Remove non-Keychron keyboards

11 files changed, 0 insertions, 776 deletions

diff --git a/keyboards/handwired/lagrange/config.h b/keyboards/handwired/lagrange/config.h
deleted file mode 100644
index 14a5767272..0000000000
--- a/keyboards/handwired/lagrange/config.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright 2020 Dimitris Papavasiliou <dpapavas@protonmail.ch>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include "config_common.h"
-
-#define EE_HANDS
-#define SPLIT_USB_DETECT
-
-/* key matrix size */
-#define MATRIX_ROWS 14
-#define MATRIX_COLS 6
-
-/* pin-out */
-#define MATRIX_ROW_PINS { E6, F1, F0, F4, F5, F6, F7 }
-#define MATRIX_COL_PINS { B4, B5, D7, B6, C6, D6 }
-#define MATRIX_ROW_PINS_RIGHT { B5, B4, D7, B6, C6, D6, D4 }
-#define MATRIX_COL_PINS_RIGHT { C7, F7, F6, F5, F4, F1 }
-
-/* COL2ROW or ROW2COL */
-#define DIODE_DIRECTION ROW2COL
-
-#define DEBOUNCE 5
-
-#define LED_CAPS_LOCK_PIN D1
-#define LED_SCROLL_LOCK_PIN D2
diff --git a/keyboards/handwired/lagrange/info.json b/keyboards/handwired/lagrange/info.json
deleted file mode 100644
index 9dd3891ebc..0000000000
--- a/keyboards/handwired/lagrange/info.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-    "keyboard_name": "Lagrange",
-    "manufacturer": "Dimitris Papavasiliou",
-    "url": "https://github.com/dpapavas/lagrange-keyboard",
-    "maintainer": "dpapavas",
-    "usb": {
-        "vid": "0xFEED",
-        "pid": "0x2718",
-        "device_version": "0.0.1"
-    },
-    "layouts": {
-        "LAYOUT": {
-            "layout": [
-                {"x":0, "y":0.75, "w":1.5},
-                {"x":1.5, "y":0.75},
-                {"x":2.5, "y":0.375},
-                {"x":3.5, "y":0},
-                {"x":4.5, "y":0.5},
-                {"x":5.5, "y":0.5},
-                {"x":12.5, "y":0.5},
-                {"x":13.5, "y":0.5},
-                {"x":14.5, "y":0},
-                {"x":15.5, "y":0.375},
-                {"x":16.5, "y":0.75},
-                {"x":17.5, "y":0.75, "w":1.5},
-
-                {"x":0, "y":1.75, "w":1.5},
-                {"x":1.5, "y":1.75},
-                {"x":2.5, "y":1.375},
-                {"x":3.5, "y":1},
-                {"x":4.5, "y":1.5},
-                {"x":5.5, "y":1.5},
-                {"x":12.5, "y":1.5},
-                {"x":13.5, "y":1.5},
-                {"x":14.5, "y":1},
-                {"x":15.5, "y":1.375},
-                {"x":16.5, "y":1.75},
-                {"x":17.5, "y":1.75, "w":1.5},
-
-                {"x":0, "y":2.75, "w":1.5},
-                {"x":1.5, "y":2.75},
-                {"x":2.5, "y":2.375},
-                {"x":3.5, "y":2},
-                {"x":4.5, "y":2.5},
-                {"x":5.5, "y":2.5},
-                {"x":12.5, "y":2.5},
-                {"x":13.5, "y":2.5},
-                {"x":14.5, "y":2},
-                {"x":15.5, "y":2.375},
-                {"x":16.5, "y":2.75},
-                {"x":17.5, "y":2.75, "w":1.5},
-
-                {"x":0, "y":3.75, "w":1.5},
-                {"x":1.5, "y":3.75},
-                {"x":2.5, "y":3.375},
-                {"x":3.5, "y":3},
-                {"x":4.5, "y":3.5},
-                {"x":5.5, "y":3.5},
-                {"x":12.5, "y":3.5},
-                {"x":13.5, "y":3.5},
-                {"x":14.5, "y":3},
-                {"x":15.5, "y":3.375},
-                {"x":16.5, "y":3.75},
-                {"x":17.5, "y":3.75, "w":1.5},
-
-                {"x":0, "y":4.75, "w":1.5},
-                {"x":2.5, "y":4.375},
-                {"x":3.5, "y":4},
-                {"x":5, "y":5, "h":1.25},
-                {"x":6, "y":5, "h":1.5},
-                {"x":7, "y":5, "h":1.5},
-                {"x":8, "y":5.5},
-                {"x":10, "y":5.5},
-                {"x":11, "y":5, "h":1.5},
-                {"x":12, "y":5, "h":1.5},
-                {"x":13, "y":5, "h":1.25},
-                {"x":14.5, "y":4},
-                {"x":15.5, "y":4.5},
-                {"x":17.5, "y":4.75, "w":1.5},
-
-                {"x":5, "y":7},
-                {"x":6, "y":6.5},
-                {"x":7, "y":7},
-                {"x":11, "y":7},
-                {"x":12, "y":6.5},
-                {"x":13, "y":7},
-
