I created a docker container which contains everything you need for an AmiTube Server, including Apache2, PHP, yt-dlp and all the script you need.
All you need to get it, is to start:
docker pull alb42/amitubeserver
on your linux box with docker installed
and then to start the actual docker container:
docker run -p 1234:80 alb42/amitubeserver
here the 1234 is just as example the port you want to have the server running on (of 80 is free of course you can also use -p 80:80). Then go to your AmiTube icon and add the SERVERURL= parameter for example
An voila it should work