The development is in the open, happening through PRs on GitHub and across several independent client teams. You can join the R&D discord (I’m there as a casual

The development is in the open, happening through PRs on GitHub and across several independent client teams. You can join the R&D discord (I’m there as a casual observer) and watch or engage in technical discussions. You can propose EIPs or make suggestions about how the chain should work, and everybody can collectively decide it is a good or bad idea for the protocol. Overall it’s very open, although they do have to draw the line somewhere and I assume the core dev’s weekly zoom calls and standups are not open to everybody to join lest it degrade into madness (these devs work across a range of independent companies and orgs fwiw). Even these calls and notes are shared btw.