I wish I understood how to use them. I have half written scraps of paper and random text in random text files. Notebooks are about the best I can do. I can’t write very well on a vertical board. It is really really uncomfortable and I end up obsessing on how bad it looks over solving the problem. Sometimes drawing on my iPad instead works, but that is another place to look for things.

I do like using Markdown + Mermaid. Obsidian is a nice little note taking app once I got it configured. It just takes me forever.