... building OptiSchema Slim : a local-first, open-source AI tool for PostgreSQL performance . I made it because my Postgres tuning workflow kept being reactive and messy, you notice slowness late, stare at EXPLAIN, guess an index, apply it, and only then find out if it helped. I wanted something that stays private (no data egress), but still gives practical guidance. It includes a Health Doctor scan (bloat, unused indexes, slow/high-impact queries), plus what-if index testing before you touch schema ...