Define: weaponry.
I imagine an autonomous sentry-turret (Half-Life, Portal, etc) comes to mind. Obviously that’s right-out.
But what about airsoft or paintball? Those are recreational activities, but in some jurisdictions their respective “guns” can be legally considered weapons because they can still do serious bodily harm - as well as intimidate.
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Another example is “Windows for Warships”: you could build this software for that, no? So, is a warship a weapon? Naval frigate? Merchant marine vessel that carries small-arms for self-defense? At what point does arbitrary hardware attached to the computer running this software become a “weapon” or not?
I’m not a rights-absolutist - I just think when writing a license with restrictions that are going to be open to interpretation get a gosh-darned lawyer involved and be as specific as possible, and then some. You don’t want a project getting bogged-down by internet nerds complaining about stuff like this. Not least an army of trolls who will spam your inbox with hair-splitting questions about the classification of firearms technology to gleefully waste your time. (“it’s not an ‘assault rifle’, it’s a ‘scary looking semi-automatic AR-15’”, “bump-stocks aren’t automatics lololol”, etc)