fatal: unable to access 'https://github.com/nvm-sh/nvm.git/': Couldn't connect to server

[lautiamkok]

trafficstars

I am running on Ubuntu 22.04 on ARM, using ipv6 only, and I got the following error:

$ curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 15916  100 15916    0     0   128k      0 --:--:-- --:--:-- --:--:--  129k
=> Downloading nvm from git to '/root/.nvm'
=> Cloning into '/root/.nvm'...
fatal: unable to access 'https://github.com/nvm-sh/nvm.git/': Couldn't connect to server
Failed to clone nvm repo. Please report this!

[ljharb]

Sounds like you can't connect to github. Are you able to clone github repos?