Debian-based custom built thing. Nothing special.

I have no such advice. I use a Linux basedd NAS myself.

What are those categories/apps?

Seems you also use a bit of freeBSD in your setup besides Linux. Still FOSS though!

I have a Epic acciunt and claim all the free games. No play time. The intention is just to do what I can to hurt them economically. Hopefully the creators of the games akao get something.