They have made M3U suppot available as beta, and one of the developers built a little more robust example of what could be done with it. I don't think they have ever said that Pluto was a fully supported, easy to install, robust part of the product. You can add the non-Docker approach which is dead simple. The Docker approach is really not hard, but I get the challenge to wrap your head around what its doing and/or troubleshoot it if it doesn't work first try. I'd never touched Docker before and was able to get it up and running in about 10-15 minutes. I didn't try to wrap my head around what its doing, I just followed the steps, which are:
- Setup the Docker environment on your preferred platform - for me was Mac... and it involved an OS update to my 2012 Mac to support Docker.
- Run the Docker command that was provided in Docker.
- Add the source to Channels DVR.
You need a url in there and figuring that out was the most difficult for me. The challenge with fully supporting something like this would be to have documentation to support all the myriad of environments and version of Docker people might chose, etc. So it is what it is... an "example" of how to use M3U beta support to do Pluto.