Add NixOS config example

1 files changed, 51 insertions, 0 deletions

diff --git a/examples/nixos/flake.nix b/examples/nixos/flake.nix
new file mode 100644
index 0000000..f97422c
--- /dev/null
+++ b/examples/nixos/flake.nix
@@ -0,0 +1,51 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+    temp-postgres = {
+      # Try adding "?ref=main&shallow=0" to the URL if you experience caching issues.
+      url = "git+https://git.skreutz.com/temp-postgres.git";
+      # Optionally use your global Nixpkgs input.
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      temp-postgres,
+    }@inputs:
+    {
+      nixosConfigurations.myhost =
+        let
+          system = "x86_64-linux";
+        in
+        nixpkgs.lib.nixosSystem {
+          inherit system;
+          specialArgs = {
+            inherit system inputs;
+          };
+          modules = [
+            # The following goes typically into ./configuration.nix
+            {
+              environment.systemPackages = [ inputs.temp-postgres.packages.${system}.default ];
+
+              users.users.stefan = {
+                isNormalUser = true;
+                extraGroups = [ "wheel" ];
+                initialPassword = "sesame";
+              };
+              system.stateVersion = "26.05";
+
+              # Dummy values to avoid failed assertions during `nix flake check`.
+              fileSystems."/" = {
+                device = "/dev/null";
+                fsType = "ext4";
+              };
+              boot.loader.grub.devices = [ "/dev/null" ];
+            }
+          ];
+        };
+    };
+}