k3s customizable listen port

[blast-hardcheese]

Resolves #467

• upgrade nix infrastructure to support golang 1.23.x
• formatting
• exposing a way to customize the k3s listen port

[blast-hardcheese]

one more change required for nix flake fixes

[blast-hardcheese]

OK. Also tested nix build as well as consuming this branch via flake.

[abiosoft]

That is impressive, thanks :)

I however prefer the variable is simply port instead of listenPort.

[abiosoft]

I need to push out a hotfix and couldn't wait any longer for the needed changes.
I have created #1419 and moved your commits over to ensure you get the credit.

Thanks :)