Easily install any proprietary marketplace.visualstudio.com/ extension in third-party VSCODE clients.
You can either use the full url or just the extension id/codename. Specify as many extensions you want.
From your CLI in a live system
curl -sL https://git.io/mpvsix | bash -s -- \
"GitHub.copilot" \
"https://marketplace.visualstudio.com/items?itemName=WallabyJs.wallaby-vscode"
With Dockerfile
# ...
RUN curl -sL https://git.io/mpvsix-gp | bash -s -- \
"GitHub.copilot" \
"https://marketplace.visualstudio.com/items?itemName=WallabyJs.wallaby-vscode"