Capsomnia

Capsomnia is a lightweight, open-source utility designed for Mac users who need to keep their laptops awake even when the lid is closed. By turning the Caps Lock key into a dedicated switch, it allows users to maintain active processes such as AI agents, SSH sessions, code builds, downloads, and other background tasks without interruption. Its simplicity and focus on a single, effective feature make it particularly appealing to developers, power users, and Mac enthusiasts who require continuous operation without the hassle of changing system settings manually. The app's design is minimalistic, showing the Caps Lock indicator to confirm active status, and it offers customization options if the default shortcut is already in use. Being signed and notarized, as well as free and open-source, adds to its appeal for those who prefer transparent, community-driven tools. The significant interest in Japan highlights its global relevance and practical utility for technical users worldwide.