I still use flat text files for 90% of my daily note taking. Have done since the early 90s, and the same notes I took then are still working in the same folder

I still use flat text files for 90% of my daily note taking. Have done since the early 90s, and the same notes I took then are still working in the same folder I use today. I sync it to my various devices (every device and platform has a text editor), and it’s never failed me. I have txt files for commands I want to remember for each OS I daily use (linuxcmds.txt, windowscmds.txt, maccmds.txt) and split them the same way you said but 5 dashes. Also keep txt files for install/setup notes for each os, links to every program I want to install in fresh installs, etc etc. Text files work on every single OS/device, the format is stable, it’s easily searchable, easily shareable, and my entire 30 years of notes is measured in megabytes.