syncplay

Install command: 
brew install --cask syncplay

Name: Syncplay

Synchronises media players

https://syncplay.pl/

Cask JSON API: /api/cask/syncplay.json

Cask code: syncplay.rb on GitHub

Current version: 1.7.4

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
syncplay 24
Installs (90 days)
syncplay 89
Installs (365 days)
syncplay 321