Trying to install the Flatpak SDK on an ARM machine will fail, because there is no corresponding binaries in the repository. It would be great to support 64-bit ARM, given that some people nowadays have machines with such processors which are quite suitable for WebKit development, like Apple M1 hardware running Linux (either on the metal, or in a virtual machine).
I tried a build a long time ago, but right now I can't remember what was the outcome and why I didn't complete the task...
*** Bug 209592 has been marked as a duplicate of this bug. ***
Pull request: https://github.com/WebKit/WebKit/pull/6548
Committed 256777@main (0c600e832115): <https://commits.webkit.org/256777@main> Reviewed commits have been landed. Closing PR #6548 and removing active labels.
<rdar://problem/102456025>