diff --git a/content/index.md b/content/index.md
index 04e8d2b..896b1c6 100644
--- a/content/index.md
+++ b/content/index.md
@@ -1,7 +1,7 @@
 ---
 title: Statlib
 description: A Lean 4 library for foundational and modern theoretical statistics.
-script: homepage.js
+script: homepage.js?v=20261001-activity
 intro: false
 ---
 
@@ -11,6 +11,4 @@ intro: false
 
 ## Community activity {#activity .people}
 
-Activity is refreshed from GitHub on a schedule and served as a stable snapshot.
-
 [[community-activity]]
diff --git a/content/todos.md b/content/todos.md
index 2b0e376..eb98986 100644
--- a/content/todos.md
+++ b/content/todos.md
@@ -1,7 +1,7 @@
 ---
 title: Open formalization work — Statlib
 description: Lean theorem statements currently open for contribution in Statlib.
-script: homepage.js
+script: homepage.js?v=20261001-activity
 intro: true
 ---
 
diff --git a/contribute.html b/contribute.html
index 31cbc9f..676761d 100644
--- a/contribute.html
+++ b/contribute.html
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Contributing to Statlib</title>
-<link rel="stylesheet" href="site.css?v=20261001-homepage">
+<link rel="stylesheet" href="site.css?v=20261001-activity">
 </head>
 <body class="site-page">
 
diff --git a/governance.html b/governance.html
index cb43dd2..42de0e6 100644
--- a/governance.html
+++ b/governance.html
@@ -5,7 +5,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Governance — Statlib</title>
 <meta name="description" content="Statlib&#x27;s advisory board and maintainer team.">
-<link rel="stylesheet" href="site.css?v=20261001-homepage">
+<link rel="stylesheet" href="site.css?v=20261001-activity">
 </head>
 <body class="site-page">
 
diff --git a/homepage.js b/homepage.js
index db48fc4..1599ca2 100644
--- a/homepage.js
+++ b/homepage.js
@@ -166,7 +166,7 @@
     );
   }
 
-  function activityCard(person, rank, grandTotal, yMax) {
+  function activityCard(person, rank, grandTotal, yMax, startIndex) {
     const meta = KINDS.filter((kind) => person[kind.key] > 0).map((kind) =>
       count(person[kind.key], kind),
     );
@@ -205,7 +205,7 @@
         el("div", { class: "gh-meta", text: meta.join("  ·  ") }),
       ]),
       shareBar,
-      weeklyChart(person.weeks, yMax, {
+      weeklyChart(person.weeks.slice(startIndex), yMax, {
         height: 56,
         axis: false,
         label: `Weekly activity by ${person.name}`,
@@ -306,20 +306,25 @@
         0,
       ),
     }));
-    const combinedMax = Math.max(1, ...combined.map(weekTotal));
+    const firstActiveWeek = combined.findIndex((week) => weekTotal(week) > 0);
+    const startIndex = firstActiveWeek > 0 ? firstActiveWeek - 1 : 0;
+    const visibleCombined = combined.slice(startIndex);
+    const combinedMax = Math.max(1, ...visibleCombined.map(weekTotal));
     const personMax = Math.max(
       1,
-      ...rows.flatMap((person) => person.weeks.map(weekTotal)),
+      ...rows.flatMap((person) => person.weeks.slice(startIndex).map(weekTotal)),
     );
     const grandTotal = rows.reduce((sum, person) => sum + person.total, 0);
     const cards = el("ol", { class: "gh-cards" });
     rows.forEach((person, index) => {
-      cards.append(activityCard(person, index + 1, grandTotal, personMax));
+      cards.append(
+        activityCard(person, index + 1, grandTotal, personMax, startIndex),
+      );
     });
 
