diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..d1976e0
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,82 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1767767207,
+        "narHash": "sha256-Mj3d3PfwltLmukFal5i3fFt27L6NiKXdBezC1EBuZs4=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "5912c1772a44e31bf1c63c0390b90501e5026886",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1767926800,
+        "narHash": "sha256-x0n73J6ufD/EhDlVdcoAmF0OQHZ+b0a2cKDc8RZyt+o=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "499e9eed88ff9494b6604205b42847e847dfeb91",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..a6eb750
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,66 @@
+{
+  description = "Donut Browser Development Environment";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+
+        # Rust toolchain
+        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
+          extensions = [ "rust-src" "rust-analyzer" "clippy" "rustfmt" ];
+        };
+
+        # System dependencies for Tauri on Linux
+        libraries = with pkgs; [
+          webkitgtk_4_1
+          gtk3
+          cairo
+          gdk-pixbuf
+          glib
+          dbus
+          openssl_3
+          librsvg
+          libsoup_3
+        ];
+
+        packages = with pkgs; [
+          rustToolchain
+          nodejs_23
+          pnpm
+          pkg-config
+          cargo-tauri
+          # App specific tools
+          biome
+        ] ++ libraries;
+
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          buildInputs = packages;
+
+          shellHook = ''
+            export LD_LIBRARY_PATH=${pkgs.lib.makeLibraryPath libraries}:$LD_LIBRARY_PATH
+            export XDG_DATA_DIRS=${pkgs.gsettings-desktop-schemas}/share/gsettings-schemas/${pkgs.gsettings-desktop-schemas.name}:${pkgs.gtk3}/share/gsettings-schemas/${pkgs.gtk3.name}:$XDG_DATA_DIRS
+            
+            echo "🍩 Donut Browser Dev Environment Loaded!"
+            echo "Node: $(node --version)"
+            echo "Rust: $(rustc --version)"
+            echo "Tauri CLI: $(cargo-tauri --version)"
+          '';
+        };
+      }
+    );
+}