beta.2
A custom set of nixpkgs (nixos-nixtcloud.tar.gz), copied from nixos-unstable, and with Holesail added is provided here.
I was using nixos-24.05 but recently it stopped working for some reason.
Also, if you use only windows, you can download the .zst image provided here, extract it using peazip for example and then burn the .img file to sdcard using BalenaEtcher.