What solo-founder products launched today
PanicLock's shape is copyable — a tight wrapper for one sudo command, sold as a $5 one-time "security paranoia" product. The category is wide open because the actual buyer is a journalist or lawyer who does not read HN.
When the one-liner gets posted publicly within 60 minutes of the Show HN, willingness-to-pay for the GUI wrapper decays fast. This is a 2-week window, not a 2-year business.