For anyone interested in getting ZXDS to work via TwilightMenu++ on a 2DS/3DS, please check this post out for information on how I got it to work perfectly well (being a new user, I'm unable to submit full links, so hopefully this is enough):
gbatemp.net/threads/ds-i-3ds-twilight-menu-gui-for-ds-i-games-and-ds-i-menu-replacement.472200/page-344#post-8724464
(probably the best ZX emulation experience on a *DS console - everything else crashes for me as well, just like the op said)