-                {"x":6, "y":7.5},
-                {"x":12, "y":7.5}
-            ]
-        }
-    }
-}
diff --git a/keyboards/handwired/lagrange/keymaps/default/keymap.c b/keyboards/handwired/lagrange/keymaps/default/keymap.c
deleted file mode 100644
index db624e9be0..0000000000
--- a/keyboards/handwired/lagrange/keymaps/default/keymap.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Copyright 2020 Dimitris Papavasiliou <dpapavas@protonmail.ch>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include QMK_KEYBOARD_H
-
-#define EQL_ALT MT(MOD_RALT, KC_EQL)
-#define MINS_ALT MT(MOD_LALT, KC_MINS)
-#define HOME_GUI MT(MOD_LGUI, KC_HOME)
-#define RGHT_GUI MT(MOD_RGUI, KC_RGHT)
-
-const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-    [0] = LAYOUT(
-                           /* Left hand */                                                                                     /* Right hand */
-
-        KC_GESC,  KC_1,    KC_2,    KC_3,     KC_4,     KC_5,                                                KC_6,    KC_7,    KC_8,     KC_9,     KC_0,    TT(1),
-        KC_TAB,   KC_Q,    KC_W,    KC_E,     KC_R,     KC_T,                                                KC_Y,    KC_U,    KC_I,     KC_O,     KC_P,    KC_BSLS,
-        KC_CAPS,  KC_A,    KC_S,    KC_D,     KC_F,     KC_G,                                                KC_H,    KC_J,    KC_K,     KC_L,     KC_SCLN, KC_QUOT,
-        KC_LSFT,  KC_Z,    KC_X,    KC_C,     KC_V,     KC_B,                                                KC_N,    KC_M,    KC_COMM,  KC_DOT,   KC_SLSH, KC_RSFT,
-
-        KC_LCPO,           KC_INS,  KC_LBRC, MINS_ALT, KC_BSPC,  KC_DEL,  KC_PSCR,   KC_PAUSE,   KC_ENT,   KC_SPC,   EQL_ALT, KC_RBRC, KC_DEL,          KC_RCPC,
-                                             HOME_GUI, KC_PGUP,  KC_END,                         KC_LEFT,  KC_UP,    RGHT_GUI,
-                                                       KC_PGDN,                                            KC_DOWN
-        ),
-
-  [1] = LAYOUT(
-                          /* Left hand */                                                                         /* Right hand */
-
-        KC_TRNS, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,                                     KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_TRNS,
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_F11,
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_F12,
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-
-        KC_TRNS,          KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, QK_BOOT,   QK_BOOT, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,          KC_TRNS,
-                                            KC_TRNS, KC_TRNS, KC_TRNS,                 KC_TRNS, KC_TRNS, KC_TRNS,
-                                                     KC_TRNS,                                   KC_TRNS
-      ),
-};
diff --git a/keyboards/handwired/lagrange/keymaps/dpapavas/config.h b/keyboards/handwired/lagrange/keymaps/dpapavas/config.h
deleted file mode 100644
index 049ba598a9..0000000000
--- a/keyboards/handwired/lagrange/keymaps/dpapavas/config.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Copyright 2020 Dimitris Papavasiliou <dpapavas@protonmail.ch>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#undef TAPPING_TERM
-#define TAPPING_TERM 175
-#define TAPPING_TERM_PER_KEY
-#define PERMISSIVE_HOLD_PER_KEY
-#define IGNORE_MOD_TAP_INTERRUPT
diff --git a/keyboards/handwired/lagrange/keymaps/dpapavas/keymap.c b/keyboards/handwired/lagrange/keymaps/dpapavas/keymap.c
deleted file mode 100644
index c2eb4406d1..0000000000
--- a/keyboards/handwired/lagrange/keymaps/dpapavas/keymap.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/* Copyright 2020 Dimitris Papavasiliou <dpapavas@protonmail.ch>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include QMK_KEYBOARD_H
-
-#define CAPS_SFT MT(MOD_LSFT, KC_CAPS)
-#define QUOT_SFT MT(MOD_RSFT, KC_QUOT)
-#define PSCR_SFT MT(MOD_LSFT, KC_PSCR)
-#define PAUSE_SFT MT(MOD_RSFT, KC_PAUSE)
-#define F_SFT MT(MOD_LSFT, KC_F)
-#define J_SFT MT(MOD_RSFT, KC_J)
-#define PGUP_GUI MT(MOD_LGUI, KC_PGUP)
-#define END_GUI MT(MOD_LGUI, KC_END)
-#define UP_GUI MT(MOD_RGUI, KC_UP)
