I once wrote a patch to Emacs to make it possible to build it as part of buildroot. The problem here is that buildroot does cross-compiling, and Emacs has no n

I once wrote a patch to Emacs to make it possible to build it as part of buildroot. The problem here is that buildroot does cross-compiling, and Emacs has no native support for cross-building. However, qemu was able to help by emulating the target arch at user-space level (I didnt even know this worked, very nice). I am not sure if that hack still works today, since the Emacs dumper was recently rewritten AFAIK. Regarding Emacs being an universal UI platform, I wrote a metapost to emacs-devel to celebrate that fact very recently. Indeed, Emacs is the only platform I know which can be used to write programs which work on the terminal and with a GUI toolkit alike. I call that modality-independant. https://lists.gnu.org/archive/html/emacs-devel/2020-09/msg00286.html https://lists.gnu.org/archive/html/emacs-devel/2020-09/msg00...