state packages come from github only

web/mirror-cache.html

@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Mirrors and cache — Keru OS</title>
-<meta name="description" content="How Keru and Kama download source: the project mirror, upstream fallback, and the download/source/stage cache layout.">
+<meta name="description" content="How Keru and Kama download source tarballs: an optional mirror you run, upstream as fallback, and the download/source/stage cache layout.">
 <link rel="stylesheet" href="assets/css/style.css">
 <link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>ける</text></svg>">
 </head>
@@ -21,7 +21,7 @@
 <section>
     <div class="wrap">
         <div class="prose">
-            <p>Every Keru build is a network operation. Two mechanisms keep that sane and reproducible: a mirror-first download policy, and a well-defined cache on disk.</p>
+            <p>Every Keru build is a network operation. Package recipes always come from the GitHub-hosted <a href="kama-repos.html">kama-packages</a> repo; this page is about the other half — the <em>source tarballs</em> each recipe downloads, and the cache they pass through.</p>
 
             <h3>Download order</h3>
             <ul class="features">