{
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        "branch": "master",
        "description": "Easy dependency management for Nix projects",
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        "type": "tarball",
        "url": "https://github.com/nmattia/niv/archive/f73bf8d584148677b01859677a63191c31911eae.tar.gz",
        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    },
    "nixpkgs": {
        "branch": "release-19.03",
        "description": "Nix Packages collection",
        "homepage": null,
        "owner": "NixOS",
        "repo": "nixpkgs",
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        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
    }
}