

**Files Needing Attention:** apps/nesdoctor/src/sys.rs,
apps/nesdoctor/src/hostreq.rs, apps/nesdoctor/src/steam.rs

<h3>Important Files Changed</h3>




| Filename | Overview |
|----------|----------|
| apps/nesdoctor/src/sys.rs | Adds system and disk discovery, but
unresolved device-mapper names undermine physical-backing comparisons. |
| apps/nesdoctor/src/hostreq.rs | Implements host requirement verdicts
and uses physical-device sets that can falsely classify shared LVM
backing as independent. |
| apps/nesdoctor/src/steam.rs | Adds manifest and launch-history
analysis, but unknown appids bypass runtime classification and
contaminate launch metrics. |
| apps/nesdoctor/src/net.rs | Adds bounded upload-based upstream and
bufferbloat measurement; the previously reported unbounded request path
is addressed. |
| .github/workflows/release-nesdoctor.yml | Builds, smoke-tests,
packages, checksums, and publishes the four release targets. |
| .github/workflows/ci.yml | Adds focused formatting, linting, testing,
and offline execution checks for nesdoctor. |


<h3>Flowchart</h3>

```mermaid
%%{init: {'theme': 'neutral'}}%%
flowchart LR
  Run[nesdoctor] --> Host[Host requirement probes]
  Run --> Net[Upload and latency measurement]
  Run --> Consent{Steam consent}
  Consent -->|yes| Steam[Installed manifests and LastPlayed records]
  Host --> Physical[Resolve filesystem sources to physical devices]
  Physical --> Verdict[Host readiness verdict]
  Net --> Report[Detailed JSON and shareable summary]
  Steam --> Report
  Verdict --> Report
```

<details><summary>Prompt To Fix All With AI</summary>

`````markdown
### Issue 1
apps/nesdoctor/src/sys.rs:369-374
**Mapper devices remain unresolved**

When root and box-store filesystems are separate LVM or dm-crypt mappings on the same physical disk, `df` supplies `/dev/mapper/...` names that do not exist under `/sys/class/block`. This branch returns those unrelated logical names unchanged, so the overlap check passes stores that still share one physical I/O queue.

### Issue 2
apps/nesdoctor/src/steam.rs:247-250
**Unknown appids bypass runtime filtering**

If `localconfig.vdf` retains `LastPlayed` data for an uninstalled Proton build, Steam runtime, or other non-game tool, its appid is absent from the installed-manifest map and this branch treats it as an uninstalled game. The tool activity then changes the launch histogram, peak window, and shareable `n` value.

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.
`````

</details>

<sub>Reviews (5): Last reviewed commit: ["fix(nesdoctor): three valid P1
findings
..."](7afc8929a6)
| [Re-trigger
Greptile](https://app.greptile.com/api/retrigger?id=59231233)</sub>

> Greptile also left **2 inline comments** on this PR.

<!-- /greptile_comment -->
2026-09-02 12:52:47 +03:00
Wanjohi
bf2c9632f5 fix(build): nescapture's release profile was being ignored
`apps/nescapture/Cargo.toml` carried `[profile.release]` with `opt-level = 3`
and `lto = "thin"`. Cargo only reads `[profile.*]` from the workspace root and
warns about a member that writes one, so `cargo build --release --workspace`
— which is what build/Dockerfile runs — ignored it. The Vulkan capture layer
that ends up in the guest image was built at the default release profile, and
the warning saying so scrolled past on every build.

`opt-level = 3` is already the release default, so `lto = "thin"` is the only
part that was actually lost. It moves to the workspace root, where Cargo
reads it, and now applies to all five members — the same rule as
`[workspace.dependencies]` right above it: what must not differ between
members is stated once.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-01 16:33:00 +03:00
DatCaptainHorse
84c97156f8 fix: ticket formatting 2026-08-31 17:31:23 +03:00
DatCaptainHorse
d9cdf60039 fix: wrong neshub version, formatting 2026-08-31 17:24:00 +03:00
Wanjohi
6ea241c910 docs: the guest READMEs described code that is gone
All three came across with their standalone repos and none had been
touched since the transport changed.

nescapture claimed to packetize with Reed-Solomon FEC and stream RTP/UDP
to a Moonlight client. It sends encoded frames to neshub over a Unix
socket. packetizer.rs, control.rs and shard_batch.rs do not exist, and
neither does ARCHITECTURE.md. Nine documented environment variables are
not read by anything -- NESCAPTURE_RTP_HOST was listed as *required* --
and five that are read were undocumented, including the one that says
where frames go. Someone following that quick start would have set a
required variable that does nothing and got no output.

