Do we know the ".upgrade" file format? It would be really conveniant if we could put together a "developer-extra.upgrade" package that included binutils, gcc, libc6, and other packages that are of interest to programmers.

I'd love to be able to compile the kernel and other user programs, at a shell on the empeg, but I don't have the patience to manually install each package after every major release by the empeg guys. Instead, we could just tack our extras onto the end of each developer.upgrade they release.