Very unique mechanic, great tutorial. Minimal and polished, nice job!
Linux build did not work on Ubuntu 18.04, complains about my glibc being too far behind.
Viewing post in Sam Can II - Valley of Flying Rocks jam comments
Glad you like it and thanks for your report. I had hoped to prevent this problem by using the export templates linked on the jam's page, but I guess they updated their build machine. I did a build of the export template myself and uploaded a custom version for Ubuntu 18.04. Please have a look at it and see if it runs for you!