Running Chatledger requires the Antigravity IDE. Once you have Antigravity installed, you can add the Chatledger extension via the marketplace.
Marketplace Installation
Chatledger is published on the Open VSX Registry and can be installed directly
within Antigravity.
Open Extensions View
In Antigravity, click on the Extensions icon in the Activity Bar or press
Ctrl+Shift+X (macOS: Cmd+Shift+X).
Search for Chatledger
Type chatledger-antigravity in the search bar.
Install
Click the Install button. The extension will be downloaded and activated
automatically.
