What's your weirdest or most unique self-hosted use case and solution?

I’m self hosting on an old laptop, and I’m a convert for life. Self-hosting is amazing. Looking for other people’s weirdest examples of what they’re doing as inspiration.

My example, I recently set up a grammar script, where I have a couple 8b LLMs and an html landing page. I upload a doc and it corrects grammar and highlights changes it made, or just proofreads and I make changes manually. I can upload a novel before bed, and have suggestions based on specific writing styles in the morning. All local, perfectly suited for my own work.

My wife often writes groceries lists using her phones note app, and sends it to me if I’m doing the shopping. Each item in the list is in it’s own line.

I use Nextcloud Notes, I’m pedantic and want to use a markdown checkist for shopping lists (also bad at shopping). I wrote a Matrix bot, or rather added a feature to an existing one, that adds - [ ] in the beginning of each line of a received message and sends the result back. I then copy-paste the response into NC notes.

for this my wife and i use grocy. we don’t really use the stock feature (which is probably the original main feature), bit is nice to do shipping lists by just clicking stuff that you already wrote and the shopping mode of the app is awesome. also the chores feature we use heavily, i just needed to tweak the ics export a bit.

I use vi to write my list and then lp that to my printer. I hate looking at my phone when I’m at the store trying to double check if I got everything.