command line – On Linux, how to play a sequence of images with audio?

I want to view a sequence of images being played with an external sound simultaneously.

I am currently using mpv "mf: //*.jpg" -mf-fps X play sequences. You do not know yet how to define an audio stream.

I am aware of the fusion of the two formats with something like ffmpeg, however; I would like to skip this part.

Preferably, I would like to use the FOSS software.

I stumbled upon a DJV developer who mentioned working on audio support in this thread (the ticket being here), thinking that I had not yet noticed any implementation in the software.