I have not found Flux to be particularly useful. For schematic design and PCB layout KiCAD is my go-to. Flux was difficult to use and the purported AI assistance was non-existent.
Digikey has made Ultra Librarian famous. I wouldn't be surprised if they were connected somehow. About 80% of Digikey components have models. About 80% of those are Ultra Librarian models. About 95% of the models are correct, which is a lot better than a few years ago.
Now it needs to be integrated with atopile.
It'd be nice to be able to describe the circuit as simple code, compile it, and then get it in the mail a couple of days later.
Having never heard of Ultra Librarian, I thought this was somehow related to https://justgetflux.com/ and that they'd made a switch from doing color changing to hardware.
I spent several months working with Flux, and while I actually generally enjoyed the UI and web-based approach, I had to switch back to KiCAD because there were so many dealbreaking bugs in fundamental features.
The realtime collaboration was just straight up broken; as in, my collaborator would make changes that would not manifest until I refreshed. This is unacceptable.
The PCB tracing was unusable because you could not control the wires and things would appear in strange places. Forget auto-routing... I had trouble just getting it to connect wires.
I could go on at (great) length, but while I genuinely am rooting for the team behind this product, I can't recommend it until they prioritize getting the fundamentals working properly over adding new AI features.
That said, in attempting to work through these issues, I gained a healthy amount of respect for how hard it is to create a viable new entry in this domain. For whatever reason, it often seems culturally normalized to shit on Flux and I think this is toxic and unproductive.