I built Logbook for my own personal note taking.

Two key features for me:

1. Tagging notes works better for me than a directory structure

2. "Feed" style of notes allows me to go search more notes.

https://build.my/logbook

For sharing with public I use GitBook https://www.aizatto.com thought here are some short comings https://www.aizatto.com/why-gitbook . I personally like how it can output to Markdown, so that means I can have a copy of it anywhere