You can only cast to Chromecast by using Google's proprietary API, with Google's proprietary library. This only works on devices with Google Play services. On

You can only cast to Chromecast by using Google's proprietary API, with Google's proprietary library. This only works on devices with Google Play services. On desktop, or on Replicant, LineageOS, CopperheadOS, or Kindle OS, it doesn't work at all. This is important, especially the last part. The company at fault for missing Chromecast support in anything is always Google, because they chose not to make it an open standard, and because they chose to rapidly, sometimes even weekly, change the already obfuscated protocol, to prevent Amazon — and open source devs — from supporting it. I spent hours every week updating my reverse engineered library to connect to it, but in the end, I gave up. Now I have a very expensive brick here.