-#define LEFT_GUI MT(MOD_RGUI, KC_LEFT)
-#define EQL_CTL MT(MOD_RCTL, KC_EQL)
-#define MINS_CTL MT(MOD_LCTL, KC_MINS)
-#define BSPC_ALT LALT_T(KC_BSPC)
-#define ENT_ALT LALT_T(KC_ENT)
-#define SPC_ALT RALT_T(KC_SPC)
-#define DEL_ALT RALT_T(KC_DEL)
-
-enum tapdance_keycodes {
-    TD_LEFT,
-    TD_RGHT,
-    TD_C_X
-};
-
-const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-  [0] = LAYOUT(
-                           /* Left hand */                                                                                       /* Right hand */
-
-        KC_GRV,   KC_1,    KC_2,    KC_3,     KC_4,     KC_5,                                                   KC_6,    KC_7,    KC_8,     KC_9,     KC_0,    KC_ESC,
-        KC_TAB,   KC_Q,    KC_W,    KC_E,     KC_R,     KC_T,                                                   KC_Y,    KC_U,    KC_I,     KC_O,     KC_P,    KC_BSLS,
-        CAPS_SFT, KC_A,    KC_S,    KC_D,     F_SFT,    KC_G,                                                   KC_H,    J_SFT,   KC_K,     KC_L,     KC_SCLN, QUOT_SFT,
-        PSCR_SFT, KC_Z,    KC_X,    KC_C,     KC_V,     KC_B,                                                   KC_N,    KC_M,    KC_COMM,  KC_DOT,   KC_SLSH, PAUSE_SFT,
-
-        TD(TD_LEFT),       KC_INS,  KC_LBRC, MINS_CTL, BSPC_ALT, DEL_ALT, TD(TD_C_X),   TD(TD_C_X), ENT_ALT,  SPC_ALT,  EQL_CTL, KC_RBRC, KC_DEL,          TD(TD_RGHT),
-                                             KC_HOME,  PGUP_GUI, END_GUI,                           LEFT_GUI, UP_GUI,   KC_RGHT,
-                                                       KC_PGDN,                                               KC_DOWN
-        ),
-
-  [1] = LAYOUT(
-                          /* Left hand */                                                                        /* Right hand */
-
-        KC_TRNS, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,                                     KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_TRNS,
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_F11,
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_F12,
-        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,                                   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-
-        KC_TRNS,          KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, QK_BOOT, QK_BOOT, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,          KC_TRNS,
-                                            KC_TRNS, KC_TRNS, KC_TRNS,                 KC_TRNS, KC_TRNS, KC_TRNS,
-                                                     KC_TRNS,                                   KC_TRNS
-        ),
-};
-
-/* The following helper macros define tap dances that support
- * separated press, release, tap and double-tap functions. */
-
-#define STEPS(DANCE) [DANCE] = ACTION_TAP_DANCE_FN_ADVANCED(            \
-        NULL,                                                           \
-        dance_ ## DANCE ## _finished,                                   \
-        dance_ ## DANCE ## _reset)
-
-#define CHOREOGRAPH(DANCE, PRESS, RELEASE, TAP, DOUBLETAP)              \
-    static bool dance_ ## DANCE ## _pressed;                            \
-                                                                        \
-    void dance_ ## DANCE ## _finished(qk_tap_dance_state_t *state, void *user_data) { \
-        if (state->count == 1) {                                        \
-            if (state->pressed) {                                       \
-                dance_ ## DANCE ## _pressed = true;                     \
-                PRESS;                                                  \
-            } else {                                                    \
-                TAP;                                                    \
-            }                                                           \
-        } else if (state->count == 2) {                                 \
-            if (!state->pressed) {                                      \
-                DOUBLETAP;                                              \
-            }                                                           \
-        }                                                               \
