A lot of orgs seem to be implementing their own version of this (we are), but having an out of the box solution is a great starting point.

Looks nice, would help me, if there where some real world examples on the website.

this is crazyy, lately I am playing with nobodywho and build a local hosted journal so my data stays with me. Here you can check it out https://github.com/nikolovv861/reflect but I think you can definetely integrate some parts from nobodywho image this aka Obsidian on steroids + local AI model