I know, i already have seen your posts and i totaly understand the situation, but i need to work with what i have available (until i get a wired connection). Thats the reason why i didn't asked to include the driver into LibreELEC, i just want to know how i could integrate it by myself.
I got it working by overwriting LibreELEC.tv/packages/linux-drivers/RTL8812AU/package.mk and thanks to your post i found a PR where someone mentioned the "linux-driver-addons", that is what i want to try next, so i don't need to build the whole image.
Lets say i create an addon in LibreELEC.tv/packages/linux-driver-addons/rtl8812au-custom with PKG_NAME=rtl8812au-custom would the command to build it be PROJECT=Generic ARCH=x86_64 scripts/create_addon rtl8812au-custom or do i need to run a different command since it is a "linux-driver-addon"?
PS: Maybe you could move this thread to Development?