0. Unzip (by Double-clicking) on the ZIP file you downloaded.
1. Double-click on the '2dtest-macos.tar' file.
2. Double-click on the '2dtest-macos' folder. (The folder may have a number at the end if you have downloaded Ronsor Builder before.)
3. Right-click (right side of touchpad/mouse) on the RonsorBuilder.command file.
4. Select "Open" in the menu.
5. When prompted, select "Open" on the dialog blox.