Documented the three sockets, since nescapture binds one and connects to
two and that was written down nowhere.

neswire documented --rtp-addr and --channels against a gstreamer pipeline.
It has --ipc-path, --channels, --packet-duration-ms and
--bitrate-per-channel, and hub-stub exists precisely so it can be tested
without a hub. Kept the reason hub-stub decodes rather than counts bytes:
Opus codes silence at ~3 kbps, so a dead sink looks alive on a meter.

nescope was mostly right. It called the capture layer "vkcapture", listed
seven of fifteen modules and five of nine flags, and its TODO list was
three items that neshub and nescapture now do. Added compositor mode,
which is the shape a real session uses and was undocumented.

All three licence lines were "TBD" or "See project repository".
2026-08-26 19:09:53 +03:00
Wanjohi
40b80d4b14 refactor: the hub is neshub everywhere
Six comments across nescope, neswire and nescapture still named
nestri-guest-hub, plus one still naming nestri-protocol. Deferred from the
import commits so the rename would read as one change rather than six
unexplained edits inside otherwise-verbatim trees.

Comments only. Realigned an ASCII box in encode.rs that the shorter name
knocked crooked.
2026-08-26 19:02:58 +03:00
Wanjohi
3c574af2ea feat(neshub): open the media hub
The component nescapture, neswire and nescope all talk to, and the only
thing in the guest that speaks to the client. It muxes their frames into
one iroh QUIC endpoint and fans input back.

Renamed from nestri-guest-hub, which named a location rather than a job.

Four files came across unchanged -- session.rs, ipc_listener.rs,
ticket.rs, screenshot.rs. Between them they mention Steam zero times, and
they import only nesprotocol's open modules; the control feature carrying
LaunchIntent and SteamIdentity is used exclusively by the three files that
are staying closed. The two clusters shared a main.rs and nothing else, so
there was no untangling to do -- only a cut.

main.rs loses --proton, --steamclient-so, --root and the game uid/gid,
and no longer ends by handing the process to a controller. It runs until
it is stopped. Deciding when the box is finished belongs to nesinit.

The ticket used to leave via that controller, so it needed a new way out:
neshub now serves it on a socket and nesinit dials for it. Listening
rather than dialling matches every other socket here and means no startup
ordering to get wrong.

Three tests, where there were none -- the ticket crosses a process
boundary as text now, so a round trip that drops a field would otherwise
be found by whoever cannot connect.
2026-08-26 18:54:09 +03:00
Wanjohi
77d4782c86 docs: split CLAUDE.md by scope, and say what this repo is
CLAUDE.md was 1,324 lines and all of it was about the TypeScript half, written
before there was another half. Every line of it loaded on every turn regardless
of what was being worked on, which is a real cost paid constantly for context
that is usually irrelevant.

Split by where it applies, so each guide loads when you are in the directory it
describes:

  packages/core/CLAUDE.md   694   domain modules, fn(), actor, errors, auth
  apps/api/CLAUDE.md        284   routes, registration, error flow
  docs/alchemy.md           345   stages, bindings, secrets, the CLI
  CLAUDE.md                  72   the repo, both toolchains, two hard rules

Nothing was rewritten or dropped — the three files are the original text,
verified identical after the split. What the root file now carries is only what
is true repo-wide: the layout, the commands, where the detail lives, and the two
rules that are not style preferences. One of those is that nothing closed may
enter this repo, which is here because it has already been caught once.

The README described a streaming platform in four bullets and did not mention
that half the repository is Rust that runs inside a virtual machine. It now says
what each component does, why a micro-VM rather than a container, what is
deliberately absent, and what decides whether a thing is open — data is, capacity
is not.

It also says plainly that this is mid-rewrite and the docs are behind. Someone
arriving at a repo whose documentation does not match its tree should be told
that by the README rather than discover it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-26 18:23:42 +03:00
Wanjohi
6164e0c636 feat(nescapture): open the capture layer
A Vulkan implicit layer that captures frames from inside the workload's own
process and encodes them on the GPU they were drawn on. Fourth and last of this
batch, imported as a tree from `nestrilabs/nescapture` on the same terms.

Filed under `apps/` rather than `crates/` despite building a cdylib. The rule
here is what a thing *is*, not what it compiles to: this is a finished artefact
that gets installed into an image beside its layer manifest, not a library
another crate in this tree depends on. `crates/` is for the latter, and putting
this there would make the distinction useless the first time someone looked.

Wired to the workspace, `nesprotocol` by path. Its description named the
transport component; that reads better as what it actually is — where the frames
go — so it says that instead.

Whole workspace builds and tests: 21 across four members.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-26 18:04:02 +03:00
Wanjohi
06b844b961 feat(neswire): open the audio server
Captures a session's audio and hands it to the transport over a local socket.
Third component in, imported as a tree from `nestrilabs/neswire` on the same
terms as the previous two.

Wired to the workspace, `nesprotocol` by path. 4 tests pass.

`bin/hub-stub.rs` is a stand-in for the transport's listener, which is what lets
this be developed and tested without the rest of a box existing. It names the
transport by its old name, and is left for the rename commit along with the two
in the compositor.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-26 18:02:38 +03:00