If your system doesn't have it, run sudo apt install flatpak (Ubuntu/Debian) or the equivalent for your distro.
Below is a comprehensive guide on how to download and install Snes9x using various methods, along with initial configuration tips. 1. The Easiest Way: Universal Package Managers
If you want a "one-click" style installation that works across almost any Linux distribution, universal package managers like or Snap are your best bet. Method A: Flatpak (Recommended)
