Oh wow, so the schematics are published, the repair procedure is documented and you can 3D print the parts yourself? Sign me up for the open source shower!

Oh you thought open source meant sharing your secrets? Nah it's actually more common to see secrets in the code in closed source projects than in projects that were open source from the start. In open source software, you need to set your own PP_SIZE as an env var or provide it in a .env file or keyvault.