Firstly, ensure git is installed ***system-wide***, not just your user packages, since this is not hosted on github, gitlab, etc... It will ***not*** work with git installed in your user packages. If you are on NixOS, you must first add git to your system packages, rebuild and switch.
Afterwards, you can add it to your user or system or user packages by referring to `suyu.packages.YOURPLATFORM.suyu` or `suyu.packages.YOURPLATFORM.default` in your flake outputs.
Feel free to submit a PR after you have tested it works on untested platforms or unsupported ones. I do not own any of the other devices and I cannot guarantee it will work on those.