This question if more suited for an AIR or Flex forum. For what it’s worth I use VSCode to build and debug my Mac Air app. More information here.
[1] Home · BowlerHatLLC/vscode-as3mxml Wiki (github.com)<https://github.com/BowlerHatLLC/vscode-as3mxml/wiki> From: Isabelle LOYER<mailto:i.lo...@intersystemes.fr> Sent: Wednesday, January 19, 2022 4:27 PM To: users@royale.apache.org<mailto:users@royale.apache.org> Subject: IDE to build AIR macOS apps Dear Flex users, Witch IDE to choose to build AIR macOS apps that run natively on both Apple silicon (Universal Binary) and Intel-based Mac computers ? Best regards --