FutureBasic's latest version requires macOS 10.13+. Please follow these installation steps:

• Install Apple's Xcode app via their Mac App Store (MAS).
• Launch Xcode and allow it to download and install any additional tools. Xcode's prompt looks like this:

• After you've allowed Xcode to download any additional files, Quit the Xcode app. If Xcode's installation is satisfactory, you won't need to run it again to use FutureBasic.
• Download the latest FutureBasic version and move it to the standard /Applications directory.
• Launch FutureBasic.
• Create a new file (⌘N), type some code (see brief sample below) in the document window and run it (⌘R).
  
  
  window 1
  button 1
  
  HandleEvents