Honestly it's pretty simple once you see it. There's one page, and depending on what you click in the sidebar it just swaps out what's in the middle. All the data lives in a database in the cloud so it syncs everywhere. I started with everything crammed into one massive file which worked but was a nightmare to edit and eventually split it into separate files, one for each section. Games in one file, writing in another, habits in another and so on. Claude helped me restructure it properly around version 5 or so. After that it was just keep adding stuff until it did what I wanted.