All of my interactions with German immigration have not only happened in Germany, but at an office in the town I was living in at the time: the initial residence permit application, the first renewal, and the renewal where the Beamterin (government employee) helpfully pointed out that as the spouse of a German citizen, I had been resident long enough to go ahead and apply for a Niederlassungserlaubnis (permanent residence; aka, German equivalent of a Green Card).
Six weeks and 255 Euro later, it was in my hand. I have to “renew” it every ten years, but that’s only because the card needs to match my US passport number (and means I don’t have to carry that book around); there’s no interview or document gathering.
Right those are niches like hobby farms. There is a market but it has a pretty distinct shape. The broader point was a machine like this is not changing farming.
I've seen this on the Autobahns: what were just parking spots with unattended bathrooms are becoming little charging stations. Since I don't have an EV yet, I've not stopped at one to see how high-speed the chargers are, but at the very least, I assume that 10-15 minutes would be enough to get you somewhere more efficient/pleasant to wait for a full charge.
I've run into this, too, and found it hilarious because I remember when some sites wouldn't allow you to sign up with hotmail, gmail or other free email provider (over 20 years ago).
Right now, they're about 300 EUR at OBI (major home improvement chain in Germany and Austria) if you don't care at all about avoiding ties to specific apps, and about 1000 from solar specialists if you want to go with the more flexible Hoymiles + OpenDTU inverter setup, 4 panels and a 2kWh (or so) battery, and is one of the few things that has gotten cheaper recently.