diff --git a/nixos-configuration/flake.lock b/nixos-configuration/flake.lock
new file mode 100644
index 0000000..97c934f
--- /dev/null
+++ b/nixos-configuration/flake.lock
@@ -0,0 +1,101 @@
+{
+  "nodes": {
+    "eleventy-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1750429373,
+        "narHash": "sha256-8ht2rUBMnHHxavXUiDXvOZ+kAtoA3rkrkaaFyC04bUI=",
+        "owner": "11ty",
+        "repo": "eleventy",
+        "rev": "afa9d9b8b5398da35aa3fc375c08889bf29a5182",
+        "type": "github"
+      },
+      "original": {
+        "owner": "11ty",
+        "repo": "eleventy",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1750215678,
+        "narHash": "sha256-Rc/ytpamXRf6z8UA2SGa4aaWxUXRbX2MAWIu2C8M+ok=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5395fb3ab3f97b9b7abca147249fa2e8ed27b192",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "our-site": {
+      "inputs": {
+        "eleventy-src": "eleventy-src",
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1750450809,
+        "narHash": "sha256-rGXq/J2nDfHqAIGCcfo7PkT1jWmJQ+oGjWiL5Z42Y4k=",
+        "ref": "main",
+        "rev": "ecb042ddbeb84b49910a324b671c924b47ec3509",
+        "shallow": true,
+        "type": "git",
+        "url": "ssh://gitea@gitea.kalu.blue/tech-blog/create-a-static-blog-with-nix.git"
+      },
+      "original": {
+        "ref": "main",
+        "shallow": true,
+        "type": "git",
+        "url": "ssh://gitea@gitea.kalu.blue/tech-blog/create-a-static-blog-with-nix.git"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "our-site": "our-site"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/nixos-configuration/flake.nix b/nixos-configuration/flake.nix
new file mode 100644
index 0000000..2b0e385
--- /dev/null
+++ b/nixos-configuration/flake.nix
@@ -0,0 +1,49 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    our-site = {
+      url = "git+ssh://gitea@gitea.kalu.blue/tech-blog/create-a-static-blog-with-nix.git?ref=main&shallow=1";
+      inputs.nixpkgs.follows = "nixpkgs"; # Will use the same Nixpkgs as the NixOS system
+    };
+  };
+
+  outputs =
+    { self, nixpkgs, ... }@inputs:
+    {
+      nixosConfigurations.my-server-name = nixpkgs.lib.nixosSystem {
+        specialArgs = {
+          # These will be passed as arguments to the modules
+          inherit inputs;
+        };
+
+        modules = [
+          # Essential for test VM
+          {
+            virtualisation.vmVariant = {
+              virtualisation = {
+                memorySize = 2048;
+                cores = 2;
+                # Disable graphics to avoid gtk error
+                graphics = false;
+              };
+            };
+
+            # Create a user, so we can login and test
+            users.users.test = {
+              isNormalUser = true;
+              # Never use this, use `hashedPassword` instead
+              initialPassword = nixpkgs.lib.mkForce "123123";
+              # So we can use `sudo` mainly for `sudo shutdown now` and to be able to debug `caddy`
+              group = "wheel";
+            };
+          }
+          # Some configuration
+          {
+            nixpkgs.hostPlatform = "x86_64-linux";
+            system.stateVersion = "25.11";
+          }
+          ./my-static-site.nix
+        ];
+      };
+    };
+}
diff --git a/nixos-configuration/justfile b/nixos-configuration/justfile
new file mode 100644
index 0000000..2671d79
--- /dev/null
+++ b/nixos-configuration/justfile
@@ -0,0 +1,3 @@
+# Run a the example config in a VM
+vm:
+  nix run ".#nixosConfigurations.my-server-name.config.system.build.vm"
diff --git a/nixos-configuration/my-static-site.nix b/nixos-configuration/my-static-site.nix
new file mode 100644
index 0000000..82737c4
--- /dev/null
+++ b/nixos-configuration/my-static-site.nix
@@ -0,0 +1,20 @@
+{ inputs, pkgs, ... }:
+let
+  site-url = "example.com";
+in
+{
+  services.caddy = {
+    enable = true;
+    # Needs `http://` prefix so that it does not try to request TLS certificates and redirect to 443
+    virtualHosts."http://${site-url}".extraConfig = ''
+      file_server
+      root * ${inputs.our-site.packages."${pkgs.system}".default}
+      encode gzip
+    '';
+  };
+
+  environment.shellAliases = {
+    # Test our site
+    curl-site = "curl -H \"Host: ${site-url}\" localhost";
+  };
+}