I've always used notepad++ with one single giant .txt file for taking notes with dividers separated for each day so I codified that practice into a desktop app

Just a super minimalist thing where each day is one .txt file with the newest one at the top and a lazy loading scrolling list with every note going back 5 years

Supports CTRL + F searching, backups, and a bunch of other QoL features/macros

Its kind of a revolution that with agentic coding everyone can have their own hyperspecific customized apps