Dominoes: All Fives, one against three, first to 250

Four at the table with a double-six set: five tiles each and a boneyard,
the first double a spinner that opens four ways, and every multiple of
five on the ends scored as it falls. Three computer players who count
what the table can see and never a hand, and talk the whole time.

Served at games.jcoffey.dev/dominoes/, built from this repository.

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";
+    }
+}