setup-node never consults `node` on PATH; its only fast path is a probe of
/opt/hostedtoolcache, which the ephemeral act_runner job containers always
miss, so every job paid a ~50 MB Node download. docker/Dockerfile extends the
runner's default catthehacker/act image with the Node distribution overlaid at
the exact tool-cache layout, so setup-node finds 26.8.2 and skips the fetch
while node-version-file, cache: npm and registry-url keep working unchanged.
Image layers dedupe against the base the host already pulled and prune via
normal docker hygiene — the cleanup story a host bind of /opt/hostedtoolcache
lacks. To make the bake deterministic, .node-version is pinned to the exact
26.8.2 the image carries; scripts/runner-image.sh guards that coupling and
builds/pushes the tag the three node jobs now reference via container.image.
Ops follow-up (outside the repo): build once with
`npm run build:runner-image -- --push` on a machine with registry creds. If
the package is private, the runner needs container registry credentials in
its config.
- Add .node-version (single line: '26') so fnm/nvm/volta/mise and the
VS Code Node version manager extension auto-switch when entering the
project directory
- engines.node in package.json: bump from '>=22.6' to '>=26' (npm-side
install-time declaration)
- Drop --experimental-strip-types flag from node --test invocations:
Node 26 has --strip-types unflagged
- .github/workflows/ci.yml: switch from hard-coded node-version: 24 to
node-version-file: .node-version in both build and publish jobs so CI
follows the .node-version file (single source of truth)
- .npmignore: add .node-version (developer-tool file, not for publish)
- .vscode/settings.json: pin js/ts.tsdk.path to node_modules/typescript/lib
so the editor uses the project's TS 7, not a different global install
- .vscode/extensions.json: swap ms-vscode.vscode-typescript-next for
typescriptteam.native-preview (the official TS team extension that
ships nightly TS support, including TS 7)
- cspell: add 'esbenp' and 'typescriptteam' to dictionary
- package-lock.json: regenerated for engines.node >=26
tsconfig.json target/lib are unchanged: es2024 is the highest stable ES
target TS 7.0.2 ships, and Node 26 supports all ES2024 features natively.
tmu