-    }                                                                   \
-                                                                        \
-    void dance_ ## DANCE ## _reset(qk_tap_dance_state_t *state, void *user_data) { \
-        if (state->count == 1) {                                        \
-            if (dance_ ## DANCE ## _pressed) {                          \
-                RELEASE;                                                \
-                dance_ ## DANCE ## _pressed = false;                    \
-            }                                                           \
-        }                                                               \
-    }
-
-/* Define dance for left palm key. */
-
-CHOREOGRAPH(TD_LEFT,
-            layer_invert(1),    /* Temporarily toggle layer when held. */
-            layer_invert(1),
-
-            /* Press and release both shifts on tap, to change
-             * keyboard layout (i.e. language). */
-
-            SEND_STRING(SS_DOWN(X_LSFT) SS_DOWN(X_RSFT)
-                        SS_UP(X_LSFT) SS_UP(X_RSFT)),
-
-            layer_invert(1));   /* Toggle layer (permanently) on
-                                 * double-tap. */
-
-/* Define dance for right palm key. */
-
-CHOREOGRAPH(TD_RGHT,
-            layer_invert(1),    /* Same as above */
-            layer_invert(1),
-            /* Send a complex macro: C-x C-s Mod-t up.  (Save in
-             * Emacs, switch to terminal and recall previous command,
-             * hopefully a compile command.) */
-            SEND_STRING(SS_DOWN(X_LCTRL) SS_TAP(X_X) SS_TAP(X_S) SS_UP(X_LCTRL)
-                        SS_DOWN(X_LGUI) SS_TAP(X_T) SS_UP(X_LGUI) SS_TAP(X_UP)),
-            layer_invert(1));
-
-/* This facilitates C-x chords in Emacs.  Used as a modifier along
- * with, say, the s-key, it saves, by sending C-x C-s.  When tapped it
- * just sends C-x. */
-
-CHOREOGRAPH(TD_C_X,
-            SEND_STRING(SS_DOWN(X_LCTRL) SS_TAP(X_X)),
-            SEND_STRING(SS_UP(X_LCTRL)),
-            SEND_STRING(SS_DOWN(X_LCTRL) SS_TAP(X_X) SS_UP(X_LCTRL)),);
-
-qk_tap_dance_action_t tap_dance_actions[] = {
-    STEPS(TD_LEFT), STEPS(TD_RGHT), STEPS(TD_C_X)
-};
-
-/* Set a longer tapping term for palm keys to allow comfortable
- * permanent layer toggle.  Also set an essentially infinite tapping
- * term for certain mod-tap keys one tends to keep pressed (such as
- * space, backspace, etc.).  This prevents sending the modifier
- * keycode by accident (allowing re-tap to get repeated key-press)
- * and, in combination with permissive hold, they can still be used
- * fine as modifiers. */
-
-uint16_t get_tapping_term(uint16_t keycode, keyrecord_t *record) {
-    switch (keycode) {
-        case TD(TD_LEFT):
-        case TD(TD_RGHT):
-             return 250;
-        case BSPC_ALT:
-        case UP_GUI:
-        case LEFT_GUI:
-            return 5000;
-        default:
-            return TAPPING_TERM;
-    }
-}
-
-bool get_permissive_hold(uint16_t keycode, keyrecord_t *record) {
-    switch (keycode) {
-        case TD(TD_LEFT):
-        case TD(TD_RGHT):
-        case BSPC_ALT:
-        case UP_GUI:
-        case LEFT_GUI:
-            return true;
-        default:
-            return false;
-    }
-}
-
-/* Use the first LED to indicate the active layer. */
-
-layer_state_t layer_state_set_user(layer_state_t state) {
-    writePin(D0, (get_highest_layer(state) > 0));
-
-    return state;
-}
-
-/* Cycle through the LEDs after initialization. */
-
-void keyboard_post_init_user(void) {
-    const pin_t pins[] = {D0, D1, D2};
-    uint8_t i, j;
-
-    for (i = 0 ; i < sizeof(pins) / sizeof(pins[0]) + 2 ; i += 1) {
-        for (j = 0 ; j < sizeof(pins) / sizeof(pins[0]) ; j += 1) {
-            setPinOutput(pins[j]);
-            writePin(pins[j], (j == i || j == i - 1));
-        }
-
-        wait_ms(100);
-    }
-}
diff --git a/keyboards/handwired/lagrange/keymaps/dpapavas/rules.mk b/keyboards/handwired/lagrange/keymaps/dpapavas/rules.mk
deleted file mode 100644
index 42f42f627a..0000000000
--- a/keyboards/handwired/lagrange/keymaps/dpapavas/rules.mk
+++ /dev/null
@@ -1,4 +0,0 @@
-# Enable additional features.
