A simple and dirty hack to connect and disconnect to Switch Lan Play servers.
Download and edit as you need.
Requires a Windows Apache/HTTP server with PHP such as https://www.uniformserver.com/ to work.
index.php is where all the buisness is (it's a dirty hack).
.htaccess restricts to your local network. It's currently defaulted to 192.168.0.1/24 (I may update this with all the common LAN configs). Change this for your local network.
You will also need https://github.com/spacemeowx2/switch-lan-play/releases. Just extract the exe to the same directory as index.php and .htaccess.