I thought it would be worth mentioning, if you're using Bootanim9 + Luma and you're using the new method to boot Luma (renaming arm9loaderhax.bin to luma.bin in /anim), it seems the twlfirm patching doesn't work and flashcarts won't boot - with or without launchers. You just get a black screen. The old method (using pathchanger) still works.