diff --git a/Toolchain/Nix/package.nix b/Toolchain/Nix/package.nix
new file mode 100644
index 00000000000..97928108afe
--- /dev/null
+++ b/Toolchain/Nix/package.nix
@@ -0,0 +1,26 @@
+# Override ladybird from nixpkgs with the source directory as the source
+# and latest revision (or "dirty") as the version. Unless new dependencies
+# are introduced, this should work just fine. If a new dependency is added
+# and builds are broken, simply adding the missing dependencies in buildInputs
+# inside of the attribute should do the trick.
+{
+  self,
+  lib,
+  ladybird,
+  ...
+}:
+ladybird.overrideAttrs {
+  # Reproducible source path
+  src = builtins.path {
+    path = ../../.;
+    name = "ladybird-source";
+    filter = lib.cleanSourceFilter;
+  };
+
+  # Short rev will be missing in "dirty" source trees. In which case we fall
+  # back to "dirty" as the version.
+  version = self.shortRev or "dirty";
+
+  # Let's not bother nixpkgs maintainers with issues in the source.
+  meta.maintainers = with lib.maintainers; [ NotAShelf ];
+}
diff --git a/Toolchain/Nix/shell.nix b/Toolchain/Nix/shell.nix
new file mode 100644
index 00000000000..ef3e560a70f
--- /dev/null
+++ b/Toolchain/Nix/shell.nix
@@ -0,0 +1,33 @@
+{
+  mkShell,
+  kdePackages,
+  ccache,
+  clang-tools,
+  pre-commit,
+  prettier,
+  ladybird,
+  ...
+}:
+mkShell {
+  inputsFrom = [
+    ladybird
+  ];
+
+  packages = [
+    ccache
+    clang-tools
+    pre-commit
+    prettier
+  ];
+
+  # Fix for: https://github.com/LadybirdBrowser/ladybird/issues/371#issuecomment-2616415434
+  # https://github.com/NixOS/nixpkgs/commit/049a854b4be087eaa3a09012b9c452fbc838dd41
+  NIX_LDFLAGS = "-lGL";
+
+  shellHook = ''
+    # NOTE: This is required to make it find the wayland platform plugin installed
+    #       above, but should probably be fixed upstream.
+    export QT_PLUGIN_PATH="$QT_PLUGIN_PATH:${kdePackages.qtwayland}/lib/qt-6/plugins"
+    export QT_QPA_PLATFORM="wayland;xcb"
+  '';
+}
diff --git a/flake.nix b/flake.nix
index 1853ccdb14d..742818d71aa 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,13 +17,32 @@
       eachSystem = nixpkgs.lib.genAttrs (import systems);
     in
     {
+      packages = eachSystem (
+        system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in
+        {
+          # Default ladybird package built from source using current directory
+          # as the source. This is not cached.
+          ladybird = pkgs.callPackage ./Toolchain/Nix/package.nix { inherit self; };
+
+          # Alias for `nix run .` or `nix run github:LadybirdBrowser/ladybird`
+          default = self.packages.${system}.ladybird;
+        }
+      );
+
       devShells = eachSystem (
         system:
         let
           pkgs = nixpkgs.legacyPackages.${system};
         in
         {
-          default = pkgs.callPackage ./Nix/shell.nix {
+          # Override nixpkgs ladybird with the one provided
+          # by this flake. This will allow inputsFrom to
+          # remain in-sync with the package provided by the
+          # flake.
+          default = pkgs.callPackage ./Toolchain/Nix/shell.nix {
             inherit (self.packages.${system}) ladybird;
           };
         }