Roo code in vs code, and qwen coder in lm studio is a decent local only combo.

Strongly seconding Roo Code. I am using it in VSCodium and it's the perfect partner for a fully local coding workflow (nearly 100% open-source too so no vendor is going to pry it from my hand, "ever").

Qwen Coder 30B is my main driver in this configuration and in my experience is quite capable. It runs at 80 tok/s on my M3 Max and I'm able to use it for about 30-50% of my coding tasks, the most menial ones. I am exploring ways to RL its approach to coding so it fits my style a bit more and it's a very exciting prospect whenever I manage to figure it out.

The missing link is autocomplete since Roo only solves the agent part. Continue.dev does a decent job at that but you really want to pair it with a high performance, large context model (so it fits multiple code sections + your recent changes + context about the repo and gives fast suggestions) and that doesn't seem feasible or enjoyable yet in a fully local setup.