The board, and what this game is going to be

Seventy-five provinces as two graphs, because an army and a fleet do not move
on the same one, and three provinces whose two coasts do not connect.

The topology is a fact about a published game and free to use; the artwork is
not, and there is none here -- the map will be generated from this data the
way the cave game's dodecahedron is. The name is a working one for the same
reason the starship game is not called what you expect.

The tests check the board against itself, and symmetry is the one that pays:
it found the Skagerrak wired to the Baltic, which would have opened a back
door into the Baltic and made Denmark worth nothing.

web/nginx.conf

@@ -0,0 +1,22 @@
+server {
+    listen 8080;
+    server_name _;
+    root /usr/share/nginx/html;
+
+    # Hashed filenames, so they can be cached hard.
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+        try_files $uri =404;
+    }
+
+    location / {
+        try_files $uri $uri/ /index.html;
+        add_header Cache-Control "no-cache";
+    }
+
+    location = /healthz {
+        access_log off;
+        return 200 "ok\n";
+    }
+}