I'm one of the main authors. No stagnation, the future is bright but I've been founding a small company recently, not related to Pijul. I've shown an MVP to customers three months ago, now I'm close to 1.0 there. I promise I'll move back to Pijul soon.
Another issue is the Nest (our hosting service), I've been working on a new Nest that can benefit from being open source, unlike the current one.
Another indication that it's doing alright: I'll give a talk about it at BOB 2023 (bobkonf.de), and an invited talk in April at Collège de France.