diff --git a/keyboards/Kazhan_split/keyboard.ncl b/keyboards/Kazhan_split/keyboard.ncl
new file mode 100644
index 0000000..f7c4dc1
--- /dev/null
+++ b/keyboards/Kazhan_split/keyboard.ncl
@@ -0,0 +1,48 @@
+let { RowToColKey, ColToRowKey, PeripheralSideKey, .. } = import "fak/keyboard.ncl" in
+let { CH552T, .. } = import "fak/mcus.ncl" in
+
+let side_central = {
+    mcu = CH552T,
+    matrix = {
+        rows = [32, 15, 12, 13],
+        cols = [16, 17]
+    },
+    split.channel = CH552T.features.uart_30_31,
+} in
+
+let side_periph = {
+    mcu = CH552T,
+    matrix = {
+        rows = [32, 15, 12, 13],
+        cols = [16, 17]
+    },
+    split.channel = CH552T.features.uart_30_31,
+    keys = 
+        let C = ColToRowKey in
+        let R = RowToColKey in
+        [
+            C 0 0, R 0 0, C 1 0, R 1 0, R 1 3,
+            C 0 1, R 0 1, C 1 1, R 1 1, R 1 2,
+            C 0 2, R 0 2, C 1 2, C 1 3,
+            C 0 3, R 0 3,
+        ],
+} in
+
+side_central & {
+    usb_dev = {
+        vendor_id = 21681, #0x54B1
+        product_id = 2,
+        product_ver = 46193, #0xB471 kazhan means bat ^^
+    },
+    split.peripheral = side_periph,
+    keys = 
+        let C = ColToRowKey in
+        let R = RowToColKey in
+        let S = PeripheralSideKey in
+        [
+            C 0 3, C 0 0, R 0 0, C 1 0, R 1 0,      S 0,  S 1,  S 2,  S 3,  S 4,
+            C 0 2, C 0 1, R 0 1, C 1 1, R 1 1,      S 5,  S 6,  S 7,  S 8,  S 9,
+                   R 0 3, R 0 2, C 1 2, R 1 2,      S 10, S 11, S 12, S 13,
+                                 C 1 3, R 1 3,      S 14, S 15,
+        ],
+}
\ No newline at end of file
diff --git a/keyboards/Kazhan_split/keymaps/aptmak.ncl b/keyboards/Kazhan_split/keymaps/aptmak.ncl
new file mode 100644
index 0000000..1f5c5c9
--- /dev/null
+++ b/keyboards/Kazhan_split/keymaps/aptmak.ncl
@@ -0,0 +1 @@
+(import "shared/keymap.ncl") "aptmak"
\ No newline at end of file
diff --git a/keyboards/Kazhan_split/keymaps/colemak.ncl b/keyboards/Kazhan_split/keymaps/colemak.ncl
new file mode 100644
index 0000000..2161d3e
--- /dev/null
+++ b/keyboards/Kazhan_split/keymaps/colemak.ncl
@@ -0,0 +1 @@
+(import "shared/keymap.ncl") "colemak"
\ No newline at end of file
diff --git a/keyboards/Kazhan_split/keymaps/default.ncl b/keyboards/Kazhan_split/keymaps/default.ncl
new file mode 100644
index 0000000..0f5cafc
--- /dev/null
+++ b/keyboards/Kazhan_split/keymaps/default.ncl
@@ -0,0 +1 @@
+import "qwerty.ncl"
\ No newline at end of file
diff --git a/keyboards/Kazhan_split/keymaps/qwerty.ncl b/keyboards/Kazhan_split/keymaps/qwerty.ncl
new file mode 100644
index 0000000..13d2fbe
--- /dev/null
+++ b/keyboards/Kazhan_split/keymaps/qwerty.ncl
@@ -0,0 +1 @@
+(import "shared/keymap.ncl") "qwerty"
\ No newline at end of file
diff --git a/keyboards/Kazhan_split/keymaps/shared/config.ncl b/keyboards/Kazhan_split/keymaps/shared/config.ncl
new file mode 100644
index 0000000..9bc7373
--- /dev/null
+++ b/keyboards/Kazhan_split/keymaps/shared/config.ncl
