Unix is my IDE, vim is my editor.

Yep. When everything about your IDE (unix) is programmable, it makes “modern” IDEs seem quite quaint.

Personally I make extensive use of https://f1bonacc1.github.io/process-compose/launcher/ to orchestrate a bunch of different shell scripts that trigger based on file changes (recompiling, restarting servers, re-running tests, etc.). Vim just reads from files as needed. It’s lightning fast, no bloat, and a world-class editing experience.