peterjc · peterjc · Mar 20, 2026 · Mar 9, 2026 · Mar 9, 2026
diff --git a/keyboards/goldilocks32/keyboard.json b/keyboards/goldilocks32/keyboard.json
@@ -0,0 +1,72 @@
+{
+    "manufacturer": "peterjc",
+    "keyboard_name": "Goldilocks32",
+    "maintainer": "Peter J. A. Cock",
+    "bootloader": "rp2040",
+    "diode_direction": "COL2ROW",
+    "features": {
+        "bootmagic": true,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": false
+    },
+    "matrix_pins": {
+        "cols": ["GP28", "GP22", "GP15", "GP7", "GP2", "GP26", "GP12", "GP5", "GP4", "GP14", "GP27", "GP3", "GP13", "GP9", "GP20", "GP29"],
+        "rows": ["GP21", "GP11", "GP16", "GP23", "GP0", "GP10", "GP1", "GP8", "GP6"]
+    },
+    "processor": "RP2040",
+    "url": "",
+    "usb": {
+        "device_version": "1.0.0",
+        "pid": "0x0000",
+        "vid": "0xFEED"
+    },
+    "ws2812": {
+        "driver": "vendor",
+        "pin": "GP17"
+    },
+    "layouts": {
+        "LAYOUT_default": {
+            "layout": [
+
+                {"label": "q", "hand": "L", "matrix": [0, 0], "x": 0.36, "y": 0.33, "h": 1.4, "r": 10, "rx": 0.86, "ry": 0.83 },
+                {"label": "w", "hand": "L", "matrix": [0, 1], "x": 1.4, "y": 0.05, "r": 10.0, "rx": 1.9, "ry": 0.55 },
+                {"label": "e", "hand": "L", "matrix": [0, 2], "x": 2.76, "y": 0.0, "r": 18.0, "rx": 3.26, "ry": 0.5 },
+                {"label": "r", "hand": "L", "matrix": [0, 3], "x": 3.69, "y": 0.84, "r": 22.0, "rx": 4.19, "ry": 1.34 },
+                {"label": "t", "hand": "L", "matrix": [4, 4], "x": 4.45, "y": 1.69, "r": 22.0, "rx": 4.95, "ry": 2.19 },
+                {"label": "y", "hand": "R", "matrix": [6, 11], "x": 7.0, "y": 1.69, "r": -22.0, "rx": 7.5, "ry": 2.19 },
+                {"label": "u", "hand": "R", "matrix": [5, 12], "x": 7.76, "y": 0.84, "r": -22.0, "rx": 8.26, "ry": 1.34 },
+                {"label": "i", "hand": "R", "matrix": [6, 13], "x": 8.7, "y": 0.0, "r": -18.0, "rx": 9.2, "ry": 0.5 },
+                {"label": "o", "hand": "R", "matrix": [5, 14], "x": 10.05, "y": 0.05, "r": -10.0, "rx": 10.55, "ry": 0.55 },
+                {"label": "p", "hand": "R", "matrix": [2, 15], "x": 11.07, "y": 0.33, "h": 1.4, "r": -10, "rx": 10.57, "ry": 0.83 },
+                {"label": "a", "hand": "L", "matrix": [1, 0], "x": 0.0, "y": 1.65 },
+                {"label": "s", "hand": "L", "matrix": [2, 1], "x": 1.24, "y": 1.03, "r": 10.0, "rx": 1.74, "ry": 1.53 },
+                {"label": "d", "hand": "L", "matrix": [3, 2], "x": 2.46, "y": 0.95, "r": 18.0, "rx": 2.96, "ry": 1.45 },
+                {"label": "f", "hand": "L", "matrix": [4, 3], "x": 3.34, "y": 1.77, "r": 22.0, "rx": 3.84, "ry": 2.27 },
+                {"label": "g", "hand": "L", "matrix": [7, 4], "x": 4.1, "y": 2.62, "r": 22.0, "rx": 4.6, "ry": 3.12 },
+                {"label": "h", "hand": "R", "matrix": [4, 11], "x": 7.35, "y": 2.62, "r": -22.0, "rx": 7.85, "ry": 3.12 },
+                {"label": "j", "hand": "R", "matrix": [4, 12], "x": 8.11, "y": 1.77, "r": -22.0, "rx": 8.61, "ry": 2.27 },
