** build_rom.sh **
Command example: . . scripts/build_rom.sh taimen userdebug nogsi nosync noclean on
Parameter 1: The device to build: angler | taimen | others
Parameter 2: The build type: userdebug | user
Parameter 3: The build type (GSI image or twrp flashable zip): gsi | nogsi
Parameter 4: Repo sync or don't sync the source: sync | nosync
Parameter 5: Make a clean build: clean (to run a "make clobber") | noclean (to run a "make installclean") (hint: installclean is usually enough to build without errors)
Parameter 6: Shutdown the system: on (to keep it on) | off (to switch it off after the build is done)
** build_apk.sh **
Command example: . scripts/build_apk.sh taimen nosync noclean SystemUI
Parameter 1: The device to build: angler | taimen | others
Parameter 2: The build type: userdebug | user
Parameter 3: Repo sync or don't sync the source: sync | nosync
Parameter 4: Make a clean build: clean (to run a "make clobber") | noclean (to run a "make installclean") (hint: installclean is usually enough to build without errors)
Parameter 5: The apk package name you want to build, for example SystemUI
** build_kernel.sh **
Command example: build_kernel.sh taimen user
Parameter 1: The device tree: angler | taimen | others
Parameter 2: The build type: userdebug | user