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Show HN: Mantle – Remap your Mac keyboard without editing Kanata config files

gsteezy Friday, March 06, 2026

I built Mantle because I wanted homerow mods and layers on my laptop without hand writing Lisp syntax.

The best keyboard remapping engine on macOS (Kanata) requires editing .kbd files which is a pain. Karabiner-Elements is easy for simple single key remapping (e.g. caps -> esc), but anything more wasn’t workin out for me.

What you can do with Mantle: - Layers: hold a key to switch to a different layout (navigation, numpad, media) - Homerow mods: map Shift, Control, Option, Command to your home row keys when held - Tap-hold: one key does two things: tap for a letter, hold for a modifier - Import/export: bring existing Kanata .kbd configs or start fresh visually

Runs entirely on your Mac. No internet, no accounts. Free and MIT licensed

Would love feedback, especially from people who tried Kanata or Karabiner and gave up

Summary
Mantle is a new blockchain platform that aims to revolutionize decentralized applications (dapps) by offering improved scalability, security, and developer experience. The platform features a unique consensus mechanism and a modular design to enable seamless integration with existing blockchain infrastructure.
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Summary
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