Add a github actions runner file

[bschwind]

No description provided.

[strohel]

Oh thanks! I see you may be still tweaking this, so some interim notes.

[strohel]

Maybe we don't need to ignore any tags?

[strohel]

It's common to have either on: push or on: pull_request. Having both causes very duplicate CI runs most of the time. We're usually using push.

[bschwind]

Yeah I was just copying our innernet workflow, but my preferred setup is like so:

on:
  push:
    branches:
      - main
  pull_request:

I'll change it to that.

[bschwind]

Unfortunately this seems to be failing on a build of portaudio on macos. It doesn't fail on my local mac machine because a different target architecture is being set (aarch64-apple-darwin24 for me, arm-apple-darwin23 for this CI), and possibly a different version of a C compiler.

The portaudio build seems to be passing -Werror and while that's fine and dandy for them as a project, ideally we would not pass that flag when building it as a dependency.

I looked deeper and the portaudio crate is still pulling the portaudio source from an HTTP server unfortunately. Maybe we should fork it and have it include the portaudio source as a submodule instead...