I use this https://www.styluslabs.com/ https://www.styluslabs.com/ since it is the only thing that works (offline) in both Linux and ipad for handwritten notes.

I use this https://www.styluslabs.com/ https://www.styluslabs.com/ since it is the only thing that works (offline) in both Linux and ipad for handwritten notes. It's not as good as One Note but it the best I was able to find. If you have some better suggestion I'm all hears!