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.
I am a first-year CS student and I recently made a decision that most people around me think is unnecessary — I am building a relational database storage engine from scratch in raw C++, with zero STL dependency. No std::vector. No std::string. No iostream. Nothing. The Problem With How I Was Learning For a long time I was writing code that worked but I had no idea why it worked. I used abstraction