Syndicate Nix flake
Add as a Nix channel.
$ doas nix-channel --add https://git.syndicate-lang.org/ehmry/syndicate-flake/archive/trunk.tar.gz syndicate
To add to your local flake registry:
$ nix registry add syndicate "git+https://git.syndicate-lang.org/ehmry/syndicate-flake"