You can run your own local mirror for deb packages. In a pinch, you can grab the deb files from a machine that already has them installed and copy them to the new machine.

When doing projects in AWS China, we end up caching lots of stuff, e.g. ruby gems. It can be super slow and unreliable to get through the Great Firewall.

You can also use ASDF to manage Elixir, Erlang and Node. That makes it easier to manage multiple versions.

You can always use prebuilts from GitHub or build and install from source.

Or you can just wait until the network self healed. Usually such a hiccup should not take longer than a day.

what I saw is that http://www.erlang-solutions.com/ (without the https) is now a parked domain - so it seems like it’s gone for good

For me it just works as usual, I get redirected to HTTPS and see the website I see there every time I visit the page.

Same as Nobbz for me.