If you see something like 'ffmpeg' is not recognized as an internal or external command, operable program or batch file., then you're in luck, cuz they're fixable!
| Select your OS | Link |
|---|---|
| Linux/BSD | Link |
| macOS | Link |
| Microsoft | Link |
If you are using Linux/BSD operating systems, you can download the software by using your package manager (for example, for Debian/Ubuntu based distros it would be sudo apt-get install ffmpeg) or here
If you are using macOS, download that thing here
If you are using Windows, simply download that thing here