Move Nix files back to the root of the project

hosts/nixedo/modules/acme.nix

@@ -0,0 +1,19 @@
+{ config, ... }:
+
+{
+  security.acme = {
+    acceptTerms = true;
+
+    certs = {
+      "oliverdavies.uk" = {
+        domain = "oliverdavies.uk";
+        dnsProvider = "cloudflare";
+        email = "oliver@oliverdavies.uk";
+        environmentFile = config.age.secrets.cloudflare.path;
+        webroot = null;
+
+        extraDomainNames = [ "*.oliverdavies.uk" ];
+      };
+    };
+  };
+}