flake-update-20260505

ZSA Moonlander QMK Config

Custom QMK firmware for the ZSA Moonlander split keyboard (72 keys, STM32 MCU, RGB backlighting).

Features

  • Layouts: Bépo (primary), ErgoL, QWERTY
  • Home row mods (280ms tapping term), smart numword layer
  • Combos, key overrides, leader key, tap dance
  • French accents (US International layout), repeat key

Build & Flash

./go.sh build   # Build firmware (output: build/qmk_firmware/.build/)
./go.sh flash   # Build and flash (press reset button when prompted)
./go.sh update  # Update QMK submodules
./go.sh clean   # Clean build artifacts

Keymap Visualization

Moonlander Keymap

Note: Combo definitions are automatically parsed from keymap.c during visualization generation via parse-combos.sh.

Layers

Layer Name Description
L0 Bépo Primary French layout, home row mods, numword activation
L1 ErgoL Alternative French layout
L2 QWERTY Standard layout with home row mods
L3 Symbols Programming symbols, brackets, operators
L4 Numbers Numpad layout (auto-disable after 5s)
L5 Navigation Arrows, page nav, media controls
L6 Mouse Mouse emulation
L7 Modifiers Additional modifiers and function keys

Home row mods (Bépo): Left: A(GUI) U(Alt) I(Shift) E(Ctrl) ,(Hyper) | Right: C(Hyper) T(Ctrl) S(Shift) R(Alt) N(GUI)

Configuration

Timing

  • Tapping: 280ms | Quick tap: 100ms | Flow: 150ms | Combo: 40ms | Numword timeout: 5s

Combos & Overrides

  • Layer switching, Escape, special chars (|@#$/&-_=), brackets
  • Bépo overrides: Shift+^=!, Shift+.=:, Shift+,=;, Shift+numbers, RAlt+B=|, RAlt+Space=_

French Accents (US International)

é è ê à â ù û î ô ë ï ç € (uppercase variants supported)

QMK Features

Enabled: Combos, key overrides, leader key, repeat key, tap dance, layer lock Disabled: Audio, caps word, auto shift, console, most RGB effects (size optimization)

Usage

  • Layout switching: Bépo (Nav+Shift), ErgoL (Q+P), QWERTY (Numb+Symb), or via leader sequences
  • Numword: Hold Space on Bépo layer (auto-disable after 5s)
  • Leader key: Combo Del+RAlt (right thumb cluster, 300ms timeout per key)
  • Mouse toggle: Combo Q+R

Leader Key Sequences

The leader key is activated by pressing Del+RAlt simultaneously (right thumb cluster). After activation, you have 300ms to press each subsequent key in the sequence.

Layout Switching (Leader + L + key)

Sequence Action
l b Switch to Bépo
l e Switch to ErgoL
l q Switch to QWERTY

Development Patterns - General (Leader + C + key)

Sequence Output Notes
c n nil Go/common nil keyword
c e if err != nil { Go error handling pattern
c l console.log() Cursor positioned inside ()
c p fmt.Println() Cursor positioned inside ()
c f function() {} Cursor positioned inside {}
c a () => {} Arrow function, cursor inside {}

Development Patterns - Python (Leader + P + key)

Sequence Output Notes
p i if name == “main”: Python main block
p d def (): Function definition, cursor at name
p c class : Class definition, cursor at name
p p print(f"") f-string print, cursor inside quotes
p t try:…except Exception as e: Try-except block
p w with open("", “r”) as f: File context manager, cursor at path

Development Patterns - Emacs Lisp (Leader + E + key)

Sequence Output Notes
e d (defun () Function definition, cursor at name
e i (interactive) Interactive declaration
e l (let (( Let binding
e s (setq ) Set variable, cursor at name
e m (message “”) Message output, cursor inside quotes
e r (require ‘) Require package, cursor after quote

Development Patterns - Nix (Leader + N + key)

Sequence Output Notes
n f { pkgs, … }: Nix function signature
n l let…in Let expression, cursor in body
n w with pkgs; […] With statement, cursor in list
n i inherit ; Inherit, cursor before semicolon
n b buildInputs = [ ]; buildInputs, cursor in list
n p pkgs.writeShellScriptBin "" Shell script, cursor at name

Import Patterns (Leader + I + key)

Sequence Output Notes
i p import Python simple import
i f from import Python from import, cursor at module
i n { pkgs }: {…} Nix module definition
i e (use-package Emacs use-package declaration

Personal Macros (Leader + M + key)

Sequence Output Notes
m e vincent@sbr.pm Email address
m g Vincent Demeester vincent@sbr.pm Git signature format
m s –Vincent Demeester… Email signature
m t <Ctrl+U> Timestamp placeholder

Application Shortcuts (Leader + A + key)

Sequence Keybind Action
a d Mod+D Launch fuzzel app launcher
a e Mod+Shift+Enter Launch Emacs client
a t Mod+Enter Launch Terminal (kitty)
a j Mod+Control+D Emoji picker (rofimoji)
a v Mod+Control+V Clipboard history (cliphist)
a r Mod+Shift+D Raffi launcher

Note: These shortcuts match your niri window manager configuration.

Development

Files: config/{config.h, keymap.c, layermodes.{c,h}, rules.mk}, go.sh

Inspirations and References