@@ -0,0 +1,5 @@
+let { zilpzalp_combo_timeout_ms, .. } = import "lib/example.ncl" in
+
+{
+  combo_timeout_ms = zilpzalp_combo_timeout_ms,
+}
diff --git a/keyboards/Kazhan_split/keymaps/shared/keymap.ncl b/keyboards/Kazhan_split/keymaps/shared/keymap.ncl
new file mode 100644
index 0000000..671ad68
--- /dev/null
+++ b/keyboards/Kazhan_split/keymaps/shared/keymap.ncl
@@ -0,0 +1,134 @@
+fun layout_name =>
+
+let { tap, hold, td, combo, .. } = import "fak/keycode.ncl" in
+let util = import "fak/util_functions.ncl" in
+
+let config = import "config.ncl" in
+let layout = (import "layouts.ncl")."%{layout_name}" in
+let kustom_keys = layout.kustom_keys in
+
+let ki = {
+  hp = { decision = 'hold, trigger_on = 'press },
+  tp = { decision = 'tap, trigger_on = 'press },
+  hr = { decision = 'hold, trigger_on = 'release },
+  tr = { decision = 'tap, trigger_on = 'release },
+  xx = { decision = 'none },
+} in
+
+let combos = layout.combos in
+
+let virtual_keys' =
+  combos |> std.array.map (fun c =>
+    combo.make config.combo_timeout_ms (std.array.split_at 1 c).right)
+in
+
+let physical_key_count = 32 in
+let virtual_key_count = std.array.length virtual_keys' in
+let key_count = physical_key_count + virtual_key_count in
+
+let rec get_side_of_key_idx = fun key_idx =>
+  if key_idx < physical_key_count then
+    let right_indices = [4, 5, 6, 7, 12, 13, 14, 15, 20, 21, 22, 23, 28, 29, 30, 31] in
+    if std.array.elem key_idx right_indices then 'right else 'left
+  else
+    let c = std.array.at (key_idx - physical_key_count) combos in
+    let unique_sides = (std.array.split_at 1 c).right
+      |> std.array.map get_side_of_key_idx
+      |> util.array.unique in
+    if std.array.length unique_sides > 1 then
+      'both
+    else
+      std.array.first unique_sides
+in
+
+let make_hrm = fun key_idx =>
+  let hrm_mods =
+    let md = hold.reg.mod
+  in [
+    md.lctl, md.lalt, md.lgui, md.lsft, md.ralt,
+    md.ralt, md.rsft, md.rgui, md.lalt, md.rctl,
+  ] in
+
+  let hrm_key_indices = [
+    25, 8,  9,  10, 11,
+    30, 13, 14, 15, 12,
+  ] in
+
+  let htb_hrm_base = {
+    timeout_ms = 200,
+    quick_tap_ms = 150,
+    quick_tap_interrupt_ms = 500,
+    global_quick_tap_ms = 100,
+  } in
+
+  let htb_hrm = fun side => htb_hrm_base & {
+    key_interrupts =
+      let hrm_key_indices_on_side = hrm_key_indices |>
+        std.array.filter (fun i => get_side_of_key_idx i == side) in
+
+      std.array.generate (fun key_idx =>
+        let side_of_key_idx = get_side_of_key_idx key_idx in
+        if side_of_key_idx == 'both then
+          ki.xx
+        else if side_of_key_idx != side then
+          ki.hr
+        else if std.array.elem key_idx hrm_key_indices_on_side then
+          ki.tr
+        else
+          ki.tp
+      ) key_count
+  } in
+
+  if std.array.elem key_idx hrm_key_indices then
+    let mod_idx = util.array.index_of key_idx hrm_key_indices in
+    let mod = std.array.at mod_idx hrm_mods in
+    let side = get_side_of_key_idx key_idx in
