So, there's been some(?) discussion of metadata, and I was wondering about if
there's been any consideration as to some way to identify varvara roms (possibly
integrated into a metadata format, idk)? I've been wanting to set up a
binfmt_misc handler for uxn roms (using uxnemu), but currently the only way to
really do that is based on file extension, which is cumbersome. It'd be cool if
an eventual metadata format would include some form of identifying magic number?

The magic number that uxn32 and potato is looking for is: a0 ** ** 80 06 37
http://wiki.xxiivv.com/site/metadata.html