Built, really? From what I have seen, it is more like knockoffs, strictly worse than the original except that they are free, and unlike cracks, presumably legal.
I agree with the other two, though it is getting close to the cracking scene, which is certainly cool, but a bit different in sprit to what led to Linux and Wikipedia.
What we are seeing more of is "I had this specific need and I quickly vibecoded some software to do it". This is actually really cool, but it doesn't scale. These tools answer to the need of one person, they may break everywhere else but who cares, it does the job. But for a community project, it is not acceptable, everything has to work for everyone.