It's okish to implement, here is an example... https://blog.excalidraw.com/end-to-end-encryption/ https://blog.excalidraw.com/end-to-end-encryption/ The harde

It's okish to implement, here is an example... https://blog.excalidraw.com/end-to-end-encryption/ https://blog.excalidraw.com/end-to-end-encryption/ The harder part is probably from a UX sense, how do you make sure people understand that the key is important, and how do you or not store it on their computer.