DietPi makes it dead simple to run most of these things as their "software suite" is pretty robust and simple to setup.

For "user facing" applications:

• Homer Dashboard as the landing page when going to the .local address in a browser
• Kiwix for the ZIMs
• Hedgedoc for personal note taking/wiki
• Lychee photos for a very lightweight photo album maker/viewer for keepsake photos.

For "admin side" stuff:

• Portainer to manage the containers/stacks
• Watchtower to auto-update the containers while they're still network connected
• Transmission daemonized to download and seed the ZIMs or anything else non-pirate related
• Use jojo2357's ZIM updater to auto-update ZIMs via cron job while they're still network connected
• DietPi-Dashboard as an all-in-one dashboard to monitor and control the RPi from a web interface. (Yeah I know I can do everything SSH'ing in but I'm lazy.)
• File Browser just in case I want other people to have access to files but since it's in maintenance mode and I'm unsure I want others to have access, might strip it out

I try to use containers from LinuxServer.io whenever possible. Mostly just cause it's what I do on my main server.

I'm still looking at adding/removing things as I get more time to sit down but I'm pretty happy with it's current state.