Ask HN: What tech stack would you use to build an open-source Google Keep clone?
You could take a look at what I'm building with Polar:https://getpolarized.io/It's basically note taking but integrated with the reading flow.  You basically keep all your books and notes in one place and you can annotate and highlight directly within Polar.It's basically a "personal knowledge repository" with all your books and web content integrated along with highlighting.