# Posts

> Product notes and engineering write-ups.

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LLMS index: [llms.txt](/llms.txt)

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Section pages:

- [Capslock goes native](/blog/post/capslock-goes-native/): Capslock started as a Karabiner-Elements configuration. It is now a native Mac app that keeps the same layout and adds an editor, app rules, lessons, and a way to always get Caps Lock back.
- [How Capslock works: F18, an event tap, and a mapping it gives back](/blog/post/how-capslock-works/): Caps Lock is a poor modifier as macOS delivers it. Capslock remaps it to F18, reads it from an active event tap, and changes only the part of the system key mapping it owns.