[nhooyr]

code-server also lets you customize the marketplace URL at runtime.

https://github.com/cdr/code-server/blob/master/doc/FAQ.md#ho...

  SERVICE_URL=https://open-vsx.org/vscode/gallery
  ITEM_URL=https://open-vsx.org/vscode/item

So you can use open-vsx, ours or Microsoft's (with the caveat that you would violate their license).

See this thread: https://github.com/microsoft/vscode/issues/31168#issue-24453...