After reading a couple posts here on HN about building a "second brain", I found a surprisingly effective setup to do that:

- Vim with vimwiki (https://github.com/vimwiki/vimwiki)

- A private Gitlab repo

- A simple cron job to commit all changes in `~/.vimwiki` to my private repo

And this is it! It would be possible to publish the wiki on the web using Gitlab pages, but so far it is working nice to me.