feat: add sym layer

see https://zmk.dev/blog/2025/12/09/zephyr-4-1

.gitea/workflows/build.yml

@@ -0,0 +1,5 @@
+on: [push, pull_request, workflow_dispatch]
+
+jobs:
+  build:
+    uses: https://github.com/zmkfirmware/zmk/.github/workflows/build-user-config.yml@main

build.yaml

@@ -13,7 +13,9 @@
 #
 ---
 include:
-  - board: nice_nano_v2
+  - board: nice_nano
-    shield: splitkb_aurora_corne_left nice_view_adapter nice_view
+    shield: corne_left nice_view
-  - board: nice_nano_v2
+  - board: nice_nano
-    shield: splitkb_aurora_corne_right nice_view_adapter nice_view
+    shield: corne_right nice_view
+  - board: nice_nano
+    shield: settings_reset

config/combos.dtsi

@@ -8,68 +8,86 @@
               ╰───────────╯ ╰───────────╯            */
 compatible = "zmk,combos";
 
+numG {
+    key-positions = <12 0>;
+    bindings = <&kp GRAVE>;
+    layers = <0>;
+};
+
 num1 {
     key-positions = <13 1>;
-    bindings = <&kt N1>;
+    bindings = <&kp N1>;
     layers = <0>;
 };
 
 num2 {
     key-positions = <14 2>;
-    bindings = <&kt N2>;
+    bindings = <&kp N2>;
     layers = <0>;
 };
 
 num3 {
     key-positions = <15 3>;
-    bindings = <&kt N3>;
+    bindings = <&kp N3>;
     layers = <0>;
 };
 
 num4 {
     key-positions = <16 4>;
-    bindings = <&kt N4>;
+    bindings = <&kp N4>;
     layers = <0>;
 };
 
 num5 {
     key-positions = <17 5>;
-    bindings = <&kt N5>;
+    bindings = <&kp N5>;
     layers = <0>;
 };
 
 num6 {
     key-positions = <18 6>;
-    bindings = <&kt N6>;
+    bindings = <&kp N6>;
     layers = <0>;
 };
 
 num7 {
     key-positions = <19 7>;
-    bindings = <&kt N7>;
+    bindings = <&kp N7>;
     layers = <0>;
 };
 
 num8 {
     key-positions = <20 8>;
-    bindings = <&kt N8>;
+    bindings = <&kp N8>;
     layers = <0>;
 };
 
 num9 {
     key-positions = <21 9>;
-    bindings = <&kt N9>;
+    bindings = <&kp N9>;
     layers = <0>;
 };
 
 num0 {
     key-positions = <22 10>;
-    bindings = <&kt N0>;
+    bindings = <&kp N0>;
+    layers = <0>;
+};
+
+numM {
+    key-positions = <23 11>;
+    bindings = <&kp MINUS>;
     layers = <0>;
 };
 
 c_esc {
     key-positions = <15 16>;
-    bindings = <&kt ESC>;
+    bindings = <&kp ESC>;
+    layers = <0>;
+};
+
+c_ret {
+    key-positions = <19 20>;
+    bindings = <&kp RET>;
     layers = <0>;
 };

config/corne.conf

@@ -6,6 +6,12 @@ CONFIG_ZMK_KEYBOARD_NAME="Spazz"
 # this is off for now because https://github.com/zmkfirmware/zmk/issues/65 is not done. i want lights on layer.
 # CONFIG_ZMK_RGB_UNDERGLOW=y
 
+# Enable eager debouncing
+CONFIG_ZMK_KSCAN_DEBOUNCE_PRESS_MS=1
+CONFIG_ZMK_KSCAN_DEBOUNCE_RELEASE_MS=7
+
 # this is so that the lag on the right side is minimized.
 # https://zmk.dev/docs/troubleshooting#connectivity-issues
 CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
+
+# CONFIG_ZMK_USB_LOGGING=y

config/corne.keymap

@@ -6,6 +6,7 @@
 #define RIGHT_   1
 #define LEFT_    2
 #define SHEET_   3
+#define SYM_    4
 
 / {
     behaviors {
@@ -18,6 +19,7 @@
             flavor = "balanced";
             bindings = <&kp>, <&kp>;
         };
+    };
 
     combos {
         #include "combos.dtsi"
@@ -37,7 +39,7 @@
 &kp LBKT  &kp Q       &kp W       &kp E           &kp R        &kp T      &kp Y     &kp U        &kp I          &kp O       &kp P          &kp RBKT
 &kp BSLH  &hm LGUI A  &hm RALT S  &hm LCTRL D     &hm LSHFT F  &kp G      &kp H     &hm RSHFT J  &hm RCTRL K    &hm RALT L  &hm RGUI SEMI  &kp SQT
 &kp NUBS   &kp Z       &kp X       &kp C           &kp V        &kp B      &kp N     &kp M        &kp COMMA      &kp DOT     &kp FSLH       &kp EQUAL
-                                  &lt RIGHT_ TAB  &kp RET      &kp ESC    &kp BSPC  &kp SPACE    &lt LEFT_ TAB
+                                  &lt RIGHT_ TAB  &lt SYM_ RET      &kp ESC    &kp BSPC  &lt SYM_ SPACE    &lt LEFT_ TAB
             >;
         };
 
