.Xmodmap to map Capslock + j/k to brace left / brace right

.Xmodmap

! Forget any previous Caps Lock
clear Lock

keycode 66 =  ISO_Group_Shift ISO_Group_Shift ISO_First_Group  NoSymbol

keycode  44 = j J braceleft     Down    dead_belowdot dead_abovedot dead_belowdot
keycode  45 = k K braceright    Up      kra ampersand kra

keycode  30 = u U bracketleft   U       downarrow uparrow downarrow
keycode  31 = i I bracketright  I       rightarrow idotless rightarrow

keycode  40 = d D less          D       eth ETH eth
keycode  41 = f F greater       F       dstroke ordfeminine dstroke

README.md

Installation:

wget -O ~/.Xmodmap https://gist.githubusercontent.com/bcremer/9caa54d0432531f80c1e/raw/adf8f333fced594e2ab6ee412afa81a10dd76cf4/.Xmodmap
xmodmap ~/.Xmodmap