Playback multiple audio sources in sync in 2020


So, after digging through this forum I was able to find a few threads about a user called Kraken who created a PositionableMixerAudioSource to do this. I found the github repository with the necessary code: juced/apps/jost/src/model at master · kunitoki/juced · GitHub

Just wondering is this still the best method to playback multiple audio sources in sync?