I'm guessing from your other posts you are targeting "Dark Side of Orbit". I saw you posted in a tutorial thread about games using corona too.
Using this
Corona Archiver from github I am going to assume from your post you have unpacked and decompile the .lu files which are compiled lua using luac.
The game is using lua 5.1, if you have the files decompiled and assuming the game is using standard lua stuff, you should be able to compile them back with luac yourself and then use Corona Archiver to repack the files into a resources.car.
Download these prebuilt lua 5.1.4 binaries:
https://sourceforge.net/projects/luabinaries/files/5.1.4/Tools Executables/. I did a quick test with:
lua5_1_4_Win32_bin.zip and it does recompile, I did not test this in game though.
The process should be something like (using main.lu as an example):
Unpack resources.car:
.\corona-archiver.exe -u .\resource.car .\unpacked\
Decompile main.lu:
java -jar .\unluac_2023_11_15.jar .\out\main.lu > main.lua
Edit target file
Recompile main.lua (-s strip debug information):
luac5.1.exe -s -o main.lu .\main.lua
Replace old main.lu in out directory with newly compiled one
Repack resource.car:
.\corona-archiver.exe -p .\out\ resource.car
Add new resource.car to apk/sign apk/install etc
