That whole article looks and reads like an automatic translation. I’m guessing the original says “Ist der Lilium Jet eine Luftnummer?” Or perhaps “Luftpumpe”. A “Luftnummer”, an “air number”, is “hot air”. A “Luftpumpe” is an air pump but can also mean someone is a BS artist.
There’s also a bit of a bad pun hiding in there if it was “Luftnummer”, because “eine Nummer schieben” means to have sex, colloquially. If you really wanted to preserve that … you’d reach for the “blow job”.
Docker allows a mere mortal like myself with only 20+ years of sw engineering experience and a physics PhD under my belt to run a setup in something that resembles production more than a few hosted boxed cobbled together do. I vaguely know about ARP and I can just about follow along this post. So what you seem to regard as just a toy is actually what makes my work possible and/or viable.
Oh, for sure. Docker doesn't replace actually knowing what you're doing once your setup grows. But it gets you further with less upfront knowledge, especially as a lot of it is really good dev knowledge for setting up test infrastructure as well. (That's why I started using Docker.)
There’s also a bit of a bad pun hiding in there if it was “Luftnummer”, because “eine Nummer schieben” means to have sex, colloquially. If you really wanted to preserve that … you’d reach for the “blow job”.