     board.append(
       el("div", { class: "data-summary" }, [
-        el("span", { text: `${activity.window} · ${rows.length} contributors` }),
+        el("span", { text: `${rows.length} contributors` }),
         el("span", { text: `Updated ${fmtUpdated(data.generated_at)}` }),
       ]),
       el("div", { class: "gh-view" }, [
@@ -328,7 +333,7 @@
             el("div", { class: "gh-overview-title", text: "Activity per week" }),
             legend(),
           ]),
-          weeklyChart(combined, combinedMax, {
+          weeklyChart(visibleCombined, combinedMax, {
             height: 120,
             axis: true,
             label: `Weekly activity in ${activity.repository}`,
diff --git a/index.html b/index.html
index 2a9c460..fce3ae6 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Statlib</title>
 <meta name="description" content="A Lean 4 library for foundational and modern theoretical statistics.">
-<link rel="stylesheet" href="site.css?v=20261001-homepage">
+<link rel="stylesheet" href="site.css?v=20261001-activity">
 </head>
 <body class="site-page">
 
@@ -28,7 +28,6 @@ <h1>Statlib</h1>
     <p><a href="https://github.com/stat-lib/statlib" target="_blank" rel="noopener">Statlib</a> is an open community that aims to support the verification of classical, contemporary, and emerging research in mathematical statistics; its vision and goals are shaped by the whole community. Please check out our contributors <a href="#activity">below</a>. Interested in joining us? Visit our <a href="https://leanprover.zulipchat.com/#narrow/channel/611809-Statlib" target="_blank" rel="noopener">Zulip channel</a>.</p>
     <section id="activity" class="people">
     <h2>Community activity</h2>
-    <p>Activity is refreshed from GitHub on a schedule and served as a stable snapshot.</p>
     <div id="activity-board" class="data-board" aria-live="polite" aria-busy="true">
     <p class="data-status">Loading community activity…</p>
     </div>
@@ -36,7 +35,7 @@ <h2>Community activity</h2>
   </div>
 </main>
 
-<script src="homepage.js" defer></script>
+<script src="homepage.js?v=20261001-activity" defer></script>
 
 </body>
 </html>
diff --git a/roadmap.html b/roadmap.html
index de2210c..4f1b962 100644
--- a/roadmap.html
+++ b/roadmap.html
@@ -5,7 +5,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Roadmap — Statlib</title>
 <meta name="description" content="Theorems and concepts queued for formalization, by topic.">
-<link rel="stylesheet" href="site.css?v=20261001-homepage">
+<link rel="stylesheet" href="site.css?v=20261001-activity">
 </head>
 <body class="site-page">
 
diff --git a/site.css b/site.css
index 1eabba9..9d0d0e2 100644
--- a/site.css
+++ b/site.css
@@ -406,6 +406,14 @@ body.site-page {
   border-bottom: 1px solid var(--line-soft);
 }
 
+.site-page #activity h2 {
+  margin-bottom: 12px;
+}
+
+.site-page #activity .data-summary {
+  margin-top: 0;
+}
+
 .site-page .people ul {
   list-style: none;
   margin: 0;
diff --git a/todos.html b/todos.html
index d1e3679..98352f0 100644
--- a/todos.html
+++ b/todos.html
@@ -5,7 +5,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Open formalization work — Statlib</title>
 <meta name="description" content="Lean theorem statements currently open for contribution in Statlib.">
-<link rel="stylesheet" href="site.css?v=20261001-homepage">
+<link rel="stylesheet" href="site.css?v=20261001-activity">
 </head>
 <body class="site-page">
 
@@ -32,7 +32,7 @@ <h1>Open formalization work</h1>
   </div>
 </main>
 
-<script src="homepage.js" defer></script>
+<script src="homepage.js?v=20261001-activity" defer></script>
 
 </body>
 </html>
diff --git a/tools/build_site.py b/tools/build_site.py
index c6eca98..31bd274 100755
--- a/tools/build_site.py
+++ b/tools/build_site.py
@@ -311,7 +311,7 @@ def render_page(page_key: str, meta: dict[str, str], body_html: str) -> str:
         head.append(f'<meta name="description" content="{html.escape(description)}">')
     head.extend(
         [
-            '<link rel="stylesheet" href="site.css?v=20261001-homepage">',
+            '<link rel="stylesheet" href="site.css?v=20261001-activity">',
             "</head>",
             '<body class="site-page">',
             "",