As people have already mentioned, the pipes were a bit janky but I managed to progress a bit by working backwards. Subtitles would definitely help with understanding the initial dialogue, as well as some kind of tool-tip or instruction on what you're supposed to do because I was quite confused at the beginning and stumbled on the mechanics.
Thought a 3D pipe building game is pretty fun, would love to see some of the difficulties smoothed out because the foundation is already there!