Trying Ty for my LSP in Emacs

Astral announced Ty Beta today, the new Rust-based Python type checker. I've been using Ruff and uv for a while now, and they've consistently delivered on the "rewrite Python tooling in Rust to make it absurdly fast" promise. So when they claimed Ty is 10-80x faster than Pyright for incremental checking, I had to try it. I've been using basedpyright with Eglot and it works, but I'd be lying if I…