After Yuzu got shut down I'm not sure what this leaves people with for switch emulators. I'm going to try and find archives and will update the post when I do.
Last windows build: archive.org
Slightly older, but has linux and mac builds archive.org
Okay there we go, a github mirror: https://git.naxdy.org/Mirror/Ryujinx
If anyone ever digs up the source, hopefully they push it to something like https://radicle.xyz/ so it can't be taken down
The source is here! I'm not familiar with radicle, but if you are uploading seems like a good idea.
Nice! I've downloaded it just in case and I'll probably throw it up on Radicle later unless someone beats me to it