1. ADK is already an established open source project. Copilot is already open source. I have not even heard of the ones you mentioned

2. Hof is already an established open source project, the goal is to interweave

3. Freedom to explore and design my own experience. Joining another project has never afforded this.

The three options you offered are all VC funded "open source"

This is where the real AI bubble is. VC funded startups who's main plan is likely an acquisition. I'm not interested in those kinds of "open source" anymore, they want to lock you in to their product. Also, https://ssotax.org/

ADK is open source as I like it