diff --git a/config/abyss.keymap b/config/abyss.keymap
index 996cf03..5815fe3 100644
--- a/config/abyss.keymap
+++ b/config/abyss.keymap
@@ -3,6 +3,43 @@
 #include <dt-bindings/zmk/bt.h>
 
 / {
+    behaviors {
+        hml: homerow_mods_left {
+            compatible = "zmk,behavior-hold-tap";
+            flavor = "balanced";
+            tapping-term-ms = <280>;
+            quick-tap-ms = <150>;
+            require-prior-idle-ms = <150>;
+            bindings = <&kp>, <&kp>;
+            #binding-cells = <2>;
+            // all keys on the right hands and thumbs
+            hold-trigger-key-positions = <
+                4 5 6 7
+                13 14 15 16 17
+                22 23 24 25
+                26 27 28 29 30 31
+            >;
+            hold-trgger-on-release;
+        };
+        hmr: homerow_mods_right {
+            compatible = "zmk,behavior-hold-tap";
+            flavor = "balanced";
+            tapping-term-ms = <280>;
+            quick-tap-ms = <150>;
+            require-prior-idle-ms = <150>;
+            bindings = <&kp>, <&kp>;
+            #binding-cells = <2>;
+            // all keys on the left hands and thumbs
+            hold-trigger-key-positions = <
+                0 1 2 3
+                8 9 10 11 12
+                18 19 20 21
+                26 27 28 29 30 31
+            >;
+            hold-trgger-on-release;
+        };
+    };
+
     keymap {
         compatible = "zmk,keymap";
 
@@ -11,9 +48,9 @@
 //              ╭─────────────┬─────────────┬─────────────┬─────────────╮  ╭─────────────┬─────────────┬─────────────┬─────────────╮
                   &kp COMMA     &kp DOT       &kp P         &kp Y            &kp F         &kp G         &kp C         &kp R
 //╭─────────────┼─────────────┼─────────────┼─────────────┼─────────────┤  ├─────────────┼─────────────┼─────────────┼─────────────┼─────────────╮
-    &kp A         &kp O         &kp E         &kp U         &kp I            &kp D         &kp H         &kp T         &kp N         &kp S
+    &hml LALT A   &hml LGUI O   &hml LSFT E   &hml LCTL U   &kp I            &kp D         &hmr LCTL H   &hmr LSFT T   &hmr LGUI N   &hmr LALT S
 //├─────────────┼─────────────┼─────────────┼─────────────┼─────────────╯  ╰─────────────┼─────────────┼─────────────┼─────────────┼─────────────┤
-    &kp SQT       w&kp Q        &kp J         &kp K                                        &kp M         &kp W         &kp V         &kp L
+    &kp SQT       &kp Q        &kp J         &kp K                                        &kp M         &kp W         &kp V         &kp L
 //╰───────────────────────────┼─────────────┼─────────────┼─────────────╮  ╭─────────────┼─────────────┼─────────────┼───────────────────────────╯
                                 &kp TAB       &kp SPACE     &kp ESC          &kp RET       &kp BSPC      &kp DEL
 //                            ╰─────────────┴─────────────┴─────────────╯  ╰─────────────┴─────────────┴─────────────╯