colemak-reference.md

summary	Quick reference card for Colemak keyboard navigation across all tools.
read_when	Configuring keybindings for a new tool or remembering Colemak nav keys.

Colemak Quick Reference

Core Navigation

         e (up)
          ↑
h (left) ← → i (right)
          ↓
         n (down)

HNEI replaces HJKL in all tools.

Tool-Specific Bindings

Neovim

Colemak	Action
h/n/e/i	Left/Down/Up/Right
u	Enter insert mode (was i)
U	Insert at line start (was I)
s	Delete (was d)
j	Yank/copy (was y)
jj	Yank whole line (was yy)
l	Undo (was u)
k	Next search match (was n)
y	Open line below (was o)
o	Paste after (was p)
;	Enter command mode (no Shift)

Tmux (prefix: C-a)

Key	Action
C-a h/n/e/i	Navigate panes (L/D/U/R)
C-a H/N/E/I	Resize panes (L/D/U/R)
C-a -	Split horizontal
C-a _	Split vertical
C-a Space	Next window
C-a Tab	Last window

Tmux Copy Mode

Key	Action
h/n/e/i	Navigate (L/D/U/R)
v	Begin selection
j	Yank to clipboard
C-c	Copy to pbcopy

Mnemonic

The Colemak home row is: a r s t d h n e i o

Navigation keys h n e i sit on the right side of the home row, in the same relative positions as QWERTY's h j k l.

Adding Colemak to New Tools

When configuring a new tool with vi-style keybindings, apply these remaps:

h → h  (left, unchanged)
j → n  (down)
k → e  (up)
l → i  (right)

Then remap displaced keys:

• n (next search) → k
• e (end of word) → f
• i (insert) → u