@substring I don't expect it will be released here. I was hoping to get a direction or customization steps on the build system. Currently, github download has preset profile for different system. It does not have U3 or at least it is not easily modified from XU4 to U3.

I have RP3 and U3. It would be nice if I can use my U3 to run Recalbox.

According to Odroid forum, XU4 and U3 are software compatible, but not boot image compatible. It needs to change the kernel and mali library. Is there any one has a Recalbox image for U3?

Is there any step by step instruction on building XU4 image from source so that I can try it on U3?