The on-prem version of this repo depends on the `cockpit` project. Some
of the files from the `cockpit` repo are needed to build and run this
project. These files are saved into the `pkg/lib` directory, this commit
adds some convenience scripts to the Makefile to do this.
I don't think there's a value in having the unit encoded in base64.
It looks fishy, and it's error prone. We discovered that the
custom-first-boot.service file in aux was different than the base64-
encoded string. There was nothing malicious, but we apparently forgot
to rerun the Makefile target.
Instead, we can just put the raw script into constants.js and base64-
encode it on the fly. The cost is close to zero.
This way, we can also get rid of the aux dir, and of the Makefile
target. 🧹