+                {"label": "k", "hand": "R", "matrix": [1, 13], "x": 8.99, "y": 0.95, "r": -18.0, "rx": 9.49, "ry": 1.45 },
+                {"label": "l", "hand": "R", "matrix": [1, 14], "x": 10.22, "y": 1.03, "r": -10.0, "rx": 10.72, "ry": 1.53 },
+                {"label": ";", "hand": "R", "matrix": [6, 15], "x": 11.45, "y": 1.65 },
+                {"label": "z", "hand": "L", "matrix": [7, 5], "x": 0.0, "y": 2.65 },
+                {"label": "x", "hand": "L", "matrix": [1, 5], "x": 1.07, "y": 2.02, "r": 10.0, "rx": 1.57, "ry": 2.52 },
+                {"label": "c", "hand": "L", "matrix": [2, 6], "x": 2.17, "y": 1.9, "r": 18.0, "rx": 2.67, "ry": 2.4 },
+                {"label": "v", "hand": "L", "matrix": [7, 6], "x": 2.99, "y": 2.7, "r": 22.0, "rx": 3.49, "ry": 3.2 },
+                {"label": "b", "hand": "L", "matrix": [3, 7], "x": 3.48, "y": 4.01, "r": 37.0, "rx": 3.98, "ry": 4.51 },
+                {"label": "n", "hand": "R", "matrix": [2, 8], "x": 7.97, "y": 4.01, "r": -37.0, "rx": 8.47, "ry": 4.51 },
+                {"label": "m", "hand": "R", "matrix": [5, 9], "x": 8.46, "y": 2.7, "r": -22.0, "rx": 8.96, "ry": 3.2 },
+                {"label": ",", "hand": "R", "matrix": [3, 9], "x": 9.28, "y": 1.9, "r": -18.0, "rx": 9.78, "ry": 2.4 },
+                {"label": ".", "hand": "R", "matrix": [3, 10], "x": 10.38, "y": 2.02, "r": -10.0, "rx": 10.88, "ry": 2.52 },
+                {"label": "/", "hand": "R", "matrix": [6, 10], "x": 11.45, "y": 2.65 },
+                {"label": "⬆️", "hand": "L", "matrix": [8, 12], "x": 1.25, "y": 3.25, "w": 0.9, "h": 0.9 },
+                {"label": "⬅️", "hand": "L", "matrix": [8, 6], "x": 0.35, "y": 4.15, "w": 0.9, "h": 0.9 },
+                {"label": "⏺️", "hand": "L", "matrix": [8, 13], "x": 1.25, "y": 4.15, "w": 0.9, "h": 0.9 },
+                {"label": "➡️", "hand": "L", "matrix": [8, 7], "x": 2.15, "y": 4.15, "w": 0.9, "h": 0.9 },
+                {"label": "⬇️", "hand": "L", "matrix": [8, 3], "x": 1.25, "y": 5.05, "w": 0.9, "h": 0.9 },
+                {"label": "BkSp", "hand": "L", "matrix": [7, 7], "x": 4.28, "y": 4.64, "r": 37.0, "rx": 4.78, "ry": 5.14 },
+                {"label": "Spc", "hand": "R", "matrix": [5, 8], "x": 7.17, "y": 4.61, "r": -37.0, "rx": 7.67, "ry": 5.14 }
+            ]
+        }
+    }
+}
diff --git a/keyboards/goldilocks32/keymaps/default/keymap.c b/keyboards/goldilocks32/keymaps/default/keymap.c
@@ -0,0 +1,39 @@
+// Copyright 2023 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+     /* Physical layout close to this:
+      *
+      * ┌───┬───┬───┬───┐                   ┌───┬───┬───┬───┐
+      * │ Q │ W │ E │ R ├───┐           ┌───┤ U │ I │ O │ P │
+      * ├───┼───┼───┼───┤ T │           │ Y ├───┼───┼───┼───┤
+      * │ A │ S │ D │ F ├───┤           ├───┤ J │ K │ L │ ; │
+      * ├───┼───┼───┼───┤ G │           │ H ├───┼───┼───┼───┤
+      * │ Z │ X │ C │ V ├───┘           └───┤ M │ , │ . │ / │
+      * └───┴───┴───┴───┘                   └───┴───┴───┴───┘
+      *                 ┌───┬───┐  ┌───┬───┐
+      *      (5-way)    │ B │BkS│  │SPC│ N │
+      *                 └───┴───┘  └───┴───┘
