niv/nix/sources.json

{
    "nixpkgs": {
        "branch": "release-20.03",
        "description": "Nix Packages collection",
        "homepage": null,
        "owner": "NixOS",
        "repo": "nixpkgs",
        "rev": "6f7e39c768442fce08646c3fbccacb2808baff66",
        "sha256": "0mkf96prhb3rlxvcxhd8xa5kd56gfrakhriv2s0cir9w6cmrfzbp",
        "type": "tarball",
        "url": "https://github.com/NixOS/nixpkgs/archive/6f7e39c768442fce08646c3fbccacb2808baff66.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    },
    "nixpkgs-fmt": {
        "branch": "master",
        "description": "Nix code formatter for nixpkgs [maintainer=@zimbatm]",
        "homepage": "https://nix-community.github.io/nixpkgs-fmt/",
        "owner": "nix-community",
        "repo": "nixpkgs-fmt",
        "rev": "2a64f4b6a597d0d62004ffcec3ae4fd83cd1efc8",
        "sha256": "01kx4y1d4c5fjvpcffk92pk9hdbgg5j9h2ryqy2hfm54s7mb0k63",
        "type": "tarball",
        "url": "https://github.com/nix-community/nixpkgs-fmt/archive/2a64f4b6a597d0d62004ffcec3ae4fd83cd1efc8.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    },
    "termtosvg": {
        "branch": "develop",
        "description": "Record terminal sessions as SVG animations",
        "homepage": "https://nbedos.github.io/termtosvg/",
        "owner": "nbedos",
        "repo": "termtosvg",
        "rev": "b97cc0132073111cec37f64c95539e869202ff99",
        "sha256": "1c86622sda98zm3q3dzwmm37i09yca661kn860svl191nqbh2l68",
        "type": "tarball",
        "url": "https://github.com/nbedos/termtosvg/archive/b97cc0132073111cec37f64c95539e869202ff99.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    }
}