This may be a dumb way to do it but I print to PDF. It doesn’t require any new software and works just fine for documents

Check the compatibility with Linux but I also used Ubuntu with very little problem. It works flawlessly for me. I had no experience with Linux before this and was able to set it up with some googling and Asking ChatGPT for some useful commands. It was a fun project. The *arr suite is great.

Lemmy.ml works for me. Your post of requirements resonates with me.