diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..7bd60b8
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,30 @@
+{
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-20.03";
+
+  outputs = { self, nixpkgs }: {
+
+    nixosConfigurations.container = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules =
+        [ ({ pkgs, ... }: {
+            boot.isContainer = true;
+
+            # Let 'nixos-version --json' know about the Git revision
+            # of this flake.
+            system.configurationRevision = nixpkgs.lib.mkIf (self ? rev) self.rev;
+
+            # Network configuration.
+            networking.useDHCP = false;
+            networking.firewall.allowedTCPPorts = [ 80 ];
+
+            # Enable a web server.
+            services.httpd = {
+              enable = true;
+              adminAddr = "morty@example.org";
+            };
+          })
+        ];
+    };
+
+  };
+}