Here’s mine, using a fair share of Mushroom for the light buttons, the “Room” tiles are actually pretty great!

That’s a very old post but yeah, it is, so is Ghidra (a retro-engineering tool). A lot of people have had the exact same argument of “the NSA made it, it has to be evil!” but lots of security people dissected the code (the fact that it was made by the NSA probably made more people look through it in fact) and no backdoor has ever been found in years. It’s safe to use.