That's from November, it seems like since then they have worked out some of their issues and agreed on a plan to cooperate.
https://rebble.io/2025/11/24/rebble-in-your-own-world.html
We have a better understanding of how Eric interacted with the App Store API, and we don’t think that he intended to “steal” from us there.
One of the things that we’ve understood from both our blog post and Eric’s is that we have real common ground: what matters to both of us is keeping the Pebble ecosystem alive and kicking. And from the community reaction, what we hear is clear: we can only do that by working together.
https://ericmigi.com/blog/pebble-watch-software-is-now-100percent-open-source
Pebble Appstore now has a publicly available backup and supports multiple feeds, providing long term reliability through decentralization.