+    mod & hold.reg.behavior (htb_hrm side)
+  else
+    {}
+in
+
+let XXXX = tap.none & hold.none in
+let virtual_base = combos |> std.array.map std.array.first in
+let virtual_filler = combos |> std.array.map (fun c => XXXX) in
+let excluded_indexes = [0, 9, 10, 19] in
+
+
+
+let layer_default =
+  let base_keycodes = layout.base_layout
+    |> std.string.characters
+    |> util.array.enumerate
+
+    |> std.array.map (fun { index, value } => tap.reg.kc."%{value}" & make_hrm index)
+  in
+
+
+    
+  let thumb_keycodes =
+    let htb_thumb = {
+      timeout_ms = 200,
+      quick_tap_ms = 150,
+      quick_tap_interrupt_ms = 500,
+      key_interrupts = std.array.replicate key_count ki.hr,
+    } in
+
+    layout.thumbs
+    |> util.array.enumerate
+    |> std.array.map (fun { index, value } =>
+        value 
+        & hold.reg.layer (index + 1)
+        & hold.reg.behavior htb_thumb)
+  in
+  
+  base_keycodes @ thumb_keycodes @ virtual_base 
+in
+
+{
+  virtual_keys = virtual_keys',
+  layers = [layer_default] @ (
+    ["NUM", "NAV", "SYM", "FUN"]
+    |> std.array.map (fun name => layout.layers."%{name}")
+    |> std.array.map (fun layer => layer @ virtual_filler)
+  )
+}
diff --git a/keyboards/Kazhan_split/keymaps/shared/layouts.ncl b/keyboards/Kazhan_split/keymaps/shared/layouts.ncl
new file mode 100644
index 0000000..0ca5685
--- /dev/null
+++ b/keyboards/Kazhan_split/keymaps/shared/layouts.ncl
@@ -0,0 +1,118 @@
+let { tap, hold, .. } = import "fak/keycode.ncl" in
+let util = import "fak/util_functions.ncl" in
+
+let kc = tap.reg.kc in
+let ks = tap.reg.ks in
+let md = hold.reg.mod in
+let tm = tap.reg.mod in
+let me = tap.custom.media in
+let mou = tap.custom.mouse in
+let XXXX = tap.none & hold.none in
+
+let shared_layers = {
+  NUM0 = [
+            XXXX, XXXX,    XXXX,    XXXX,    XXXX,         ks.PLUS, kc.N7,   kc.N8,   kc.N9,  XXXX,
+            XXXX, md.lalt, md.lgui, md.lsft, XXXX,         kc.MINS, kc.N4,   kc.N5,   kc.N6,  XXXX,
+                  md.lctl, XXXX,    XXXX,    XXXX,         kc.N1,   kc.N2,   kc.N3,   kc.SLSH,
+                                    XXXX,    XXXX,         kc.E,    kc.N0,
+  ],
+  NAV0 = [
+        mou.WH_U, XXXX,    XXXX,    XXXX,    me.MUTE,      XXXX,    kc.BSPC, kc.DEL,  kc.INS,  me.VOLU,
+        mou.WH_D, md.lalt, md.lgui, md.lsft, XXXX,         kc.LEFT, kc.DOWN, kc.UP,   kc.RGHT, me.VOLD,
+                  md.lctl, XXXX,    XXXX,    XXXX,         kc.HOME, XXXX,    kc.END,  kc.TAB,
+                                    XXXX,    XXXX,         XXXX,    XXXX,
+  ],
+  NUM1 = [
+            XXXX,  kc.N9,   kc.N8,   kc.N7,   ks.ASTR,     ks.PLUS, kc.N7,   kc.N8,   kc.N9,   XXXX,
+            XXXX,  kc.N6,   kc.N5,   kc.N4,   kc.SLSH,     kc.MINS, kc.N4,   kc.N5,   kc.N6,   XXXX,
+                   kc.N0,   kc.N3,   kc.N2,   kc.N1,       kc.N1,   kc.N2,   kc.N3,   kc.DOT,
+                                     XXXX,    XXXX,        kc.E,    kc.N0,
+  ],
+  NAV1 = [
