[`midiin.open_port`](https://github.com/celtera/libremidi/blob/95584d139f19f3128cb95bd279cdfa6191e77a5f/examples/backends/midi1_in_pipewire.cpp#L32) always fails at [`link_ports`](https://github.com/celtera/libremidi/blob/95584d139f19f3128cb95bd279cdfa6191e77a5f/include/libremidi/backends/pipewire/helpers.hpp#L366). On logging, [midi](https://github.com/celtera/libremidi/blob/95584d139f19f3128cb95bd279cdfa6191e77a5f/include/libremidi/backends/pipewire/helpers.hpp#L363) has size 0, while I do have midi ports.