The way I use it it's relatively simple, I tend to forget a lot so I leave notes, documentation, references, know hows and pretty much everything I judge that I will need in the future and will definitely forget.
In order to sync it with my other computers, I use another tool (Nextcloud), hosted on my homelab. I know it requires signing in but, think about it, it comes with clients for linux, windows and mac and phone (but I haven't tried zettlr for phone, not even sure they have it). With this you will get the best of both worlds: cloud and local.
Thank you. I want to add that, my priorities are to make this project available for everybody, my intent is to make it functional, on the prototype I didn't see the need of security because, my own network is private so testing it was a breeze, but now i did implement an authentication because many people requested it. My main goal of building something that's like apple's touch bar , is kinda finished but that doesn't mean i won't evolve the project , all i need is just some ideas and I will happly implement them because I love programming
It's still a cool prototype, and there's still cool stuff you could add. For instance, if I were to use my phone as an extra keyboard for shortcuts, etc., I'd probably have it tethered via USB. USB device identification should be handled in software, so it stands to reason that your phone can pretend to be a USB HID device (similar to what is done in this[0] paper). Having a simple scripting layer would be interesting too. Trackpad wouldn't be bad either.
Another thing that could be cool is having your phone pretend to be a USB webcam.