+        mou.WH_U,  kc.INS,  kc.UP,   kc.BSPC, me.MUTE,     XXXX,    kc.BSPC, kc.DEL,  kc.INS,  me.VOLU,
+        mou.WH_D,  kc.LEFT, kc.DOWN, kc.RGHT, XXXX,        kc.LEFT, kc.DOWN, kc.UP,   kc.RGHT, me.VOLD,
+                   md.lctl, kc.HOME, kc.PGDN, kc.END,      kc.HOME, kc.PGUP, kc.END,  kc.TAB,
+                                     XXXX,    XXXX,        XXXX,    XXXX,
+  ],
+  SYM = [
+            XXXX,  kc.GRV,  ks.DQUO, kc.DOT,  kc.LBRC,     kc.RBRC, kc.BSLS, ks.PIPE, kc.SLSH, XXXX,
+            XXXX,  ks.AT,   ks.HASH, ks.DLR,  ks.LPRN,     ks.RPRN, ks.AMPR, ks.ASTR, ks.PERC, XXXX,
+                   ks.EXLM, ks.TILD, kc.QUOT, ks.UNDS,     kc.MINS, ks.PLUS, kc.EQL,  kc.TAB,
+                                     ks.LCBR, ks.RCBR,     XXXX,    XXXX,
+  ],
+  FUN = [
+            XXXX,  XXXX,    XXXX,    XXXX,    XXXX,        kc.F12,  kc.F7,   kc.F8,   kc.F9,   XXXX,
+            XXXX,  XXXX,    XXXX,    XXXX,    XXXX,        kc.F11,  kc.F4,   kc.F5,   kc.F6,   XXXX,
+                   XXXX,    XXXX,    XXXX,    XXXX,        kc.F1,   kc.F2,   kc.F3,   kc.F10,
+                                     XXXX,    XXXX,        XXXX,    XXXX,
+  ],
+} in
+
+let both_side_combos = [
+  [kc.CAPS, 1, 7],
+  # Caps word combo here once supported
+   #[CW, 10, 13],
+] in
+
+{
+  qwerty = {
+    base_layout = "QWERTYUIOQQSDFGHJKLAQXCVM,.P",
+    thumbs = [kc.ESC, kc.SPC, kc.N, kc.ENT],
+
+    combos = [
+      # Left
+      [kc.Q,    1,  2],
+      [kc.Z,    17, 18], [kc.B,    18, 19],
+      # Right
+                                            [kc.QUOT, 5, 6],   [kc.SCLN, 6,  7],
+                                            [kc.MINS, 20, 21], [kc.SLSH, 21, 22],
+    ] @ both_side_combos,
+    layers = {
+      NUM = shared_layers.NUM0,
+      NAV = shared_layers.NAV0,
+      SYM = shared_layers.SYM,
+      FUN = shared_layers.FUN,
+    }
+  },
+
+  colemak = {
+    base_layout = "WFPKJLUYRSTGMNEIAXCDH,.O",
+    thumbs = [kc.ESC, kc.SPC, kc.ENT, kc.BSPC],
+    combos = [
+      # Left
+      [kc.Q,    0,  1],  [kc.B,    1,  2],
+      [kc.Z,    17, 18], [kc.V,    18, 19],
+      # Right
+                                            [kc.QUOT, 5, 6],   [kc.SCLN, 6,  7],
+                                            [kc.MINS, 20, 21], [kc.SLSH, 21, 22],
+    ] @ both_side_combos,
+    layers = {
+      NUM = shared_layers.NUM0,
+      NAV = shared_layers.NAV0,
+      SYM = shared_layers.SYM,
+      FUN = shared_layers.FUN,
+    }
+  },
+
+  aptmak = {
+    base_layout = "WFPBJLUYSTHKXNAIRCGDM,.O",
+    thumbs = [kc.QUOT, kc.SPC, kc.E, kc.ENT],
+    combos = [
+      # Left
+      [kc.V,    0,  1],  [kc.Q,    1,  2],
+      [ks.LCBR, 0,  8],  [kc.LBRC, 1,  9],  [ks.LPRN, 2,  10], [ks.LABK, 3,  11],
+      [kc.Z,    17, 18], [kc.ESC,  18, 19],
+      # Right
+                                            [tm.lctl & kc.BSPC, 5, 7],
+                                            [kc.BSPC, 5, 6],   [kc.DEL,  6,  7],
+      [ks.RABK, 4,  12], [ks.RPRN, 5,  13], [kc.RBRC, 6,  14], [ks.RCBR, 7,  15],
