People have these crazy custom systems, and more power to 'em, but I just use Apple Notes connected to my self-hosted mail system (it doesn't need to be self-ho

People have these crazy custom systems, and more power to 'em, but I just use Apple Notes connected to my self-hosted mail system (it doesn't need to be self-hosted, just standard IMAP). It stores your notes essentially as pieces of mail in a "Notes" folder, and you can search within the Notes app or any email client (Apple Mail hides the folder, though). Then you get a nice desktop/mobile/tablet apps, rich text editing, and your data stays yours.