@@ -49,7 +51,7 @@
             //                             |     |     |     |    | DEL | SPACE | tog SHEET_ |
 
             bindings = <
-&bt BT_CLR    &trans    &kp C_MUTE  &kp C_VOL_DN  &kp C_VOL_UP  &kp PSCRN    &kp N6    &kp N7     &kp N8       &kp N9     &kp N0   &kp BSPC
+&bt BT_CLR    &trans    &kp C_MUTE  &kp C_VOL_DN  &kp C_VOL_UP  &kp PSCRN    &kp N6    &kp N7     &kp N8       &kp N9     &kp N0   &kp MINUS
 &bt BT_SEL 1  &kp LGUI  &kp RALT    &kp LCTRL     &kp LSHFT     &none        &kp LEFT  &kp DOWN   &kp UP       &kp RIGHT  &none    &none
 &bt BT_SEL 2  &none     &none       &none         &none         &none        &kp F7    &kp F8     &kp F9       &kp F10    &kp F11  &kp F12
                                     &trans        &trans        &trans       &kp DEL   &kp SPACE  &tog SHEET_
@@ -59,12 +61,12 @@
         left_layer {
             // -----------------------------------------------------------------------------------------
             // |  GRAVE |  1  |  2  |  3  |  4  |  5  |     |    |         |         |        |        | BT3  |
-            // |        | \   | {   | [   | ]   | }   |     |    | RSHFT   |  RCTRL  | RALT   |  RGUI  | BT4  |
+            // |  \     | {   | [   | ]   | }   |     |    | RSHFT   |  RCTRL  | RALT   |  RGUI  | BT4  |
             // |  F1    |  F2 | F3  |  F4 | F5  | F6  |     |    |         |         |        |        | BT5  |
             //                      | tog SHEET_  |     |     |    |         |         |        |
 
             bindings = <
-&kp TAB     &kp N1      &kp N2      &kp N3      &kp N4         &kp N5           &none      &none      &none     &none     &none  &bt BT_SEL 3
+&kp GRAVE     &kp N1      &kp N2      &kp N3      &kp N4         &kp N5           &none      &none      &none     &none     &none  &bt BT_SEL 3
 &kp LA(N6)  &kp LA(N8)  &kp LA(N4)  &kp LA(N5)  &kp LA(MINUS)  &kp LA(EQUAL)    &kp RSHFT  &kp RCTRL  &kp RALT  &kp RGUI  &none  &bt BT_SEL 4
 &kp F1      &kp F2      &kp F3      &kp F4      &kp F5         &kp F6           &none      &none      &none     &none     &none  &bt BT_SEL 5
                                     &to SHEET_  &none          &none            &none      &none      &trans
@@ -85,5 +87,21 @@
                                     &kp KP_N0  &kp KP_DOT  &kp RET            &kp BSPC  &kp SPACE  &tog SHEET_
             >;
         };
+
+        sym_layer {
+            // -----------------------------------------------------------------------------------------
+            // | |  ^ |  <  |  >  |  $  |  %  |    |  @  |  &  |  *  |  '  |  `  |  |
+            // | |  { |  (  |  )  |  }  |  =  |    |  \  |  +  |  -  |  /  |  "  |  |
+            // | |  ~ |  [  |  ]  |  _  |  #  |    |  |  |  !  |  ;  |  :  |  ?  |  |
+            //              |     |     |     |    |     |     |     |
+
+            bindings = <
+&none &kp LS(N6) &kp NUBS &kp LS(NUBS) &kp RA(N4) &kp LS(N5) &kp RA(N0) &kp LS(N7) &kp LS(N8) &kp N4 &kp GRAVE &none
+&none &kp LS(LBKT) &kp LS(N5) &kp LS(N6) &kp LS(RBKT) &kp EQUAL &kp RA(N8) &kp LS(EQUAL) &kp MINUS &kp N8 &kp LS(N3) &none
+&none &kp RA(N2) &kp LBKT &kp RBKT &kp LS(MINUS) &kp LS(N3) &kp RA(N1) &kp LS(N1) &kp N5 &kp LS(N7) &kp LS(N0) &none
+&none &none &none &none &none &none
+            >;
+        };
+
     };
 };