+                                            [kc.MINS, 20, 21], [kc.SLSH, 21, 22],
+    ] @ both_side_combos,
+    layers = {
+      NUM = shared_layers.NUM1,
+      NAV = shared_layers.NAV1,
+      SYM = shared_layers.SYM,
+      FUN = shared_layers.FUN,
+    },
+  },
+}
diff --git a/keyboards/Kazhan_split_simple/keyboard.ncl b/keyboards/Kazhan_split_simple/keyboard.ncl
new file mode 100644
index 0000000..f7c4dc1
--- /dev/null
+++ b/keyboards/Kazhan_split_simple/keyboard.ncl
@@ -0,0 +1,48 @@
+let { RowToColKey, ColToRowKey, PeripheralSideKey, .. } = import "fak/keyboard.ncl" in
+let { CH552T, .. } = import "fak/mcus.ncl" in
+
+let side_central = {
+    mcu = CH552T,
+    matrix = {
+        rows = [32, 15, 12, 13],
+        cols = [16, 17]
+    },
+    split.channel = CH552T.features.uart_30_31,
+} in
+
+let side_periph = {
+    mcu = CH552T,
+    matrix = {
+        rows = [32, 15, 12, 13],
+        cols = [16, 17]
+    },
+    split.channel = CH552T.features.uart_30_31,
+    keys = 
+        let C = ColToRowKey in
+        let R = RowToColKey in
+        [
+            C 0 0, R 0 0, C 1 0, R 1 0, R 1 3,
+            C 0 1, R 0 1, C 1 1, R 1 1, R 1 2,
+            C 0 2, R 0 2, C 1 2, C 1 3,
+            C 0 3, R 0 3,
+        ],
+} in
+
+side_central & {
+    usb_dev = {
+        vendor_id = 21681, #0x54B1
+        product_id = 2,
+        product_ver = 46193, #0xB471 kazhan means bat ^^
+    },
+    split.peripheral = side_periph,
+    keys = 
+        let C = ColToRowKey in
+        let R = RowToColKey in
+        let S = PeripheralSideKey in
+        [
+            C 0 3, C 0 0, R 0 0, C 1 0, R 1 0,      S 0,  S 1,  S 2,  S 3,  S 4,
+            C 0 2, C 0 1, R 0 1, C 1 1, R 1 1,      S 5,  S 6,  S 7,  S 8,  S 9,
+                   R 0 3, R 0 2, C 1 2, R 1 2,      S 10, S 11, S 12, S 13,
+                                 C 1 3, R 1 3,      S 14, S 15,
+        ],
+}
\ No newline at end of file
diff --git a/keyboards/Kazhan_split_simple/keymaps/config.ncl b/keyboards/Kazhan_split_simple/keymaps/config.ncl
new file mode 100644
index 0000000..9bc7373
--- /dev/null
+++ b/keyboards/Kazhan_split_simple/keymaps/config.ncl
@@ -0,0 +1,5 @@
+let { zilpzalp_combo_timeout_ms, .. } = import "lib/example.ncl" in
+
+{
+  combo_timeout_ms = zilpzalp_combo_timeout_ms,
+}
diff --git a/keyboards/Kazhan_split_simple/keymaps/keymap.ncl b/keyboards/Kazhan_split_simple/keymaps/keymap.ncl
new file mode 100644
index 0000000..17cab08
--- /dev/null
+++ b/keyboards/Kazhan_split_simple/keymaps/keymap.ncl
@@ -0,0 +1,140 @@
+fun layout_name =>
+
+let { tap, hold, td, combo, .. } = import "fak/keycode.ncl" in
+let util = import "fak/util_functions.ncl" in
+
+let config = import "config.ncl" in
+let layout = (import "layouts.ncl")."%{layout_name}" in
+let kustom_keys = layout.kustom_keys in
+
+let ki = {
+  hp = { decision = 'hold, trigger_on = 'press },
+  tp = { decision = 'tap, trigger_on = 'press },
+  hr = { decision = 'hold, trigger_on = 'release },
+  tr = { decision = 'tap, trigger_on = 'release },
