• Remove any references to non-API packages which are made from API code
• Move API from src/main/java/me/desht/pneumaticcraft/api to src/api/java/me/desht/pneumaticcraft/api - separate module
• This will allow easy creation of a separate API JAR, which can then be uploaded to a Maven repo somewhere (cloudpackage.io maybe?)

Is https://files.minecraftforge.net/maven open to be used somehow? (AE2 uses it apparently)

Not sure TBH. Maybe I'll ask in the Forge forums.

It's not overly important though; there are plenty places where the JARs could be hosted for Maven purposes (including here on GitHub).

@desht True, just seemed like a nice option if it's usable by the public somehow

Closing this, with thanks to Zixxl.