M_dow Zettelkasten and Bullet Journals are my two favorite productivity tools. A++ highly recommended.

Kevin Lin for note taking, I would recommend dendron.so - its a local-first roam like open source markdown note taking app built on top of vscode (disclaimer: author here). we just launched our preview a week ago and are making updates on a daily basis

That Man Congrats on your launch. How is this going to differ from what Obsidian does? And what does this do better than other non linear note taking apps?