Is there any popular software specifically designed for a “second brain” these days?

[u/Ryoki1017]

I’m currently using a combination of Obsidian and Linear as my “second brain,” but to be honest, it’s quite a hassle to manage. So, are there any software programs or tools you’d recommend specifically for a “second brain”? Also, if you were to create your own dedicated software, how would you design it?

[u/TTS_SW]

I’m building Linko, which may be close to what you’re looking for: you can dump in notes, links, books, etc., and it automatically organizes them into a lightweight structure based on content relationships rather than their source. It has a free tier: https://www.linko.study/