Never happened? Has it been retconned?
brisk
They deliberately removed code search for not logged in users almost immediately. Just recently they removed cloning without an account, so now updating my computer requires signing in to github.
They have been awful stewards.
Git doesn't have a concept of a preferred repository; your local copy is exactly as valid to git as a git server hosted on github.
The originally intended workflow as I understand it involved generating patches which would be shared via a mailing list.
In practice there will generally be a repository that's considered "canonical" for a project, whether that's the one on the computer of the lead maintainer or some hosted solution.
A basic git server is essentially just a repository owned by a restricted user with SSH access granted to maintainers.. This can allow users to push and pull from a centralised or semi-centralised repository in much the same way as GitHub.
Was this posted somewhere other than twitter?
It supports other hardware including more "embedded" systems. I've run it on a RasPi clone and on an F4 Clone
Mixed material objects cannot (generally) be recycled. This is focused on multi-material prints, so you can easily split out your PLA and TPU etc. for recycling. Also good if you're directly recycling into new filament.
Can you expand on this? My experience with Argon is looking up a Wikipedia page in response to this comment, but it looks like it uses a salt as an input?
It's for separating materials for recycling, not compost.
https://xkcd.com/1109/