To browserify the javascript run browserify or watchify ie: watchify src/fingers.js -d -o dist/script.js -v

Either use the included SWF file, or compile from source with the Flex SDK via: mxmlc -o finger.swf Finger.as

The Flex SDK can be downloaded from https://www.adobe.com/devnet/flex/flex-sdk-download.html If compilation fails with error Error: This Java instance does not support a 32-bit JVM., open the mxmlc file and set D32='' on line 47.