I use it myself, because I wanted to control the prompt and the model used. The "service version" lets you... set the "focus" and pick from claude or openai (claude is a little nicer imo).

This is not about posting some big summary, it's about creating a draft for an actual human to pick through.

It drives focus and productivity, doesn't take away from it (for me at least)

Anyway, a lot of it runs in the browser and uses indexdb for storage. Should be possible to make all of it do that.