Started but stopped. most of the things are commands, code snippets, urls, all of which are tedious to hand-write and just easier to copy&paste. Often I do 'typescript' for shell sessions, asciinema or stuff like that, and file those.
Also, use git, commit everything, never care about doing tidy commits, just commit commit commit and use tons of branches to try out stuff. if you need clean history later on, you can always do interactive rebase, squash merge or whatever. but having a documentation of all the things tried and failed is far more important.
I thought the entire point was that it syncs cross platform really quickly and lets you have the best of both worlds?
Only handwriting in a proprietary format. It isn't at all like one would wish for. It works as a replacement for a paper notebook. But it largely ignores the things one could do when adding more digital embeddings. In that way it is even worse than OneNote.
If you want to do something like that, my recommendation would actually be something like OneNote on some Windows tablet.