HN might not be the best place to ask, though. There's a heavy bias in favor of open-source tech, which explicitly allows any use case (which implies allowing military uses).

Also there's frequently a lot of comments which sing praises to SQLite, which was created literally for military purposes (according to Wikipedia, at least, so take that with a grain of salt).

What I mean with all this is, even if those examples are not related to art, there seems to be a general bias to the opposite of what you're asking for.