I’m using bun for the main process. Bun runs a zig binary which can call objc/c methods. So the “main native application thread” is technically the zig process.

Then there’s all kinds of fancy rpc between bun and zig and between bun and browser contexts.

Ah, cool, that’s essentially what I’m doing too. Rust binary does the system interactions. I’m just using a pretty simple json RPC over stdio though.