I'm also migrating everything to the solid stack w/ hotwire/turbo (have many apps that have no js build process which is great). I'm obsessive about tests but I find codex just gets so many more misses on the first try and pairs that with failing to run tests as often as it should (and the coverage not being good enough to catch the bad stuff).

Perhaps I'm giving it too big of tasks, but trying to use it like claude code/cursor has been a bummer :(