diff --git a/.gitignore b/.gitignore
index 89f9ac0..c98d0ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 out/
+result
diff --git a/flake.nix b/flake.nix
index fed8f20..858976d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,5 +14,18 @@
           janet
         ];
       };
+
+      packages.${system}.c = pkgs.stdenv.mkDerivation {
+        name = "mandelbrot-c";
+        src = ./src;
+        nativeBuildInputs = [ pkgs.clang ];
+        buildPhase = ''
+          cc mandelbrot.c -o mandelbrot-c -lm
+        '';
+        installPhase = ''
+          mkdir -p $out/bin/
+          cp mandelbrot-c $out/bin/
+        '';
+      };
     };
 }