Yesterday I boosted someone else's announcement of my post on the new GNOME accessibility blog, but apparently some folks couldn't find the link in that toot, so here it is again: https://blogs.gnome.org/a11y/2023/10/27/a-new-accessibility-architecture-for-modern-free-desktops/
Also wanted to add: I'm glad to be getting back to work on accessibility on desktop Linux, after ~20 years away. Hopefully with the experience I've gained in the meantime, my efforts now will be more effective.