{ ... }:
{
  perSystem =
    { pkgs, ... }:
    let
      ffmpeg-placebo = pkgs.ffmpeg.override { withPlacebo = true; };
    in
    {
      packages.android-webcam =
        (pkgs.writeShellApplication {
          name = "android-webcam";
          runtimeInputs = [
            pkgs.scrcpy
            ffmpeg-placebo
            pkgs.gnused
          ];
          text = builtins.replaceStrings [ "@shaderPath@" ] [ "${./ascii.hook}" ] (
            builtins.readFile ./android-webcam.sh
          );
        }).overrideAttrs
          { passthru.usage = builtins.readFile ./usage.kdl; };
    };
}