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.

Sist2 (Lightning-fast file system indexer and search tool). I’m not suggesting this is most unique use case, but noone mentioned it. I was mind blown when I became aware of it. I was looking for a way to manage my digital book and document archive for a long time. Tried various book management solution but none had full text search across whole library. Its lighting fast (like instant) you get excerpts with thumbnails and links to the files. Point it to your storage and you will gain extremely efficient way to look at your archives and references. Btw. I was already well organized and structured with my files, but going through it and searching for things I knew were there, was always a bit of a pain.