The app should open now with Compartment ready to add. If it did not, open it by hand.
Before the first run, install the package and create the vault once: pip install compartment && compartment init. The vault is encrypted under a passphrase you choose, and nothing leaves your machine.
Manual setup: in LM Studio open the MCP configuration (Program, then Install, then Edit mcp.json) and add:
{
"mcpServers": {
"compartment": {
"command": "compartment",
"args": ["--caller", "lm-studio", "serve"]
}
}
}