State that survives a docker compose down is one of those things you don't think about, until your test suite needs it, your local dev needs it, and your CI pipeline absolutely doesn't. LocalStack handles persistence with one switch (PERSISTENCE=1) and it's a Pro-only feature. Floci ships four storage modes, all free, all in core, with per-service overrides. Pick the right tradeoff for the job.
When you run Mirror and Socket.IO in the same Unity project, you immediately hit a translation problem. Mirror identifies players by netId — a uint assigned at spawn time by the Mirror host. Socket.IO identifies players by playerId — a string assigned by your Node.js backend when they connect. These two IDs have nothing to do with each other. They're generated by different systems at different tim