Just a heads up, but pkNX's GUI already does this. Download the latest build (commits->checkmark->teamcity download) and just drop gfpak files on the window.
why does nobody check the pk3DS thread?
https://projectpokemon.org/forums/forums/topic/34377-pk3ds-xyoras-rom-editor-randomizer/
there's a download link to the latest build so you never have to use an outdated build from some random youtuber.
Too much disinformation in this thread.
You cannot inject powersaves backups from other cartridges. -- save crypto is unique per cartridge
You cannot inject a save file into any decrypted powersaves file. -- save files have "signature" which depends on the unique cart crypto
You can only...
If the program running as 32bit (not 64), the program can only use 2GB of memory. If it's decompressing files in RAM that's a quick way to hit the cap.
Can someone wait for the newest release please ?
Transporter functionality is not finished. However, the latest release can edit VC save files just fine.
If you have homebrew or cfw, just export the extdata for the battle video.
If you have neither, use keysav and follow one of the many guides on the internet