{
  lib,
  stdenv,
}:

stdenv.mkDerivation {
  pname = "example-a";
  version = "0.1.0";

  src = ./.;

  dontUnpack = true;

  installPhase = ''
    mkdir -p $out/bin
    cat > $out/bin/example-a << 'EOF'
    #!/bin/sh
    echo "Hello from example-a!"
    EOF
    chmod +x $out/bin/example-a
  '';

  meta = {
    description = "Example package A";
    license = lib.licenses.mit;
    platforms = lib.platforms.all;
  };
}