diff --git a/flake.lock b/flake.lock
index 97688a5..ae0b14b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -32,6 +32,26 @@
         "type": "github"
       }
     },
+    "darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs-darwin"
+        ]
+      },
+      "locked": {
+        "lastModified": 1622060422,
+        "narHash": "sha256-hPVlvrAyf6zL7tTx0lpK+tMxEfZeMiIZ/A2xaJ41WOY=",
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "rev": "007d700e644ac588ad6668e6439950a5b6e2ff64",
+        "type": "github"
+      },
+      "original": {
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "locked": {
         "lastModified": 1629481132,
@@ -247,6 +267,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-darwin": {
+      "locked": {
+        "lastModified": 1630964657,
+        "narHash": "sha256-owGDhoOhY9AXsqkPvGJrprxfH3VEEiRmmzZiHy2bibM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e421291bdd94c79d6ae98f05ed8f09412d0b6ad7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-21.05-darwin",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-unstable": {
       "locked": {
         "lastModified": 1630140382,
@@ -267,6 +303,7 @@
       "inputs": {
         "active-window": "active-window",
         "comma": "comma",
+        "darwin": "darwin",
         "fzf-tab": "fzf-tab",
         "home-manager": "home-manager",
         "kak-lsp": "kak-lsp",
@@ -278,6 +315,7 @@
         "naersk": "naersk",
         "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-darwin": "nixpkgs-darwin",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "shellcheck-kak": "shellcheck-kak",
         "similar-sort": "similar-sort",
diff --git a/flake.nix b/flake.nix
index 5c67c51..e23f5a7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,9 +4,13 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/release-21.05";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    nixpkgs-darwin.url = "github:NixOS/nixpkgs/nixpkgs-21.05-darwin";
 
     nixos-hardware.url = "github:NixOS/nixos-hardware";
 
+    darwin.url = "github:LnL7/nix-darwin";
+    darwin.inputs.nixpkgs.follows = "nixpkgs-darwin";
+
     home-manager.url = "github:nix-community/home-manager/release-21.05";
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
 
@@ -197,5 +201,14 @@
           inputs.home-manager.nixosModules.home-manager
         ];
       };
+
+      darwinConfigurations.flame = inputs.darwin.lib.darwinSystem {
+        modules = [
+          ({ pkgs, ... }: {
+            nix.package = pkgs.nixUnstable;
+            nixpkgs.overlays = mkOverlays "x86_64-darwin";
+          })
+        ];
+      };
     };
 }
diff --git a/machines.sh b/machines.sh
index c86f143..3a0cefa 100755
--- a/machines.sh
+++ b/machines.sh
@@ -1,4 +1,20 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-nixos-rebuild --flake . "$@"
+case "$(uname -s)" in
+  Linux)
+    nixos-rebuild --flake . "$@"
+    ;;
+
+  Darwin)
+    nix-shell "-p" nixUnstable --run 'nix --experimental-features "nix-command flakes" build .#darwinConfigurations.flame.system'
+    if test "$@" != "build"; then
+      ./result/sw/bin/darwin-rebuild --flake . "$@"
+    fi
+    ;;
+
+  *)
+    echo "I don't know how to build on a $(uname -s) system."
+    exit 1
+    ;;
+esac