I didn&#x27;t have time to implement support for homebrew ROMs (in fact, I don&#x27;t even know how they work -- I&#x27;m not into the NDS homebrew scene so I know close to nothing on how they are developed).<p>I would expect at least the BIOS to be needed, maybe the firmware is custom; it is certainly possible to emulate the BIOS via HLE (I know some emulators do it), but I find it a little outside of the scope of my projects. I might get to it, eventually.<p>I also dispute that owning a dump of a game&#x2F;BIOS of a console you own is illegal, but that&#x27;s a large discussion for lawyers :)