Terminology
===========

- **Frontend**: the XDG Desktop Portal service itself. This is what provides the
  APIs that *apps* interact with.
- **Backend**: desktop-specific implementation of portal interfaces. This is
  what provides the user interfaces that *users* interact with.
- **Host system**: the privileged, unsandboxed part of the system stack.
- **URI**: A Uniform Resource Identifier as described at `RFC 3986
  <https://datatracker.ietf.org/doc/html/rfc3986>`_.
