GlassMFA is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
http://creativecommons.org/licenses/by-nc-sa/4.0/
You can find them in the 'releases' directory
I've written a simple utility to create a QR code from your existing TOTP secrets into something that Glass can consume. You can find it in qr-creator directory. It is compiled for every major platform.
Here's how to use it.
totp-qr <label> <secret> <output_file_path_for_png>