# from `niv show nixpkgs` # nixops modify -d rpi nixops.nix -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/45e01e508a792077c77067467e07bce757932fb6.tar.gz { network.enableRollback = true; rpi = { imports = [ ./nixos-with-fs.nix ]; deployment.targetHost = "192.168.2.177"; }; }