chore: adds sample for base plausible install

modules/services/plausible.nix

@@ -0,0 +1,35 @@
+{
+  config,
+  ...
+}:
+let
+  domain = "statistics.liv.town";
+in
+{
+  services = {
+    nginx.virtualHosts.${domain} = {
+      forceSSL = true;
+      enableACME = true;
+      locations."/".proxyPass = "http://127.0.0.1:${toString config.services.plausible.server.port}";
+    };
+
+    plausible = {
+      enable = true;
+
+      adminUser = {
+        # activate is used to skip the email verification of the admin-user that's
+        # automatically created by plausible. This is only supported if
+        # postgresql is configured by the module. This is done by default, but
+        # can be turned off with services.plausible.database.postgres.setup.
+        activate = true;
+        email = "${config.liv.email}";
+        # passwordFile = config.age.secrets.plausibleAdminPassword.path;
+      };
+
+      server = {
+        baseUrl = "https://${domain}";
+        # secretKeybaseFile = config.age.secrets.plausibleSecretKeybase.path;
+      };
+    };
+  };
+}