You’re making it for fun. You’ve achieved your desired fun, and lost nothing if some rando takes it and makes another fun project, or big mega corp uses it.
What’s gonna stop them from just stealing it anyways? Why would they care about Joe Shmoe when they have infinite number the lawers you have? Also AI kinda makes this irrelevant because it will rewrite the code in a way that’s probably not protected, or at least provide enough shielding that their 10000 lawyers will.
Also also, what about all the mega corps that already use linux? That’s free an open source and they’re free to run their proprietary code on it. If you’ve ever contributed to linux, or any tool that’s built into a distro you’re not this supposed loser who’s done free work for a big tech company. It’s silly to complain about this.