I am using Earthstar Project's user_scripts in my Timekeeper tool. Programmed using Typescript and using the Deno runtime. It is super nice how I have multiple copies of the data generated by the app. The data is stored within the Earthstar "share" first of course. Then I sync the data with a local dir, which also allows me to edit the data from any editor I have. Then I can easily sync that same data with a remote Earthstar replica, For backup I regularily make a quick zip file backup on an USB stick. All from the command line and without hassle. Oh and I forgot I also keep a replica on another PC, where I can also edit the data which then can sync back.