services/yggdrasil: init

[Rubikoid]

Add the yggdrasil module.

It's based on nixpkgs upstream yggdrasil module + launchd service from brew.

[Samasaur1]

I'm a little leery of putting the config file and example path under /run (as opposed to /etc or somewhere else), but this looks good to me

[Samasaur1]

Sorry this took a couple days, the notification got buried. I don't have merge permissions anyway, so you'll be waiting for that anyway

[Rubikoid]

I'm a little leery of putting the config file and example path under /run (as opposed to /etc or somewhere else), but this looks good to me

How it seems to me, /etc is for something being static / symlinked to nix store, while /run is for something being generated.

Anyway, /run/yggdrasil also used for yggdrasil.sock controlling socket, so dropping config here quite logical.