There is no faster way to grow as an engineer than spending an evening with a debugger and a project you depend on every day. Here are the libraries that taught us the most and the exact commits worth bookmarking.
After two years of running a custom message broker we finally pulled the plug and migrated everything to NATS JetStream. The migration took six weeks of careful planning, three weekends of late-night cutovers and one production incident that we are still apologising for.
Five years ago this would have been a controversial post. Today we have battle-tested operators, decent storage classes and a community that has finally agreed on backup tooling. Here is the stack we landed on for a fleet of around forty clusters.
Sometimes the right answer is not Hugo or Astro but a file you can read in one sitting. We walked through every line in a guild lunch and somehow shipped a new docs site by the end of the day.
Internal tools tend to rot the moment they leave the founding team. We rebuilt our admin from scratch around three principles: every action should be auditable, nothing should require a tribal-knowledge runbook, and there should be exactly one button that resolves the on-call page.