During the sprint, I, @erlendaasland, and @brettcannon replaced the current container images to use our own images through Replace container images to packages from cpython-devcontainers · Issue #124612 · python/cpython · GitHub
Thanks to all the people supporting this task 
My next target is migrating the Gitlab CI repo to here. I will pile the new topic about this. If someone has an interest. Stay tuned! cc @barry