#Unpacking and repacking APKs for Android
sudo apt install apksigner zipalign apktool
#####MAKE SURE YOU HAVE THE NEWEST RELEASE!!!!!!!!!!!!!
#or get current release
# https://github.com/iBotPeaches/Apktool/releases/
wget "https://github.com/iBotPeaches/Apktool/releases/download/v2.7.0/apktool_2.7.0.jar"
#list apks on device
adb shell pm list packages -f -3
#pull apk from device
adb pull /data/app/com.stupid.name-yX7iNj2s_26_re5bRH-Hfw==/base.apk
#unpack apk
apktool d base.apk
#or if jar file downloaded from git
java -jar apktool_2.7.0.jar d base.apk
#make changes and repack
####To make home screen launcher add this to AndroidManifest.zml#####
apktool b base
#or if jar file downloaded from git
java -jar apktool_2.7.0.jar b base
#alg
zipalign -f -p 4 base/dist/base.apk myapp.apk
#create key to sign with - and password for key
keytool -genkey -v -keystore release.keystore -alias example -keyalg RSA -keysize 2048 -validity 10000
#sign the apk - remember the password you just created
apksigner sign --ks release.keystore myapp.apk
#install on device
adb install myapp.apk
##Note, if the app is already installed with a different key you will need to uninstall it first