Yes I know this is more of a stack overflow question but no one seems to have asked it and not going to waste time getting downvoted and having my account banned for not knowing something again .-.

Just wanting to know if anyone is able to recommend some libraries that would be useful for making mobile Linux apps with GTK?

Preferably ones that will interface with Vala as I'm wanting to build a mini ecosystem of apps for the pine phone to interface with Elementary OS?