Personally I always get excited by process automaton. Been a minute since I’ve done any VBA but my favorite projects I used it for were probably:

1. Bulk updating CAD models and drawings as part of rebranding. (Solidworks)
2. Interacting with a 5250 emulator (AS400) to automate the data entry/extraction I was doing

Depending on age/interest there’s stuff like luanti

Favorite I’ve had was a switch just sitting on the panels of a drop ceiling. Wasn’t documented that’s where it was either. I spent an hour or so hunting around a department when somebody mentioned, “there’s that tech thing in the ceiling”.

Oooh thanks for the tip. Just learned about ^typocorrection that way!

Nice. Haven’t tried IpFire but gonna give it a look. Been on OpnSense for a couple years now and have been enjoying it.

Small static websites. You can get surprisingly performant and easily managed websites if you don’t actually need the overhead of common frameworks. For instance giving your kid a real domain they can update and show to their friends.

On the slightly more resource intensive side, OpnSense has been a game changer for me.