{ lib, beamPackages, overrides ? (x: y: { }) }:

let
  buildMix = lib.makeOverridable beamPackages.buildMix;
  buildRebar3 = lib.makeOverridable beamPackages.buildRebar3;

  defaultOverrides = (final: prev:

    let
      apps = { };

      workarounds = { };

      applyOverrides = appName: drv:
        let
          allOverridesForApp = builtins.foldl'
            (acc: workaround: acc // workarounds.${workaround} drv)
            { }
            apps.${appName};

        in
        if builtins.hasAttr appName apps
        then
          drv.override allOverridesForApp
        else
          drv;

    in
    builtins.mapAttrs applyOverrides prev);

  self = packages // (defaultOverrides self packages) // (overrides self packages);

  packages = with beamPackages; with self; {
    certifi =
      let
        version = "2.12.0";
      in
      buildRebar3 {
        inherit version;
        name = "certifi";

        src = fetchHex {
          inherit version;
          pkg = "certifi";
          sha256 = "ee68d85df22e554040cdb4be100f33873ac6051387baf6a8f6ce82272340ff1c";
        };
      };

    cowboy =
      let
        version = "2.12.0";
      in
      buildRebar3 {
        inherit version;
        name = "cowboy";

        src = fetchHex {
          inherit version;
          pkg = "cowboy";
          sha256 = "8a7abe6d183372ceb21caa2709bec928ab2b72e18a3911aa1771639bef82651e";
        };

        beamDeps = [ cowlib ranch ];
      };

    cowboy_telemetry =
      let
        version = "0.4.0";
      in
      buildRebar3 {
        inherit version;
        name = "cowboy_telemetry";

        src = fetchHex {
          inherit version;
          pkg = "cowboy_telemetry";
          sha256 = "7d98bac1ee4565d31b62d59f8823dfd8356a169e7fcbb83831b8a5397404c9de";
        };

        beamDeps = [ cowboy telemetry ];
      };

    cowlib =
      let
        version = "2.13.0";
      in
      buildRebar3 {
        inherit version;
        name = "cowlib";

        src = fetchHex {
          inherit version;
          pkg = "cowlib";
          sha256 = "e1e1284dc3fc030a64b1ad0d8382ae7e99da46c3246b815318a4b848873800a4";
        };
      };

    enough =
      let
        version = "0.1.0";
      in
      buildRebar3 {
        inherit version;
        name = "enough";

        src = fetchHex {
          inherit version;
          pkg = "enough";
          sha256 = "0460c7abda5f5e0ea592b12bc6976b8a5c4b96e42f332059cd396525374bf9a1";
        };
      };

    gen_state_machine =
      let
        version = "3.0.0";
      in
      buildMix {
        inherit version;
        name = "gen_state_machine";

        src = fetchHex {
          inherit version;
          pkg = "gen_state_machine";
          sha256 = "0a59652574bebceb7309f6b749d2a41b45fdeda8dbb4da0791e355dd19f0ed15";
        };
      };

    hackney =
      let
        version = "1.20.1";
      in
      buildRebar3 {
        inherit version;
        name = "hackney";

        src = fetchHex {
          inherit version;
          pkg = "hackney";
          sha256 = "fe9094e5f1a2a2c0a7d10918fee36bfec0ec2a979994cff8cfe8058cd9af38e3";
        };

        beamDeps = [ certifi idna metrics mimerl parse_trans ssl_verify_fun unicode_util_compat ];
      };

    httpoison =
      let
        version = "2.2.1";
      in
      buildMix {
        inherit version;
        name = "httpoison";

        src = fetchHex {
          inherit version;
          pkg = "httpoison";
          sha256 = "51364e6d2f429d80e14fe4b5f8e39719cacd03eb3f9a9286e61e216feac2d2df";
        };

        beamDeps = [ hackney ];
      };

    idna =
      let
        version = "6.1.1";
      in
      buildRebar3 {
        inherit version;
        name = "idna";

        src = fetchHex {
          inherit version;
          pkg = "idna";
          sha256 = "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea";
        };

        beamDeps = [ unicode_util_compat ];
      };

    jason =
      let
        version = "1.4.3";
      in
      buildMix {
        inherit version;
        name = "jason";

        src = fetchHex {
          inherit version;
          pkg = "jason";
          sha256 = "9a90e868927f7c777689baa16d86f4d0e086d968db5c05d917ccff6d443e58a3";
        };
      };

    metrics =
      let
        version = "1.0.1";
      in
      buildRebar3 {
        inherit version;
        name = "metrics";

        src = fetchHex {
          inherit version;
          pkg = "metrics";
          sha256 = "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16";
        };
      };