+  xx = { decision = 'none },
+} in
+
+let combos = layout.combos in
+
+let virtual_keys' =
+  combos |> std.array.map (fun c =>
+    combo.make config.combo_timeout_ms (std.array.split_at 1 c).right)
+in
+
+let physical_key_count = 32 in
+let virtual_key_count = std.array.length virtual_keys' in
+let key_count = physical_key_count + virtual_key_count in
+
+let rec get_side_of_key_idx = fun key_idx =>
+  if key_idx < physical_key_count then
+    let right_indices = [4, 5, 6, 7, 12, 13, 14, 15, 20, 21, 22, 23, 28, 29, 30, 31] in
+    if std.array.elem key_idx right_indices then 'right else 'left
+  else
+    let c = std.array.at (key_idx - physical_key_count) combos in
+    let unique_sides = (std.array.split_at 1 c).right
+      |> std.array.map get_side_of_key_idx
+      |> util.array.unique in
+    if std.array.length unique_sides > 1 then
+      'both
+    else
+      std.array.first unique_sides
+in
+
+let make_hrm = fun key_idx =>
+  let hrm_mods =
+    let md = hold.reg.mod
+  in [
+    md.lctl, md.lalt, md.lgui, md.lsft, md.ralt,
+    md.ralt, md.rsft, md.rgui, md.lalt, md.rctl,
+  ] in
+
+  let hrm_key_indices = [
+    25, 8,  9,  10, 11,
+    30, 13, 14, 15, 12,
+  ] in
+
+  let htb_hrm_base = {
+    timeout_ms = 200,
+    quick_tap_ms = 150,
+    quick_tap_interrupt_ms = 500,
+    global_quick_tap_ms = 100,
+  } in
+
+  let htb_hrm = fun side => htb_hrm_base & {
+    key_interrupts =
+      let hrm_key_indices_on_side = hrm_key_indices |>
+        std.array.filter (fun i => get_side_of_key_idx i == side) in
+
+      std.array.generate (fun key_idx =>
+        let side_of_key_idx = get_side_of_key_idx key_idx in
+        if side_of_key_idx == 'both then
+          ki.xx
+        else if side_of_key_idx != side then
+          ki.hr
+        else if std.array.elem key_idx hrm_key_indices_on_side then
+          ki.tr
+        else
+          ki.tp
+      ) key_count
+  } in
+
+  if std.array.elem key_idx hrm_key_indices then
+    let mod_idx = util.array.index_of key_idx hrm_key_indices in
+    let mod = std.array.at mod_idx hrm_mods in
+    let side = get_side_of_key_idx key_idx in
+    mod & hold.reg.behavior (htb_hrm side)
+  else
+    {}
+in
+
+let XXXX = tap.none & hold.none in
+let virtual_base = combos |> std.array.map std.array.first in
+let virtual_filler = combos |> std.array.map (fun c => XXXX) in
+let excluded_indexes = [0, 9, 10, 19] in
+
+
+
+let layer_default =
+  let base_keycodes = layout.base_layout
+    |> std.string.characters
+    |> util.array.enumerate
+    |> std.array.filter (fun x =>
+        let index = x.index in
+        !(std.array.elem index excluded_indexes)
+    )
+    |> std.array.map (fun { index, value } => tap.reg.kc."%{value}" & make_hrm index)
+  in
+
+
+  let my_special_keycodes = kustom_keys
+    |> std.array.map (fun { index, binding } => binding & make_hrm index)
+  in
+    
+  let thumb_keycodes =
+    let htb_thumb = {
+      timeout_ms = 200,
+      quick_tap_ms = 150,
+      quick_tap_interrupt_ms = 500,
