layers/vyos-proxy/layer.yaml

"options":
  "basic":
    "packages":
    - "python-dev"
    - "libffi-dev"
    - "libssl-dev"
    "use_venv": !!bool "false"
    "include_system_packages": !!bool "false"
  "vyos-proxy": {}
"includes":
- "layer:basic"
"is": "vyos-proxy"