nginx/miom: init miom.space website

This adds an nginx configuration for https://miom.space/. MiOM is a
creative collective in Cologne that frequently hosts our hakken.irl
hackathons. They're already using our cloud to organize.

This service is a bit more specific than most pub.solar services and falls
into a similar category as the obs-portal.

On the old miom website all logging was turned off, we might want to do
the same thing in nginx here as well then.

hosts/nachtigall/apps/nginx-website-miom.nix

@@ -0,0 +1,33 @@
+{ ... }:
+
+{
+  systemd.tmpfiles.rules = [
+    "d '/srv/www/miom.space' 0750 hakkonaut hakkonaut - -"
+  ];
+
+  services.nginx.virtualHosts = {
+    "www.miom.space" = {
+      enableACME = true;
+      addSSL = true;
+      locations."/" = {
+        extraConfig = ''
+          return 301 https://miom.space$request_uri;
+        '';
+      };
+    };
+
+    "miom.space" = {
+      default = true;
+      enableACME = true;
+      forceSSL = true;
+
+      locations = {
+        "/" = {
+          root = "/srv/www/miom.space";
+          index = "index.html";
+          tryFiles = "$uri $uri/ =404";
+        };
+      };
+    };
+  };
+}

hosts/nachtigall/default.nix

@@ -23,6 +23,7 @@
       ./apps/nginx-mastodon-files.nix
       ./apps/nginx-prometheus-exporters.nix
       ./apps/nginx-website.nix
+      ./apps/nginx-website-miom.nix
       ./apps/opensearch.nix
       ./apps/owncast.nix
       ./apps/postgresql.nix