{
  lib,
  mkCoqDerivation,
  coq,
  mathcomp,
  version ? null,
}:

mkCoqDerivation {
  pname = "fourcolor";
  owner = "math-comp";

  releaseRev = v: "v${v}";

  release."1.2.3".sha256 = "sha256-gwKfUa74fIP7j+2eQgnLD7AswjCtOFGHGaIWb4qI0n4=";
  release."1.2.4".sha256 = "sha256-iSW2O1kuunvOqTolmGGXmsYTxo2MJYCdW3BnEhp6Ksg=";
  release."1.2.5".sha256 = "sha256-3qOPNCRjGK2UdHGMSqElpIXhAPVCklpeQgZwf9AFals=";
  release."1.3.0".sha256 = "sha256-h9pa6vaKT6jCEaIdEdcu0498Ou5kEXtZdb9P7WXK1DQ=";
  release."1.3.1".sha256 = "sha256-wBizm1hJXPYBu0tHFNScQHd22FebsJYoggT5OlhY/zM=";
  release."1.4.0".sha256 = "sha256-8TtNPEbp3uLAH+MjOKiTZHOjPb3vVYlabuqsdWxbg80=";
  release."1.4.1".sha256 = "sha256-0UASpo9CdpvidRv33BDWrevo+NSOhxLQFPCJAWPXf+s=";
  release."1.4.2".sha256 = "sha256-d5J8j8gi6siwCLevM6y8Hf2rTB/HEfh72LLk0Qlzr0c=";

  inherit version;
  defaultVersion =
    let
      case = coq: mc: out: {
        cases = [
          coq
          mc
        ];
        inherit out;
      };
    in
    with lib.versions;
    lib.switch
      [ coq.coq-version mathcomp.version ]
      [
        (case (isGe "8.20") (isGe "2.4") "1.4.2")
        (case (isGe "8.16") (isGe "2.0") "1.4.1")
        (case (isGe "8.16") "2.0.0" "1.3.0")
        (case (isGe "8.11") (range "1.12" "1.19") "1.2.5")
        (case (isGe "8.11") (range "1.11" "1.14") "1.2.4")
        (case (isLe "8.13") (lib.pred.inter (isGe "1.11.0") (isLt "1.13")) "1.2.3")
      ]
      null;

  propagatedBuildInputs = [
    mathcomp.boot
    mathcomp.fingroup
    mathcomp.algebra
  ];

  meta = {
    description = "Formal proof of the Four Color Theorem";
    maintainers = with lib.maintainers; [ siraben ];
    license = lib.licenses.cecill-b;
    platforms = lib.platforms.unix;
  };
}