ros2 build from source - delete build files?
I have built ROS2 (Galactic) from source on an unsupported platform (Raspberry Pi OS), with (mostly) success. But, I'm annoyed that the directories used in that process now take up some 11GB of space, which seems like a lot. Is it possible to delete leftover build files to free up space on this limited-capacity system? If so, what can I delete? I have tried getting rid of the Build folder, and other variations like keeping all the Shell files, and the system is not happy with that. Any advice on what I can get rid of, if anything, would be appreciated.