Oleks
cb369d3be3
Adds a postPatch step that applies metamcp-observability.patch to
the upstream metatool-ai/metamcp v2.4.22 source before pnpm build.
The patch:
* Drops in apps/backend/src/lib/observability/{trace,metrics}.ts:
AsyncLocalStorage trace context + parser/synthesizer per the W3C
contract (Specs/mcp-request-id), plus a hand-rolled
Counter/Histogram so we don't have to touch pnpm-lock.yaml /
pnpmDeps hash (no new npm dependency).
* Wires a top-level express middleware in apps/backend/src/index.ts
that binds trace context, observes mcp_hop_duration_seconds on
response close, and counts mcp_cancellation_total when the
downstream client hangs up mid-response.
* Adds /metrics to the Express app and last-resort process traps
(unhandledRejection / uncaughtException) feeding
mcp_uncaught_throw_total — the smoking-gun signal from
cluster#44.
* Patches process-managed-transport.send() to inject
params._meta.traceparent on every outbound JSON-RPC bound for a
stdio child (MCP _meta convention, Specs/mcp-request-id).
Retire when this lands upstream.
flake-hub
Personal Nix flake hub — custom packages and overlays
Overview
Personal Nix flake hub for publishing custom packages and overlays. Provides packages for x86_64-linux and aarch64-linux.
Build
nix build .#<package-name>
Antigravity
google-antigravity (FHS-wrapped) and google-antigravity-no-fhs are
re-exposed from
jacopone/antigravity-nix
(MIT). Upstream auto-updates daily via its own GitHub Actions; we just bump
the flake input and CI caches the build to attic.
When the in-app "new version available" banner appears (or you just want to refresh the pin):
just antigravity-update # nix flake update antigravity-nix
git commit -am "antigravity: bump"
git push # CI rebuilds and pushes to attic
Then, on the consumer:
cd ~/projects/servers/emmett
nix flake update oleks-nixpkgs
nix run .#deploy