qmk and via

Position Key Comment
Shift MT(MOD_LSFT, KC_ESC) shift and esc
Tab LT(3, KC_TAB) hold to num layer, tap to tab
/ LT(3, KC_SLSH) hold to num layer, tap to /
; LT(3, KC_SCLN) hold to num layer, tap to ;
Z LT(2, KC_Z) hold to symbal layer, tap to Z

home row mods

Position Key Comment
F MT(MOD_LSFT, KC_F) or LSFT_T(KC_F) F is left shift
J MT(MOD_RSFT, KC_J) or RSFT_T(KC_J) J is right shift
capslock MT(MOD_LCTL, KC_ESC) hold ctrl, tap to esc It appears to be a bad idea to combine ctrl and esc to tap and hold, it causes issue in tmux, for example: `ctrl-b 1`, and when press ctrl-f (for fish autocomplate), if I press enter fast, it may inserts newline instead of execute, it aslo introduce odd issue with vim being started when typing in shell. Given how often I use ctrl, I leave it as just ctrl

base layer:

symbols layer:

number and navigation layer:

most used symbols in javascript 

' (single quote) 459399
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. 323787
) 285722
( 285708
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; 179663
: 156458
{ 124037
} 123979
/ 112632
_ (underscore) 96242
- (minus) 58648
[ 44598
] 44597
" 38995
> 37014
* 35843
+ 28293
& 25646
| 22260
\ 16671
` 14626
! 14180
? 11695
$ 11600
< 10947
# 9680
@ 9311
^ 2300
% 1400
~ 414

a mostly typescript repo: 

. 740274
, 635516
: 471307
' 392677
( 365584
) 365463
" 356399
= 356272
- 334150
/ 302331
_ 255728
; 243441
{ 168294
} 168184
* 112263
[ 83673
] 83655
& 66484
| 62848
\ 50771
+ 36781
@ 35879
? 34702
> 32352
! 24897
` 23778
$ 19489
< 19019
# 17744
% 6851
^ 4309
~ 558