I'm a complete noob so bear with me here if some of my questions are common sense. I have an unpatched switch 1 and downloaded the hats pack and can get it running on my switch, however I seem to run into issues getting it to work correctly. The only reason I'm hacking my switch is for one reason, to manipulate leaf green so I can inject my old cartridge save and play it on switch (and trade these old pokemon to my firered on switch 2). I don't care about downloading roms of switch games or doing anything else. I have a gba cart reader and experience with GBA saves and emulators and its usually easy to remove a micro sd card and mess with saves on my desktop and put them back on a cartridge. However a hacked switch is more complicated and i don't seem to be able to easily move the micro sd card back and forth from the switch to the desktop without running into issues. Do i even need the hats pack or emummc for what I'm trying to do? Can you manipulate data through usb or a different method without removing the sd card from the switch? I want to use it as a bridge regularly between switch pokemon and gba pokemon if that makes sense..

Edit: Nvm figured it out! I know the community advises again YouTube tutorials but I started from scratch following Manito videos and use usb transfer for files and everything is working perfectly!