audiowaveform question

Hi

I have mp3 files not stored at my server but stored online at other www address like https://otherdomain.com

I have installed wavesurfer successfully but the mp3s are not small and the waveforms take a lot of time to appear.

Can I use audiowaveform to save waveforms still or not?

If yes... should I have the audiowaveform software installed on my server or at the https://otherdomain.com server for waveforms creation to work?

Can I read mp3s from https://otherdomain.com server and automatically create and save waveforms for later usage to my server (or the https://otherdomain.com server) somehow?