Pros of Corne (crkbd)

• More compact design with 42 keys, ideal for minimalist setups
• Supports per-key RGB lighting for enhanced customization
• Offers a unique "chocolate bar" split layout for ergonomic typing

Cons of Corne (crkbd)

• Fewer keys may require more layers, increasing learning curve
• Lack of number row can be challenging for some users
• Smaller size might not be suitable for those with larger hands

Code Comparison

Corne (crkbd) firmware example:

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [0] = LAYOUT_split_3x6_3(
    KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                      KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
    KC_LCTL, 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_ESC,
                                        KC_LGUI, KC_LT,   KC_SPC,  KC_ENT,  KC_BSPC, KC_RALT
  )
};

Lily58 firmware example:

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
	[0] = LAYOUT(
		KC_ESC,   KC_1,   KC_2,    KC_3,    KC_4,    KC_5,                     KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC,
		KC_TAB,   KC_Q,   KC_W,    KC_E,    KC_R,    KC_T,                     KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_MINS,
		KC_LCTRL, 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_LBRC,  KC_RBRC, KC_N,   KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,
		                  KC_LALT, KC_LGUI, KC_LOWER,KC_SPC, KC_ENT,   KC_SPC,  KC_RAISE,KC_BSPC, KC_RGUI, KC_RALT
	)
};

Pros of qmk_firmware

• Supports a wide range of keyboard layouts and models
• Extensive documentation and community support
• Regular updates and active development

Cons of qmk_firmware

• Steeper learning curve for beginners
• Requires more setup and configuration

Code Comparison

Lily58:

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [0] = LAYOUT(
    KC_ESC,   KC_1,   KC_2,    KC_3,    KC_4,    KC_5,                     KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC,
    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_LCTL,  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_LBRC,  KC_RBRC,KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,
                               KC_LALT, KC_LGUI, KC_SPC, KC_ENT,   KC_SPC, KC_BSPC, KC_RGUI, KC_RALT
  )
};

qmk_firmware:

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    [0] = LAYOUT_planck_grid(
        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
        KC_ESC,  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_ENT,
        KC_LCTL, KC_LALT, KC_LGUI, KC_BSPC, KC_SPC,  KC_SPC,  KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_RGUI, KC_RALT
    )
};

Pros of Sofle Keyboard

• Features a more ergonomic design with a slight tenting angle
• Includes an OLED display for additional functionality
• Supports rotary encoders for enhanced input options

Cons of Sofle Keyboard

• Slightly more complex build process due to additional components
• May require more desk space due to its wider layout
• Potentially higher cost due to extra features

Code Comparison

Lily58 (config.h):

#define MASTER_LEFT
#define USE_SERIAL_PD2
#define TAPPING_FORCE_HOLD
#define TAPPING_TERM 100

Sofle Keyboard (config.h):

#define USE_SERIAL
#define MASTER_LEFT
#define SPLIT_USB_DETECT
#define TAPPING_TERM 200
#define ENCODER_RESOLUTION 4

Both keyboards use similar configuration options, but Sofle Keyboard includes additional settings for encoders and a longer tapping term. The Lily58 uses a specific serial pin (PD2), while Sofle Keyboard uses a more generic serial configuration.