Every Mac eventually develops a second life made of residue.
Not your documents. Not the things you knowingly keep. The other layer. Cache buildup, old backups, build artifacts, logs, invisible little system habits that never asked permission and never announced how much room they were taking.
That is the problem Hidden Bastard was built to solve.
The name is the joke. The behavior is not.
What makes this kind of clutter irritating is not only the space it consumes. It is the way the machine gaslights you about it. Storage fills up. You delete the obvious things. The numbers barely move. The system offers gentle suggestions that treat the problem like personal disorganization when half the time the real answer is years of hidden accumulation in places most people have no reason to inspect manually.
That is especially true for developers, but it is not limited to them. A long-time Mac can carry old iOS backups, browser caches, failed app leftovers, logs nobody has read in years, and build junk from projects that died three laptops ago. The machine keeps history even when the user thinks the story is over.
Hidden Bastard is useful because it stops being vague about that. It goes looking for the files and folders most people never think about until the drive starts coughing. It turns the invisible layer into something countable. Once the mess is named, cleaning it becomes a decision instead of a superstition.