[Rust] Help needed to package local-agent-rs

[Mattia Verga]

In order to package Proton VPN client in Fedora repositories, Proton's local-agent-rs [1] project must be added as a dependency.
However, that project is quite a mess: under two separate subdirectories it has local-agent-rs, which is the pure rust implementation, and python-proton-vpn-local-agent, which provides the Python bindings - yet it doesn't provide a pyproject.toml, just rust Cargo.

I am a bit puzzled on how to package that... shall I proceed like they are two separate packages? In that case, can I package local-agent-rs using the usual cargo macros even if it lies under a subdirectory? And then, how do I package python-proton-vpn-local-agent which has a relative dependency on local-agent-rs?

Is there any other clever way?

[1] https://github.com/ProtonVPN/local-agent-rs