+      * Home-row mods,
+      * ASDF are Left-GUI,    Left-Alt,  Left-Ctrl, Left-Shift
+      * JKL; are Right-Shift, Left-Ctrl, Left-Alt,  Left-GUI
+      *
+      * The logical layout here is 5 rows:
+      *
+      * Q 	W 	E 	R 	T 		Y 	U 	I 	O 	P
+      * A 	S 	D 	F 	G 		H 	J 	K 	L 	;
+      * Z 	X 	C 	V 	B 		N 	M 	, 	. 	/
+      * ⬆️	⬅️	⏺️	➡️	⬇️
+      *   	  	  	  	⌫ 		␠
+      *
+      */
+    [0] = LAYOUT_default(
+        KC_Q,               KC_W,               KC_E,               KC_R,               KC_T,      KC_Y,     KC_U,               KC_I,               KC_O,                KC_P,
+        MT(MOD_LGUI, KC_A), MT(MOD_LALT, KC_S), MT(MOD_LCTL, KC_D), MT(MOD_LSFT, KC_F), KC_G,      KC_H,     MT(MOD_RSFT, KC_J), MT(MOD_LCTL, KC_K), MT(MOD_LALT, KC_L),  MT(MOD_LGUI, KC_SCLN),
+        KC_Z,               KC_X,               KC_C,               KC_V,               KC_B,      KC_N,     KC_M,               KC_COMM,            KC_DOT,              KC_SLSH,
+        KC_UP,              KC_LEFT,            KC_ENTER,           KC_RIGHT,           KC_DOWN,
+                                                                                        KC_BSPC,   KC_SPC
+    )
+};
diff --git a/keyboards/goldilocks32/keymaps/vial/config.h b/keyboards/goldilocks32/keymaps/vial/config.h
@@ -0,0 +1,10 @@
+#pragma once
+
+/* Randomly generated as per Vial docs */
+#define VIAL_KEYBOARD_UID {0x1C, 0xF4, 0xA2, 0x03, 0x11, 0x30, 0xC7, 0x53}
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 6
+
+/* Top left key at matrix 0,0 (Q) and top right of left hand at matrix 4,4 (T) */
+#define VIAL_UNLOCK_COMBO_ROWS { 0, 0 }
+#define VIAL_UNLOCK_COMBO_COLS { 4, 4 }
diff --git a/keyboards/goldilocks32/keymaps/vial/keymap.c b/keyboards/goldilocks32/keymaps/vial/keymap.c
@@ -0,0 +1 @@
+../default/keymap.c
diff --git a/keyboards/goldilocks32/keymaps/vial/rules.mk b/keyboards/goldilocks32/keymaps/vial/rules.mk
@@ -0,0 +1,2 @@
+VIA_ENABLE = yes
+VIAL_ENABLE = yes
diff --git a/keyboards/goldilocks32/keymaps/vial/vial.json b/keyboards/goldilocks32/keymaps/vial/vial.json
@@ -0,0 +1,48 @@
+{
+    "layouts": {
+        "keymap":
+        [
+            [{"r":10,"rx":0.86,"ry":0.83,"x":-0.5,"y":-0.5,"h":1.4,"h2":1},"0,0"],
+            [{"rx":1.89,"ry":0.55,"x":-0.5,"y":-0.5},"0,1"],
+            [{"r":18,"rx":3.24,"ry":0.5,"x":-0.5,"y":-0.5},"0,2"],
+            [{"r":22,"rx":4.17,"ry":1.39,"x":-0.5,"y":-0.5},"0,3"],
+            [{"rx":4.93,"ry":2.29,"x":-0.5,"y":-0.5},"4,4"],
+            [{"r":-22,"rx":6.5,"x":-0.5,"y":-0.5},"6,11"],
+            [{"rx":7.26,"ry":1.39,"x":-0.5,"y":-0.5},"5,12"],
+            [{"r":-18,"rx":8.19,"ry":0.5,"x":-0.5,"y":-0.5},"6,13"],
+            [{"r":-10,"rx":9.54,"ry":0.55,"x":-0.5,"y":-0.5},"5,14"],
+            [{"rx":10.57,"ry":0.83,"x":-0.5,"y":-0.5,"h":1.4,"h2":1},"2,15"],
+            [{"r":0,"rx":0,"ry":0,"y":1.73},"1,0"],
+            [{"r":10,"rx":1.73,"ry":1.57,"x":-0.5,"y":-0.5},"2,1"],
+            [{"r":18,"rx":2.96,"ry":1.48,"x":-0.5,"y":-0.5},"3,2"],
+            [{"r":22,"rx":3.83,"ry":2.35,"x":-0.5,"y":-0.5},"4,3"],
