:neocat_polyproto: polyproto federation protocol (@polyproto)

also took it upon myself to rewrite the polyproto-dot-org nix flake in a painful few hours of scouring the internet for any sort of documentation for how to package and build yarn projects. oh, and treefmt! but treefmt, prettier and co. are luckily documented much better :)

(not an april fool's post /gen)