-
-DEBOUNCE_TYPE = sym_defer_pk
-TAP_DANCE_ENABLE = yes
diff --git a/keyboards/handwired/lagrange/lagrange.c b/keyboards/handwired/lagrange/lagrange.c
deleted file mode 100644
index 0c76512c57..0000000000
--- a/keyboards/handwired/lagrange/lagrange.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* Copyright 2020 Dimitris Papavasiliou <dpapavas@protonmail.ch>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <LUFA/Drivers/USB/USB.h>
-
-#include "lagrange.h"
-
-#ifndef SPLIT_USB_TIMEOUT_POLL
-#    define SPLIT_USB_TIMEOUT_POLL 10
-#endif
-
-/* Instead of timing out, the slave waits indefinitely for the other
- * side to signal that it has become master.  This avoids both sides
- * assuming the slave role when the USB port is powered but not
- * otherwise active (e.g. when the host is turned off, or suspended).
- * The SPI SS line is used for signaling.  On power-up it is
- * configured as input with pull-up enabled.  When one side assumes
- * the master role, it reconfigures the line for SPI, and pulls it low
- * to select the slave, which doubles as the signal. */
-
-bool is_keyboard_master(void) {
-    static int8_t is_master = -1;
-
-    if (is_master < 0) {
-        while (readPin(SPI_SS_PIN)) {
-            if (USB_Device_IsAddressSet()) {
-                is_master = 1;
-                return is_master;
-            }
-            wait_ms(SPLIT_USB_TIMEOUT_POLL);
-        }
-
-        is_master = 0;
-
-        USB_Disable();
-        USB_DeviceState = DEVICE_STATE_Unattached;
-    }
-
-    return is_master;
-}
-
-void keyboard_pre_init_kb(void) {
-    setPinInputHigh(SPI_SS_PIN);
-
-    keyboard_pre_init_user();
-}
diff --git a/keyboards/handwired/lagrange/lagrange.h b/keyboards/handwired/lagrange/lagrange.h
deleted file mode 100644
index 6f808ba8e4..0000000000
--- a/keyboards/handwired/lagrange/lagrange.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Copyright 2020 Dimitris Papavasiliou <dpapavas@protonmail.ch>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include "quantum.h"
-
-#if !defined(SPI_SS_PIN)
-#    define SPI_SS_PIN B0
-#endif
-
-#define SPI_SCK_PIN B1
-#define SPI_MOSI_PIN B2
-#define SPI_MISO_PIN B3
-
-#define LAYOUT(                                                                       \
-    l00, l01, l02, l03, l04, l05,                       r05, r04, r03, r02, r01, r00, \
-    l10, l11, l12, l13, l14, l15,                       r15, r14, r13, r12, r11, r10, \
-    l20, l21, l22, l23, l24, l25,                       r25, r24, r23, r22, r21, r20, \
-    l30, l31, l32, l33, l34, l35,                       r35, r34, r33, r32, r31, r30, \
-    l40,      l42, l43, l44, l45, l46, l47,   r47, r46, r45, r44, r43, r42,      r40, \
-                   l50, l51, l52,                       r52, r51, r50,                \
-                        l70,                                 r70)                     \
-    {                                                                                 \
-        {l00, l01, l02, l03, l04, l05},                                               \
-        {l10, l11, l12, l13, l14, l15},                                               \
-        {l20, l21, l22, l23, l24, l25},                                               \
-        {l30, l31, l32, l33, l34, l35},                                               \
-        {l40, KC_NO, l42, l43, l44, l45},                                             \
-        {KC_NO, KC_NO, KC_NO, l50, l51, l46},                                         \
-        {KC_NO, KC_NO, KC_NO, l70, l52, l47},                                         \
-                                                                                      \
-        {r00, r01, r02, r03, r04, r05},                                               \
-        {r10, r11, r12, r13, r14, r15},                                               \
-        {r20, r21, r22, r23, r24, r25},                                               \
-        {r30, r31, r32, r33, r34, r35},                                               \
-        {r40, KC_NO, r42, r43, r44, r45},                                             \
-        {KC_NO, KC_NO, KC_NO, r50, r51, r46},                                         \
-        {KC_NO, KC_NO, KC_NO, r70, r52, r47}                                          \
-    }
diff --git a/keyboards/handwired/lagrange/readme.md b/keyboards/handwired/lagrange/readme.md
deleted file mode 100644
index a4157771a4..0000000000
--- a/keyboards/handwired/lagrange/readme.md
+++ /dev/null
@@ -1,21 +0,0 @@
-# Lagrange
-
-An ergonomic, split, concave keyboard, with convex thumb pads.  See the [project page](https://github.com/dpapavas/lagrange-keyboard) for more info.
