diff --git a/flake.lock b/flake.lock
index 019392c80..05ead111b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -16,9 +16,26 @@
         "type": "github"
       }
     },
+    "opdavies-theme": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "path": "./themes/opdavies",
+        "type": "path"
+      },
+      "original": {
+        "path": "./themes/opdavies",
+        "type": "path"
+      },
+      "parent": []
+    },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "opdavies-theme": "opdavies-theme"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 9795525cc..4389de106 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,8 +1,15 @@
 {
-  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  inputs={
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+    opdavies-theme = {
+      inputs.nixpkgs.follows = "nixpkgs";
+      url = "path:./themes/opdavies";
+    };
+  };
 
   outputs =
-    { nixpkgs, ... }:
+    { nixpkgs, opdavies-theme, ... }:
     let
       system = "x86_64-linux";
       pkgs = import nixpkgs { inherit system; };
@@ -17,13 +24,22 @@
     in
     {
       devShells.${system}.default = pkgs.mkShell {
+        inputsFrom = [
+          opdavies-theme.devShells.${system}.default
+        ];
+
         packages = with pkgs; [
           just
+          lua-language-server
+          lua54Packages.luacheck
+          nixd
           php
           phpactor
           phpPackages.composer
           sqlite
         ];
       };
+
+      formatter.${system} = pkgs.nixfmt-rfc-style;
     };
 }
diff --git a/themes/opdavies/flake.nix b/themes/opdavies/flake.nix
new file mode 100644
index 000000000..ba2588772
--- /dev/null
+++ b/themes/opdavies/flake.nix
@@ -0,0 +1,15 @@
+{
+  outputs =
+    { nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs { inherit system; };
+    in
+    {
+      devShells.${system}.default = pkgs.mkShell {
+        buildInputs = with pkgs; [
+          tailwindcss
+        ];
+      };
+    };
+}