Tooling
A boring monorepo layout that has survived three years and 40 packages
Three top-level folders, one dependency rule and pnpm filters for CI. The monorepo structure we keep coming back to, and what we stopped doing.
Topic · 3 stories
Node.js
The Node runtime in production: memory, the event loop, testing and the tooling around TypeScript services.
Testing
TIL: our trial countdown was wrong one day a year, and only in Europe
A date test that passed for months failed on a CI runner in Berlin. What we learned about DST, local midnight and testing code that reads the clock.
Node.js
40 MB an hour: the Node memory leak hiding behind setMaxListeners(0)
A postmortem of a slow leak in a Node ingest service: how two heap snapshots, one retainer chain and a silenced warning led us to the bug.