# Some module for Nixos Modules can be imported with `fetchurl` like this: ``` imports = [ ./hardware-configuration.nix (builtins.fetchurl { url = "https://git.mineau.eu/histausse/base-nix-vm/raw/branch/master/base.nix"; sha256 = "0r7rj0in3f5m171sx0savbynijcj3bfnnm9zi60l1l4v5l6dgv78"; }) ]; ``` Where the value of `sha256` can be found using `nix-prefetch-url` like this: ``` $ nix-prefetch-url https://git.mineau.eu/histausse/nixos-modules/raw/branch/main/base.nix path is '/nix/store/kql0k090xn40jm1nh0369ilba5lb8akb-base.nix' 1j4wd5fxmn3myakwsjd9vp42s1i6ypjwyj9z98hi6q903ldxwzaa ``` To test a derivation: ``` # nix repl '' ```