The following is the list of things to solve with a refactoring of the xcode tooling, modules and recipes:

• Consolidate different xcode named caches into one flutter_xcode with path osx_sdk https://flutter-review.googlesource.com/c/infra/+/42061
• Add xcode version support from recipes: https://flutter-review.googlesource.com/c/recipes/+/42160
• Documentation - Update documentation with the status quo including user facing information to troubleshoot problems Update xcode config in CI_YAML doc cocoon#2813
• Caches - Efficient caching of xcode versions in a way that once they are installed it will only take seconds on subsequent installations of the same version https://flutter-review.googlesource.com/c/recipes/+/42160
• Runtime installation - support the installation of one or more runtime without impacting caches or subsequent builds https://flutter-review.googlesource.com/c/recipes/+/42160
• Cache pollution - avoid modifying xcode directories to prevent cache pollution (e.g. adding files, symlinks, etc) https://flutter-review.googlesource.com/c/recipes/+/42160
• Clean cache when identified as polluted Auto detect missing runtime and do a fresh xcode install #125273 https://flutter-review.googlesource.com/c/recipes/+/44761
• Multiple xcode versions with different runtime combinations, ensure original caches remain unchanged when runtimes are installed. https://flutter-review.googlesource.com/c/recipes/+/42160
• Consolidate flutter/osx_sdk with flutter/devicelab_osx_sdk
  • supports devicelab in flutter/osx_sdk https://flutter-review.googlesource.com/c/recipes/+/43824
  • adds osx_sdk property to devicelab targets Append osx_sdk property to devicelab tasks cocoon#2698 https://flutter-review.googlesource.com/c/infra/+/43921
  • switch devicelab recipes to use osx_sdk module https://flutter-review.googlesource.com/c/recipes/+/43980
  • remove device_osx_sdk property from devicelab targets
  • clean up devicelab_osx_sdk module https://flutter-review.googlesource.com/c/recipes/+/44001 https://flutter-review.googlesource.com/c/infra/+/44542 Cleanup devicelab_osx_sdk property cocoon#2756
• Clean up obsolete/stale xcode versions: https://flutter-review.googlesource.com/c/recipes/+/42900
• Simplify/consolidate xcode configurations: Consolidate xcode configurations #127534