nixos-mailserver/nix/sources.json

{
    "nixpkgs-20.03": {
        "branch": "nixos-20.03",
        "description": "A read-only mirror of NixOS/nixpkgs tracking the released channels. Send issues and PRs to",
        "homepage": "https://github.com/NixOS/nixpkgs",
        "owner": "NixOS",
        "repo": "nixpkgs-channels",
        "rev": "274831839c4f2622019a35d773d4ee588a08c311",
        "sha256": "1dn0cv8ciq83c75hjqlqljjmsns60wqyijx9hzm3j8jvfxm4gzgk",
        "type": "tarball",
        "url": "https://github.com/NixOS/nixpkgs-channels/archive/274831839c4f2622019a35d773d4ee588a08c311.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    },
    "nixpkgs-unstable": {
        "branch": "nixos-unstable",
        "description": "A read-only mirror of NixOS/nixpkgs tracking the released channels. Send issues and PRs to",
        "homepage": "https://github.com/NixOS/nixpkgs",
        "owner": "NixOS",
        "repo": "nixpkgs-channels",
        "rev": "5717d9d2f7ca0662291910c52f1d7b95b568fec2",
        "sha256": "17gxd2f622pyss3r6cjngdav6wzdbr31d7bqx9z2lawxg47mmk1l",
        "type": "tarball",
        "url": "https://github.com/NixOS/nixpkgs-channels/archive/5717d9d2f7ca0662291910c52f1d7b95b568fec2.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    }
}