So, where do we stand on support for UEFI (Tianocore?)
Hmm, what does UEFI have to do with it?
Can I use the same build for both X230 and X230T? What else would I miss?
AFAIK the Tablet doesn't need firmware-initialization. At least Vitali Serbinenko mentioned [1] that the builds for X220 und X220T are identical. I highly presume that it's the same with 230.
Except the wifi whitelist, my X230T has been better than all my previous laptops.
I know how you feel. These machines are great. Have you tried flashing cb before? There are lots of suitable machines on ebay.
Philipp