Installation instruction clarification

[scope2229]

I might just be being a bit daft. I can't figure out how to install the package. The instructions say

Run code-server according to the instructions in the installation page above and point your browser to the url of your code-server
installation. If everything looks OK, you are ready to start setting up vscode-live.

But they also say

Unfortunately, this is NOT a vscode extension. This is a full port of vscode, and thus cannot be simply plugged in to an existing
installation.

Does this mean I have to create my own docker image to bundle this project and then install using the same instructions as code-server with the added firebase setup ?

Or can i ssh into an existing code-server container and run the install.sh script from there ?