Docker

Alternatively you can build and use the docker image to have a readily available environment. Ensure you have a folder containing your XAPK to mount to the container.

docker build -t xapktoapk .
docker run --rm -it -v ./data:/mnt/data xapktoapk /mnt/data/app.xapk

You may optionally mount your own properties and truststore.

docker build -t xapktoapk .
docker run --rm -it \
	-v ./data:/mnt/data xapktoapk /mnt/data/app.xapk \
	-v ./home/username/.android/debug.keystore:/mnt/debug.keystore:ro \
	-v ./xapktoapk.sign.properties:/xapktoapk/xapktoapk.sign.properties:ro \ # `sign.keystore.file` should point to `/mnt/debug.keystore`
	xapktoapk \
	/mnt/data/app.xapk

The converted .apk file will be available in the data folder.