+            [{"rx":4.59,"ry":3.25,"x":-0.5,"y":-0.5},"7,4"],
+            [{"r":-22,"rx":6.84,"x":-0.5,"y":-0.5},"4,11"],
+            [{"rx":7.6,"ry":2.35,"x":-0.5,"y":-0.5},"4,12"],
+            [{"r":-18,"rx":8.47,"ry":1.48,"x":-0.5,"y":-0.5},"1,13"],
+            [{"r":-10,"rx":9.7,"ry":1.57,"x":-0.5,"y":-0.5},"1,14"],
+            [{"r":0,"rx":0,"ry":0,"x":10.43,"y":1.73},"6,15"],
+            ["7,5"],
+            [{"r":10,"rx":1.57,"ry":2.59,"x":-0.5,"y":-0.5},"1,5"],
+            [{"r":18,"rx":2.67,"ry":2.46,"x":-0.5,"y":-0.5},"2,6"],
+            [{"r":22,"rx":3.49,"ry":3.3,"x":-0.5,"y":-0.5},"7,6"],
+            [{"r":37,"rx":3.98,"ry":4.7,"x":-0.5,"y":-0.5},"3,7"],
+            [{"r":-37,"rx":7.45,"x":-0.5,"y":-0.5},"2,8"],
+            [{"r":-22,"rx":7.94,"ry":3.3,"x":-0.5,"y":-0.5},"5,9"],
+            [{"r":-18,"rx":8.76,"ry":2.46,"x":-0.5,"y":-0.5},"3,9"],
+            [{"r":-10,"rx":9.86,"ry":2.59,"x":-0.5,"y":-0.5},"3,10"],
+            [{"r":0,"rx":0,"ry":0,"x":10.43,"y":2.76},"6,10"],
+            [{"x":1.25,"y":-0.39,"w":0.9,"h":0.9,"w2":1,"h2":1},"8,12"],
+            [{"x":0.35,"y":-0.1,"w":0.9,"h":0.9,"w2":1,"h2":1},"8,6",{"w":0.9,"h":0.9,"w2":1,"h2":1},"8,13",{"w":0.9,"h":0.9,"w2":1,"h2":1},"8,7"],
+            [{"x":1.25,"y":-0.1,"w":0.9,"h":0.9,"w2":1,"h2":1},"8,3"],
+            [{"r":37,"rx":4.78,"ry":5.38,"x":-0.5,"y":-0.5},"7,7"],
+            [{"r":-37,"rx":6.65,"x":-0.5,"y":-0.5},"5,8"]
+        ]
+    },
+    "lighting": "none",
+    "matrix": {
+        "cols": 16,
+        "rows": 9
+    },
+    "name": "Goldilocks32"
+}
diff --git a/keyboards/goldilocks32/readme.md b/keyboards/goldilocks32/readme.md
@@ -0,0 +1,82 @@
+# Goldilocks32 keyboard firmware
+
+You can [download pre-compiled Goldilocks32 firmware](https://github.com/peterjc/qmk_userspace/releases),
+`goldilocks32_vial.uf2` with Vial support is recommended as you can the use
+the [Vial GUI tool](https://get.vial.today/) to configure your layout by point-and-click.
+This is the default keymap:
+
+![Default keymap for the Goldilocks32 keyboard QMK firmware](../../keymap-drawer/goldilocks32.svg)
+
+This is firmware for a Raspberry Pi PR2040 (or potentially RP2350) 'Pro Micro' controller
+tented monoblock 32 key design, my [Goldilocks32 keyboard](https://codeberg.org/peterjc/pico-keyboards/src/branch/main/goldilocks32).
+
+This is a *diode-free* design with a sparse 9 by 16 scanning matrix designed using this
+[25 vertex mostly girth 8 graph with 37 edges](https://houseofgraphs.org/graphs/56260).
+Excluding the degree 5 vertex used for the 5-way navigation button, that becomes a sparse
+8 by 16 scanning matrix using this [24 vertex girth 8 graph of maximal 32 edges](https://houseofgraphs.org/graphs/54531)
+(using 24 vertices or GPIO pins, with 32 edges or keys with 6KRO - see this
+[blog post](https://astrobeano.blogspot.com/2025/05/topology-meets-custom-keyboard-circuit.html)
+for background, and this more recent
+[blog post](https://astrobeano.blogspot.com/2025/12/5-way-switch-in-diode-free-graph-theory.html)
+for the navigation button addition (as done in my [Bivvy16D](../bivvy16d) keyboard.
