Heyo, I’m Snow (aka Yuki) and since i’ve decided to go down the rabbit hole that is GBAFE rom hacking, here are the products of my efforts (well right now there is only one but it will eventually grow if i don’t get lost doing something else).
You can find the source code for everything at the following link: GitHub - yuki-chr/gbafe: collection of rom hacks for GBAFE
As the name suggests, this is a simple hack that ports the FE6 mechanic to FE8.
If you don’t know what it is, basically it makes it so that if a unit which was rescuing another unit dies during its faction’s turn, the rescued unit will be active and able to act instead of being greyed out, allowing for some interesting tech if you’re willing to sacrifice units.
If you spot any bugs or unintended behaviour be sure to let me know on the FEUniverse discord, I’ll try to fix it as soon as possible!