diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..051d09d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+eval "$(lorri direnv)"
diff --git a/45treus.yaml b/45treus.yaml
new file mode 100644
index 0000000..ff11f2e
--- /dev/null
+++ b/45treus.yaml
@@ -0,0 +1,91 @@
+points:
+  key:
+    footprints:
+      mx_hotswap:
+        type: mx
+        params:
+          hotswap: true
+          reverse: true
+          keycaps: true
+        nets:
+          # from: P1
+          # to: P2
+          from: =colrow
+          to: =column_net
+      diode:
+        type: diode
+        nets:
+          # from: P3
+          # to: P4
+          from: =colrow
+          to: =row_net
+        anchor:
+          shift: [0, -5]
+  zones:
+    matrix:
+      columns:
+        pinky:
+          key: { column_net: P20 }
+        ring:
+          stagger: 3
+          key: { column_net: P19 }
+        middle:
+          stagger: 5
+          key: { column_net: P18 }
+        index:
+          stagger: -5
+          key: { column_net: P17 }
+        inner:
+          stagger: -6
+          key: { column_net: P16 }
+        thumb:
+          stagger: 10
+          row_overrides:
+            bottom:
+          key: { column_net: P15 }
+      rows:
+        bottom:
+          row_net: P6
+        home:
+          row_net: P5
+        top:
+          row_net: P4
+        num:
+          row_net: P3
+
+  rotate: -23
+  mirror:
+    ref: matrix_thumb_bottom
+    distance: 42
+
+outlines:
+  exports:
+    plate:
+      - type: keys
+        side: both
+        size: 30
+        corner: 3
+      - type: polygon
+        points:
+          - ref: matrix_inner_num
+            shift: [0, 10]
+          - ref: matrix_inner_bottom
+            shift: [0, -10]
+          - ref: mirror_matrix_inner_bottom
+            shift: [0, -10]
+          - ref: mirror_matrix_inner_num
+            shift: [0, 10]
+
+cases:
+  case:
+    - type: outline
+      name: plate
+
+pcbs:
+  main:
+    outlines:
+      plate:
+        outline: plate
+    footprints:
+      mcu:
+        type: promicro
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..cdbce81
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,8 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+    bashInteractive
+    nodejs-16_x
+  ];
+}