-
-![Lagrange](https://github.com/dpapavas/lagrange-keyboard/blob/master/doc/lagrange_keyboard.png?raw=true)
-
-* Keyboard Maintainer: [Dimitris Papavasiliou](https://github.com/dpapavas)
-* Hardware Supported: Lagrange PCB Rev A
-* Hardware Availability: See the build guide on the [project page](https://github.com/dpapavas/lagrange-keyboard).
-
-Make example for this keyboard (after setting up your build environment):
-
-    make handwired/lagrange:default
-
-Flashing example for this keyboard:
-
-    make handwired/lagrange:default:flash
-
-To program the keyboard you'll need to reset it.  This can be accomplished, either through the reset button, accessible via a hole in the bottom cover, or, if you've assigned the `QK_BOOT` keycode to a key, by pressing that key.
-
-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).
diff --git a/keyboards/handwired/lagrange/rules.mk b/keyboards/handwired/lagrange/rules.mk
deleted file mode 100644
index 574caf2395..0000000000
--- a/keyboards/handwired/lagrange/rules.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-# MCU name
-MCU = atmega32u4
-
-# Bootloader selection
-BOOTLOADER = atmel-dfu
-
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = no        # Mouse keys
-EXTRAKEY_ENABLE = yes       # Audio control and System control
-CONSOLE_ENABLE = yes        # Console for debug
-COMMAND_ENABLE = no         # Commands for debug and configuration
-NKRO_ENABLE = no            # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output
-UNICODE_ENABLE = yes
-SPLIT_KEYBOARD = yes
-SPLIT_TRANSPORT = custom
-
-SRC += transport.c spi_master.c
diff --git a/keyboards/handwired/lagrange/transport.c b/keyboards/handwired/lagrange/transport.c
deleted file mode 100644
index 8f6973925f..0000000000
--- a/keyboards/handwired/lagrange/transport.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/* Copyright 2020 Dimitris Papavasiliou <dpapavas@protonmail.ch>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <spi_master.h>
-
-#include "quantum.h"
-#include "split_util.h"
-#include "transport.h"
-#include "timer.h"
-
-#include "lagrange.h"
-
-struct led_context {
-    led_t led_state;
-    layer_state_t layer_state;
-};
-
-uint8_t transceive(uint8_t b) {
-    for (SPDR = b ; !(SPSR & _BV(SPIF)) ; );
-    return SPDR;
-}
-
-/* The SPI bus, doesn't have any form of protocol built in, so when
- * the other side isn't present, any old noise on the line will appear
- * as matrix data.  To avoid interpreting data as keystrokes, we do a
- * simple n-way (8-way here) handshake before each scan, where each
- * side sends a prearranged sequence of bytes. */
-
-bool shake_hands(bool master) {
-    const uint8_t m = master ? 0xf8 : 0;
-    const uint8_t a = 0xa8 ^ m, b = 0x50 ^ m;
-    bool synchronized = true;
-
-    uint8_t i;
-
-    i = SPSR;
-    i = SPDR;
-
-    do {
-        /* Cycling the SS pin on each attempt is necessary, as it
-         * resets the AVR's SPI core and guarantees proper
-         * alignment. */
-
-        if (master) {
-            writePinLow(SPI_SS_PIN);
-        }
-
-        for (i = 0 ; i < 8 ; i += 1) {
-            if (transceive(a + i) != b + i) {
-                synchronized = false;
-                break;
-            }
-        }
-
-        if (master) {
-            writePinHigh(SPI_SS_PIN);
-        }
-    } while (i < 8);
-
-    return synchronized;
-}
-
-bool transport_master(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
-    const struct led_context context = {
-        host_keyboard_led_state(),
-        layer_state
-    };
-
-    uint8_t i;
-
-    /* We shake hands both before and after transmitting the matrix.
