On a linux platform you should be able to execute the /build/BeagleRescue file to run it.
Other platforms not currently supported, but you can build from source with make after cd'ing to the project root directory. You will need SDL2 and SDL2-Image and SDL2-Mixer libraries installed to build the project.
"Developers": "Alan Youngblood, Simon Zaleski, Daniel Rinaldi",
"LibraryDevelopers": "Sam Lantinga, Dave Gamble, Carl Birch, Job Vranish, David Lafreniere",
"SpecialThanks":"Nic Allen, Brian Lhota"