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config/boards/shields/hillside46/README.md

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+Hillside 46 is a split ergonomic keyboard with 3x6+5 choc-spaced keys.
+It has the aggressive stagger of the Ferris but a longer thumb arc and a break-off outer pinkie column.
+More information is at [github/mmccoyd](https://github.com/mmccoyd/hillside/).
+
+The default keymap is described in
+  [QMK](https://github.com/qmk/qmk_firmware/tree/master/keyboards/handwired/hillside/46).
+  
+For ZMK, the adjust layer has a few differences from the QMK version:
+
+- Extra keys for bluetooth, reset and output.
+- No swap Alt GUI keys.
+- No RGB controls as RGB eats power.
+- Bluetooth clear is deliberately in an inconvenient spot to avoid unpairing.
+
+If used, the following must be manually enabled in hillside46.conf:
+
+- Encoders
+- Underglow
+
+If desired, you could hardwire a display to the I2C header,
+  which is arranged for a haptic feedback board.