diff --git a/flake.nix b/flake.nix
index 00d2520..d42c145 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,6 +11,8 @@
       url = "github:nix-community/disko";
       inputs.nixpkgs.follows = "nixpkgs-stable-nixos";
     };
+
+    nix-flatpak.url = "github:gmodena/nix-flatpak/?ref=latest";
   };
 
   outputs =
diff --git a/nodes/hosts/common/configuration.nix b/nodes/hosts/common/configuration.nix
index 4be269d..08c0a1d 100644
--- a/nodes/hosts/common/configuration.nix
+++ b/nodes/hosts/common/configuration.nix
@@ -1,14 +1,17 @@
-{ pkgs, ... }:
+{ pkgs, inputs, ... }:
 {
   imports = [
+    inputs.nix-flatpak.nixosModules.nix-flatpak
     ./programs/firefox.nix
     ./programs/general.nix
     ./programs/git.nix
     ./programs/kde.nix
     ./programs/steam.nix
     ./scripts/upgrade-diff.nix
+    ./services/cups.nix
     ./services/desktopmanager.nix
     ./services/displaymanager.nix
+    ./services/nix-flatpak.nix
     ./services/sound.nix
     ./system/bluetooth.nix
     ./system/locale.nix
diff --git a/nodes/hosts/common/services/cups.nix b/nodes/hosts/common/services/cups.nix
new file mode 100644
index 0000000..eec721a
--- /dev/null
+++ b/nodes/hosts/common/services/cups.nix
@@ -0,0 +1,14 @@
+{ pkgs, ...}: {
+  # Enable CUPS to print documents.
+  services.printing = {
+    enable = true;
+    drivers = [ pkgs.cnijfilter2 ];
+  };
+
+  # Automatic discovery of printers.
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+    openFirewall = true;
+  };
+}
diff --git a/nodes/hosts/common/services/nix-flatpak.nix b/nodes/hosts/common/services/nix-flatpak.nix
new file mode 100644
index 0000000..76d93e4
--- /dev/null
+++ b/nodes/hosts/common/services/nix-flatpak.nix
@@ -0,0 +1,6 @@
+{ pkgs, ...}: {
+  services.flatpak = {
+    enable = true;
+    update.onActivation = true;
+  };
+}