nixos-mailserver/nix/sources.json

{
    "nixpkgs-20.09": {
        "branch": "release-20.09",
        "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",
        "rev": "b6eefa48d8e10491e43c0c6155ac12b463f6fed3",
        "sha256": "0hrp7gshy62bsj719xd6hk6z284pzr8ksw1vvxvyfrffq1f7d8k9",
        "type": "tarball",
        "url": "https://github.com/NixOS/nixpkgs/archive/b6eefa48d8e10491e43c0c6155ac12b463f6fed3.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    },
    "nixpkgs-unstable": {
        "branch": "master",
        "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",
        "rev": "ee9154c4c1a51a6b1129e8bf8b728ab6432eda3e",
        "sha256": "1j1laj1b44022k2jmidp0gb8jx1yp4rsjgzcxmxkwlkv7b04bza3",
        "type": "tarball",
        "url": "https://github.com/NixOS/nixpkgs/archive/ee9154c4c1a51a6b1129e8bf8b728ab6432eda3e.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    }
}