+      key_interrupts = std.array.replicate key_count ki.hr,
+    } in
+
+    layout.thumbs
+    |> util.array.enumerate
+    |> std.array.map (fun { index, value } =>
+        value 
+        & hold.reg.layer (index + 1)
+        & hold.reg.behavior htb_thumb)
+  in
+  
+  base_keycodes @ thumb_keycodes @ virtual_base @ my_special_keycodes
+in
+
+{
+  virtual_keys = virtual_keys',
+  layers = [layer_default] @ (
+    ["NUM", "NAV", "SYM", "FUN"]
+    |> std.array.map (fun name => layout.layers."%{name}")
+    |> std.array.map (fun layer => layer @ virtual_filler)
+  )
+}
diff --git a/keyboards/Kazhan_split_simple/keymaps/layouts.ncl b/keyboards/Kazhan_split_simple/keymaps/layouts.ncl
new file mode 100644
index 0000000..fcafcb3
--- /dev/null
+++ b/keyboards/Kazhan_split_simple/keymaps/layouts.ncl
@@ -0,0 +1,125 @@
+let { tap, hold, .. } = import "fak/keycode.ncl" in
+let util = import "fak/util_functions.ncl" in
+
+let kc = tap.reg.kc in
+let ks = tap.reg.ks in
+let md = hold.reg.mod in
+let tm = tap.reg.mod in
+let me = tap.custom.media in
+let mou = tap.custom.mouse in
+let XXXX = tap.none & hold.none in
+
+let shared_layers = {
+  NUM0 = [
+            XXXX, XXXX,    XXXX,    XXXX,    XXXX,         ks.PLUS, kc.N7,   kc.N8,   kc.N9,  XXXX,
+            XXXX, md.lalt, md.lgui, md.lsft, XXXX,         kc.MINS, kc.N4,   kc.N5,   kc.N6,  XXXX,
+                  md.lctl, XXXX,    XXXX,    XXXX,         kc.N1,   kc.N2,   kc.N3,   kc.SLSH,
+                                    XXXX,    XXXX,         kc.E,    kc.N0,
+  ],
+  NAV0 = [
+        mou.WH_U, XXXX,    XXXX,    XXXX,    me.MUTE,      XXXX,    kc.BSPC, kc.DEL,  kc.INS,  me.VOLU,
+        mou.WH_D, md.lalt, md.lgui, md.lsft, XXXX,         kc.LEFT, kc.DOWN, kc.UP,   kc.RGHT, me.VOLD,
+                  md.lctl, XXXX,    XXXX,    XXXX,         kc.HOME, XXXX,    kc.END,  kc.TAB,
+                                    XXXX,    XXXX,         XXXX,    XXXX,
+  ],
+  NUM1 = [
+            XXXX,  kc.N9,   kc.N8,   kc.N7,   ks.ASTR,     ks.PLUS, kc.N7,   kc.N8,   kc.N9,   XXXX,
+            XXXX,  kc.N6,   kc.N5,   kc.N4,   kc.SLSH,     kc.MINS, kc.N4,   kc.N5,   kc.N6,   XXXX,
+                   kc.N0,   kc.N3,   kc.N2,   kc.N1,       kc.N1,   kc.N2,   kc.N3,   kc.DOT,
+                                     XXXX,    XXXX,        kc.E,    kc.N0,
+  ],
+  NAV1 = [
+        mou.WH_U,  kc.INS,  kc.UP,   kc.BSPC, me.MUTE,     XXXX,    kc.BSPC, kc.DEL,  kc.INS,  me.VOLU,
+        mou.WH_D,  kc.LEFT, kc.DOWN, kc.RGHT, XXXX,        kc.LEFT, kc.DOWN, kc.UP,   kc.RGHT, me.VOLD,
+                   md.lctl, kc.HOME, kc.PGDN, kc.END,      kc.HOME, kc.PGUP, kc.END,  kc.TAB,
+                                     XXXX,    XXXX,        XXXX,    XXXX,
+  ],
+  SYM = [
+            XXXX,  kc.GRV,  ks.DQUO, kc.DOT,  kc.LBRC,     kc.RBRC, kc.BSLS, ks.PIPE, kc.SLSH, XXXX,
+            XXXX,  ks.AT,   ks.HASH, ks.DLR,  ks.LPRN,     ks.RPRN, ks.AMPR, ks.ASTR, ks.PERC, XXXX,
