I'm not sure this is going to work for you though, it seems to make you go through a tunnel service that MS is running on vscode.dev. Look at the flow they des

I'm not sure this is going to work for you though, it seems to make you go through a tunnel service that MS is running on vscode.dev. Look at the flow they describe and it has you getting an auth code after github login and using that code on vscode.dev to access the server instance. If you haven't seen it already coder has a nice VS code server instance that runs like a traditional self-hosted server app and could likely be run in an airgapped environment: https://github.com/coder/code-server https://github.com/coder/code-server