+
+This matrix shows the 9×16 sparse bipartite scanning matrix. The keys are assigned so the
+scanning column order matches the physical columns (starting with Q and A as the first
+column), with the scanning rows sorted to ensure Q is top left as the first matrix entry.
+The allocation of keys to matrix elements and scanning matrix rows and columns
+to GPIO pins was arbitrary and down to how easy it was to layout the PCB traces:
+
+| GP | 28 | 22 | 15 |  7 |  2 | 26 | 12 |   5  |   4   | 14 | 27 |  3 | 13 |  9 | 20 | 29 |
+|---:|:--:|:--:|:--:|:--:|:--:|:--:|:--:|:----:|:-----:|:--:|:--:|:--:|:--:|:--:|:--:|:--:|
+| 21 |  Q |  W |  E |  R |    |    |    |      |       |    |    |    |    |    |    |    |
+| 11 |  A |    |    |    |    |  X |    |      |       |    |    |    |    |  K |  L |    |
+| 16 |    |  S |    |    |    |    |  C |      |   N   |    |    |    |    |    |    |  P |
+| 23 |    |    |  D |    |    |    |    |   B  |       |  , |  . |    |    |    |    |    |
+|  0 |    |    |    |  F |  T |    |    |      |       |    |    |  H |  J |    |    |    |
+| 10 |    |    |    |    |    |    |    |      | Space |  M |    |    |  U |    |  0 |    |
+|  1 |    |    |    |    |    |    |    |      |       |    |  / |  Y |    |  I |    |  ; |
+|  8 |    |    |    |    |  G |  Z |  V | BkSp |       |    |    |    |    |    |    |    |
+|  6 |    |    |    | ⬇️ |    |    | ⬅️ |  ➡️  |       |    |    |    | ⬆️ | ⏺️ |    |    |
+
+Note (aside from the bottom row for the navigation button) there are four entries for each
+row, and two for each column.
+The keys here are labeled as per Qwerty, with B, backspace, space and N for the thumbs,
+and up/down/left/right/push as ⬆️/⬇️/⬅️/➡️/⏺️ for the navigation button.
+
+| Q | W | E | R | T |       |       | Y | U | I | O | P |
+|:-:|:-:|:-:|:-:|:-:|:-----:|:-----:|:-:|:-:|:-:|:-:|:-:|
+| A | S | D | F | G |       |       | H | J | K | L | - |
+| Z | X | C | V |   |       |       |   | M | , | . | / |
+|   |   |   |   | B | BkSpc | Space | N |   |   |   |   |
+
+This minimal default layout is rendered as an image above.
+
+If you are using a single thumb key, this is electrically the same as the more tucked
+thumb (B or N by default).
+
+* Keyboard Maintainer: [Peter J. A. Cock](https://github.com/peterjc)
+* Hardware Supported: Goldilocks32 (no-diode twin PCB) using Raspberry Pi Pico
+* Hardware Availability: https://codeberg.org/peterjc/pico-keyboards/src/branch/main/goldilocks32
+* Download Firmware pre-compiled with Vial support: [goldilocks32_vial.uf2](https://github.com/peterjc/qmk_userspace/releases/download/latest/goldilocks32_vial.uf2)
+
+See also the [Goldilocks32 ZMK firmware](https://github.com/peterjc/zmk-keyboard-graph-theory/tree/main/boards/shields/goldilocks32).
+
+## Compiling
+
+Make example for this keyboard (after setting up your build environment):
+
+    make goldilocks32:default
+
+Flashing example for this keyboard:
+
+    make goldilocks32:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (top left key, Qwerty `Q`) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the front of the controller (if physically accessible from the front of the keyboard)
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/qmk.json b/qmk.json
@@ -5,6 +5,7 @@
         ["bivvy16d", "default"],
         ["bivouac34", "default"],
         ["bivouac34", "peterjc"],
+        ["goldilocks32", "default"],
         ["slump52", "default"]
     ]
 }
diff --git a/vial.json b/vial.json
@@ -4,6 +4,7 @@
         ["tutte_coxeter_36k", "vial"],
         ["bivvy16d", "vial"],
         ["bivouac34", "vial"],
+        ["goldilocks32", "vial"],
         ["slump52", "vial"]
     ]
 }