Add file systems

assets/page.erb

@@ -367,6 +367,12 @@
       margin: 1.5rem 0 0.5rem;
       grid-column: 1 / -1;
     }
+
+    .stack {
+      display: flex;
+      flex-direction: column;
+      gap: 1rem;
+    }
   </style>
 </head>
 <body>