Automatic nsp/xci -> nsz/xcz conversion

[vardrop]

This might be helpful for others, if you want to automatically convert nsp/xci to nsz/xcz,
you can add the following service to your docker-compose.yaml.

This will watch <gamesdir> for file changes and then try to convert and undupe them.

services:
  nsz:
    container_name: nsz
    image: ghcr.io/astral-sh/uv:debian
    volumes:
      - <gamesdir>:/games
      - <nszconfig>:/root/.switch/
    command: >
      uvx --from watchdog watchmedo shell-command
      --patterns="*.nsp;*.xci"
      --recursive
      --command='uvx nsz --rm-old-version --rm-source --verify --undupe --undupe-old-versions -C /games'
      /games

<gamesdir> should point to your xci/nsp files and should be the same dir that is mounted to /games for ownfoil
<nszconfig> should point to a dir containing your prod.keys