Measuring developer experience, benchmarks, and providing a theory of improvement.
https://lethain.com/measuring-developer-experience-benchmarks-theory-of-improvement/
First, I hope that framework proliferation slows down a bit. DORA, SPACE, DX Core 4 and so on are all great frameworks, but hopefully we reach a point where creating another framework is obviously not worth it. I think DX Core 4 could particularly contribute to this by emphasizing the calculation mechanism for DXI, and ensuring that access to that calculation is predictably preserved for even competitive companies to use.