I’m using A14 based crDroid 10.2 with release date 2024-03-08 from their official website. Meanwhile they again seemed to have dropped official support there for whatever reason.
As also mentioned in this thread above somewhere xiaomi pen works there but be careful when porting…at their side the tablet itself does not do quick charging and instead only charges at approx 10W.
I don’t recall whether if quick charging is working in your current /e/OS version - but beware of not trading in one feat for the other when porting 
Unfortunately I’m not fit enough in android development to support in porting…but thanks again for your work on this rom…