I'll leave my imcomplete mind dump below for posterity but I'll make it known that while writing it, I did realise that what I've invented is a text editor.

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I had an idea for a deeply unix-y note taking software a while ago and I've continued to think it would actually work very well.

Notes could either be an sqlite database (nets you compression, performance, easy backups, etc.) or just text files on the filesystem (easy searching, less lock-in, whatever). The "editor" just creates a new temporary file and opens it in `$EDITOR`. You can optionally name it after, otherwise it's named the current date.

Want linking? Use a filesystem-aware editor. Want syntax highlighting? Use an editor with syntax highlighting. Want to sync your notes? Combine it with Syncthing. Want to search your notes? fzf.