LICENSE.txt

Except where otherwise stated, this software is licensed under the
Creative Commons Attribution-NonCommercial 4.0 International License.
To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/
or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.

Exception(s):

OpenStreetMap data is (necessarily) licensed under their Open Database License.
For full information, please visit: https://www.openstreetmap.org/copyright
Note that the software does not make use of any particular map dataset,
and therefore the map data is not part of the software itself.
Any such dataset included (including any references in the source code)
is merely to help test or demonstrate how the software might be used.
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Unofficial "Human" English below (unofficial/informal/legally non-binding):

My entire goal in releasing this software is to help advance research in this area.
That means I intend it to be open for academic, personal, and hobby use
(including, for example, school hackathons or university research).

If you think you might not be able to use this software for academic research
because (for example) your use might be legally fall under "commercial" use,
please contact me so we can find a solution, because my entire intention is that
this software be open for research. If it's not, it's defeating my entire goal.

Regarding commercial use:
This is probably a moot point because I honestly don't see this software as
production-quality and I think it's unlikely anyone can monetize it,
but if you would nevertheless like to use it commercially, please contact me,
and I'd obviously be very happy to work out a license that works with you.

Cheers!