    mime =
      let
        version = "2.0.6";
      in
      buildMix {
        inherit version;
        name = "mime";

        src = fetchHex {
          inherit version;
          pkg = "mime";
          sha256 = "c9945363a6b26d747389aac3643f8e0e09d30499a138ad64fe8fd1d13d9b153e";
        };
      };

    mimerl =
      let
        version = "1.3.0";
      in
      buildRebar3 {
        inherit version;
        name = "mimerl";

        src = fetchHex {
          inherit version;
          pkg = "mimerl";
          sha256 = "a1e15a50d1887217de95f0b9b0793e32853f7c258a5cd227650889b38839fe9d";
        };
      };

    parse_trans =
      let
        version = "3.4.1";
      in
      buildRebar3 {
        inherit version;
        name = "parse_trans";

        src = fetchHex {
          inherit version;
          pkg = "parse_trans";
          sha256 = "620a406ce75dada827b82e453c19cf06776be266f5a67cff34e1ef2cbb60e49a";
        };
      };

    plug =
      let
        version = "1.16.1";
      in
      buildMix {
        inherit version;
        name = "plug";

        src = fetchHex {
          inherit version;
          pkg = "plug";
          sha256 = "a13ff6b9006b03d7e33874945b2755253841b238c34071ed85b0e86057f8cddc";
        };

        beamDeps = [ mime plug_crypto telemetry ];
      };

    plug_cowboy =
      let
        version = "2.7.1";
      in
      buildMix {
        inherit version;
        name = "plug_cowboy";

        src = fetchHex {
          inherit version;
          pkg = "plug_cowboy";
          sha256 = "02dbd5f9ab571b864ae39418db7811618506256f6d13b4a45037e5fe78dc5de3";
        };

        beamDeps = [ cowboy cowboy_telemetry plug ];
      };

    plug_crypto =
      let
        version = "2.1.0";
      in
      buildMix {
        inherit version;
        name = "plug_crypto";

        src = fetchHex {
          inherit version;
          pkg = "plug_crypto";
          sha256 = "131216a4b030b8f8ce0f26038bc4421ae60e4bb95c5cf5395e1421437824c4fa";
        };
      };

    ranch =
      let
        version = "1.8.0";
      in
      buildRebar3 {
        inherit version;
        name = "ranch";

        src = fetchHex {
          inherit version;
          pkg = "ranch";
          sha256 = "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5";
        };
      };

    ssl_verify_fun =
      let
        version = "1.1.7";
      in
      buildMix {
        inherit version;
        name = "ssl_verify_fun";

        src = fetchHex {
          inherit version;
          pkg = "ssl_verify_fun";
          sha256 = "fe4c190e8f37401d30167c8c405eda19469f34577987c76dde613e838bbc67f8";
        };
      };

    systemd =
      let
        version = "0.6.2";
      in
      buildRebar3 {
        inherit version;
        name = "systemd";

        src = fetchHex {
          inherit version;
          pkg = "systemd";
          sha256 = "5062b911800c1ab05157c7bf9a9fbe23dd24c58891c87fd12d2e3ed8fc1708b8";
        };

        beamDeps = [ enough ];
      };

    telemetry =
      let
        version = "1.2.1";
      in
      buildRebar3 {
        inherit version;
        name = "telemetry";

        src = fetchHex {
          inherit version;
          pkg = "telemetry";
          sha256 = "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5";
        };
      };

    tortoise311 =
      let
        version = "0.11.7";
      in
      buildMix {
        inherit version;
        name = "tortoise311";

        src = fetchHex {
          inherit version;
          pkg = "tortoise311";
          sha256 = "0ef7cf940b50ab47c433323294c9a3bb2883a03e0c7cb37de3e860c0b9ba5bef";
        };

        beamDeps = [ gen_state_machine telemetry ];
      };

    typed_struct =
      let
        version = "0.3.0";
      in
      buildMix {
        inherit version;
        name = "typed_struct";

        src = fetchHex {
          inherit version;
          pkg = "typed_struct";
          sha256 = "c50bd5c3a61fe4e198a8504f939be3d3c85903b382bde4865579bc23111d1b6d";
        };
      };

    tz =
      let
        version = "0.26.5";
      in
      buildMix {
        inherit version;
        name = "tz";

        src = fetchHex {
          inherit version;
          pkg = "tz";
          sha256 = "c4f9392d710582c7108b6b8c635f4981120ec4b2072adbd242290fc842338183";
        };
      };

    unicode_util_compat =
      let
        version = "0.7.0";
      in
      buildRebar3 {
        inherit version;
        name = "unicode_util_compat";

        src = fetchHex {
          inherit version;
          pkg = "unicode_util_compat";
          sha256 = "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521";
        };
      };
  };
in
self