-     * Doing it before transmitting is necessary to ensure
-     * synchronization: Due to the master-slave nature of the SPI bus,
-     * the master calls the shots.  If we just go ahead and start
-     * clocking bits, the slave side might be otherwise engaged at
-     * that moment, so we'll initially read zeros, or garbage.  Then
-     * when the slave gets around to transmitting its matrix, we'll
-     * misinterpret the keys it sends, leading to spurious
-     * keypresses. */
-
-    /* The handshake forces the master to wait for the slave to be
-     * ready to start transmitting. */
-
-    do {
-        shake_hands(true);
-
-        /* Receive the matrix from the other side, while transmitting
-         * LED and layer states. */
-
-        spi_start(SPI_SS_PIN, 0, 0, 4);
-
-        for (i = 0 ; i < sizeof(matrix_row_t[MATRIX_ROWS / 2]) ; i += 1) {
-            spi_status_t x;
-
-            x = spi_write(i < sizeof(struct led_context) ?
-                          ((uint8_t *)&context)[i] : 0);
-
-            if (x == SPI_STATUS_TIMEOUT) {
-                return false;
-            }
-
-            ((uint8_t *)slave_matrix)[i] = (uint8_t)x;
-        }
-
-        spi_stop();
-
-        /* In case of errors during the transmission, e.g. if the
-         * cable was disconnected and since there is no inherent
-         * error-checking protocol, we would simply interpret noise as
-         * data. */
-
-        /* To avoid this, both sides shake hands after transmitting.
-         * If synchronization was lost during transmission, the (first)
-         * handshake will fail.  In that case we go around and
-         * re-transmit. */
-
-    } while (!shake_hands(true));
-
-    return true;
-}
-
-void transport_slave(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
-    static struct led_context context;
-    struct led_context new_context;
-
-    uint8_t i;
-
-    /* Do the reverse of master above.  Note that timing is critical,
-     * so interrupts must be turned off. */
-
-    cli();
-    shake_hands(false);
-
-    do {
-        for (i = 0 ; i < sizeof(matrix_row_t[MATRIX_ROWS / 2]) ; i += 1) {
-            uint8_t b;
-
-            b = transceive(((uint8_t *)slave_matrix)[i]);
-
-            if (i < sizeof(struct led_context)) {
-                ((uint8_t *)&new_context)[i] = b;
-            }
-        }
-    } while (!shake_hands(false));
-
-    sei();
-
-    /* Update the layer and LED state if necessary. */
-
-    if (!isLeftHand) {
-        if (context.led_state.raw != new_context.led_state.raw) {
-            context.led_state.raw = new_context.led_state.raw;
-            led_update_kb(context.led_state);
-        }
-
-        if (context.layer_state != new_context.layer_state) {
-            context.layer_state = new_context.layer_state;
-            layer_state_set_kb(context.layer_state);
-        }
-    }
-}
-
-void transport_master_init(void) {
-    /* We need to set the SS pin as output as the handshake logic
-     * above depends on it and the SPI master driver won't do it
-     * before we call spi_start(). */
-
-    writePinHigh(SPI_SS_PIN);
-    setPinOutput(SPI_SS_PIN);
-
-    spi_init();
-
-    shake_hands(true);
-}
-
-void transport_slave_init(void) {
-    /* The datasheet isn't very clear on whether the internal pull-up
-     * is selectable when the SS pin is used by the SPI slave, but
-     * experimentations shows that it is, at least on the ATMega32u4.
-     * We enable the pull-up to guard against the case where both
-     * halves end up as slaves.  In that case the SS pin would
-     * otherwise be floating and free to fluctuate due to picked up
-     * noise, etc. When reading low it would make both halves think
-     * they're asserted making the MISO pin an output on both ends and
-     * leading to potential shorts. */
-
-    setPinInputHigh(SPI_SS_PIN);
-    setPinInput(SPI_SCK_PIN);
-    setPinInput(SPI_MOSI_PIN);
-    setPinOutput(SPI_MISO_PIN);
-
-    SPCR = _BV(SPE);
-
-    shake_hands(false);
-}