To install Tinderbox, download the disk image (DMG) and double-click it to mount the image. Drag the application icon onto the shortcut to your Applications folder to install the app. If installing over an existing version you will be asked if you wish to replace it or to keep both versions. For normal use, replace any existing version.
If the mounted image contains no shortcut to Applications (e.g. with beta builds), simply open a Finder window showing the Applications folder and drag the drag the new app icon onto it.
Once installed, open the Applications folder, find the Tinderbox icon and double-click it to open Tinderbox. On very first use you will be asked for permission to open the app, as part of standard Mac security procedures.
Multiple versions
For users with more specialist needs or those just wishing to test a new version before over-writing their existing version, Tinderbox can be installed pretty much anywhere (for which your account has permissions). Note that if several versions are installed, they will share the same application support folder.
Note that if using multiple versions in different locations and using AI with an MCP bridge, the AI settings will hold the version/location of the app as at the time AI was last enabled.