How to build .zip release for OH2?

How shall I proceed to build a release like the ones cloudbees do?
I read through several times and did not succeed.

Running mvn install in openhab-distro didn’t output any .zip files as I could find at least.

Could someone give me some direction?

It does! Look into the folder distributions/openhab/target/, here’s the proof:

There was it. Missed it !