{ lib, stdenvNoCC
, makeShellWrapper, bash, nix
, devShells
}:

with lib;

let

  shells = concatStringsSep ":" (mapAttrsToList (
      n: v: "${n}=${v.drvPath}=${v}"
    ) devShells);

in stdenvNoCC.mkDerivation rec {
  name = "personal-devshells";
  src = ./.;

  nativeBuildInputs = [ makeShellWrapper ];
  installPhase = ''
    makeShellWrapper ${./dev.sh} $out/bin/dev \
      --prefix PATH : ${lib.makeBinPath [ bash nix ]} \
      --set DEV_SHELLS "${shells}"
  '';
}