+                   ks.EXLM, ks.TILD, kc.QUOT, ks.UNDS,     kc.MINS, ks.PLUS, kc.EQL,  kc.TAB,
+                                     ks.LCBR, ks.RCBR,     XXXX,    XXXX,
+  ],
+  FUN = [
+            XXXX,  XXXX,    XXXX,    XXXX,    XXXX,        kc.F12,  kc.F7,   kc.F8,   kc.F9,   XXXX,
+            XXXX,  XXXX,    XXXX,    XXXX,    XXXX,        kc.F11,  kc.F4,   kc.F5,   kc.F6,   XXXX,
+                   XXXX,    XXXX,    XXXX,    XXXX,        kc.F1,   kc.F2,   kc.F3,   kc.F10,
+                                     XXXX,    XXXX,        XXXX,    XXXX,
+  ],
+} in
+
+let both_side_combos = [
+  [kc.CAPS, 1, 7],
+  # Caps word combo here once supported
+   #[CW, 10, 13],
+] in
+
+{
+  qwerty = {
+    base_layout = "WERTYUIOSDFGHJKLAXCVM,.P",
+    thumbs = [kc.ESC, kc.SPC, kc.N, kc.ENT],
+    #kustom_keys = [kc.ESC, kc.SPC, kc.N, kc.ENT],
+    
+    kustom_keys = [
+        { index = 0, binding = tap.reg.kc.ESC },  # W -> ESC
+        { index = 9, binding = tap.reg.kc.TAB },  # O -> TAB
+        { index = 10, binding = tap.reg.kc.BACKSPACE },  # S -> BACKSPACE
+        { index = 19, binding = tap.reg.kc.ENTER }  # L -> ENTER
+    ],
+    combos = [
+      # Left
+      [kc.Q,    1,  2],
+      [kc.Z,    17, 18], [kc.B,    18, 19],
+      # Right
+                                            [kc.QUOT, 5, 6],   [kc.SCLN, 6,  7],
+                                            [kc.MINS, 20, 21], [kc.SLSH, 21, 22],
+    ] @ both_side_combos,
+    layers = {
+      NUM = shared_layers.NUM0,
+      NAV = shared_layers.NAV0,
+      SYM = shared_layers.SYM,
+      FUN = shared_layers.FUN,
+    }
+  },
+
+  colemak = {
+    base_layout = "WFPKJLUYRSTGMNEIAXCDH,.O",
+    thumbs = [kc.ESC, kc.SPC, kc.ENT, kc.BSPC],
+    combos = [
+      # Left
+      [kc.Q,    0,  1],  [kc.B,    1,  2],
+      [kc.Z,    17, 18], [kc.V,    18, 19],
+      # Right
+                                            [kc.QUOT, 5, 6],   [kc.SCLN, 6,  7],
+                                            [kc.MINS, 20, 21], [kc.SLSH, 21, 22],
+    ] @ both_side_combos,
+    layers = {
+      NUM = shared_layers.NUM0,
+      NAV = shared_layers.NAV0,
+      SYM = shared_layers.SYM,
+      FUN = shared_layers.FUN,
+    }
+  },
+
+  aptmak = {
+    base_layout = "WFPBJLUYSTHKXNAIRCGDM,.O",
+    thumbs = [kc.QUOT, kc.SPC, kc.E, kc.ENT],
+    combos = [
+      # Left
+      [kc.V,    0,  1],  [kc.Q,    1,  2],
+      [ks.LCBR, 0,  8],  [kc.LBRC, 1,  9],  [ks.LPRN, 2,  10], [ks.LABK, 3,  11],
+      [kc.Z,    17, 18], [kc.ESC,  18, 19],
+      # Right
+                                            [tm.lctl & kc.BSPC, 5, 7],
+                                            [kc.BSPC, 5, 6],   [kc.DEL,  6,  7],
+      [ks.RABK, 4,  12], [ks.RPRN, 5,  13], [kc.RBRC, 6,  14], [ks.RCBR, 7,  15],
+                                            [kc.MINS, 20, 21], [kc.SLSH, 21, 22],
+    ] @ both_side_combos,
+    layers = {
+      NUM = shared_layers.NUM1,
+      NAV = shared_layers.NAV1,
+      SYM = shared_layers.SYM,
+      FUN = shared_layers.FUN,
+    },
+  },
+}