I'm working on a personal-use bookmark manager project, after a realization: tabs, bookmarks, and history, are all just various points on a spectrum of URL frec

I'm working on a personal-use bookmark manager project, after a realization: tabs, bookmarks, and history, are all just various points on a spectrum of URL frecency. I think the UI for managing and browsing these objects should reflect that. With multiple synced devices, I should be able to see all synced tabs, and all bookmarks, and manage and search them, all from one unified interface. The Firefox local cache makes this possible.