Custom server (genai-toolbox) not loading with mcphub.nvim

[LoneExile]

Ok, Got it

{
  "mcpServers": {
    "postgres_toolbox": {
      "name": "PostgreSQL Toolbox",
      "description": "Google GenAI Toolbox for PostgreSQL database access",
      "command": "toolbox",
      "args": ["--prebuilt", "postgres", "--stdio"],
      "env": {
        "POSTGRES_HOST": "${POSTGRES_HOST}",
        "POSTGRES_PORT": "${POSTGRES_PORT}",
        "POSTGRES_DATABASE": "${POSTGRES_DATABASE}",
        "POSTGRES_USER": "${POSTGRES_USER}",
        "POSTGRES_PASSWORD": "${POSTGRES_PASSWORD}"
      },
      "autoApprove": ["list_tables"],
      "disabled": false
    }
  },
  "nativeMCPServers": {}
}