C
Capsomnia
Give Caps Lock a real job
macOS 14+Open source (MIT)6,000+ downloads2.3M+ views in JapanNo telemetry
Opportunity score
30/100
A clever, simple tool with strong viral potential but negligible revenue opportunity due to its free, open-source nature and crowded market of established free alternatives.
Founder verdict
MAYBE
Capsomnia is a beautifully designed niche utility with strong viral appeal, but it's a hobby project, not a business.
What is Capsomnia?
Capsomnia is a small, open-source macOS utility that repurposes the Caps Lock key as a physical hardware switch to keep your MacBook awake with the lid closed. It wraps the `pmset` command behind a secure privileged helper, giving developers a visible LED indicator when sleep prevention is active. The tool has gained notable traction in Japan with 2.3M+ views and 6,000+ downloads, driven by simplicity and privacy—no network requests, telemetry, or accounts. While it solves a genuine pain point for remote workers, AI agent users, and long-running processes, it currently operates as a free, hobbyist project with no monetization path.
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