How so? Doing an online meeting is way more sustainable than for example flying to somewhere to have a discussion in person.

The article is mostly about development tools

Because this part of Switzerland used to run many spinning/weaving mills with water power from the Alps. These factory halls are now standing empty as the textile industry all moved away to the countries with cheaper labor. These are old but very well built, stable buildings, and making a data center out of them made perfect sense.

It's back

Just to be open about it, I'm working for devuanhosting actually. :)