diff --git a/docs/.vitepress/theme/CustomLayout.vue b/docs/.vitepress/theme/CustomLayout.vue
new file mode 100644
index 0000000000..30c1a7ec13
--- /dev/null
+++ b/docs/.vitepress/theme/CustomLayout.vue
@@ -0,0 +1,16 @@
+<script setup>
+
+import DefaultTheme from "vitepress/theme-without-fonts";
+import ObservablePromo from "./ObservablePromo.vue";
+
+const {Layout} = DefaultTheme;
+
+</script>
+
+<template>
+  <Layout>
+    <template #home-features-after>
+      <ObservablePromo />
+    </template>
+  </Layout>
+</template>
diff --git a/docs/.vitepress/theme/ObservablePromo.vue b/docs/.vitepress/theme/ObservablePromo.vue
new file mode 100644
index 0000000000..0e199464e3
--- /dev/null
+++ b/docs/.vitepress/theme/ObservablePromo.vue
@@ -0,0 +1,131 @@
+<template>
+  <div :class="`vp-doc ${$style.promo}`">
+    <h1 :class="$style.hed">Build your best work with Plot on Observable</h1>
+    <div :class="$style.subhed">The only data workflow platform capable of supporting the full power of Plot</div>
+    <div :class="$style.columns">
+      <div :class="$style.column">
+        <span :class="$style['column-header']">Connect to your data instantly</span>
+        <span :class="$style['column-body']">Pull live data from the cloud, files, and databases into one secure place — without installing anything, ever.</span>
+      </div>
+      <div :class="$style.column">
+        <span :class="$style['column-header']">Code faster than you thought possible</span>
+        <span :class="$style['column-body']">Get everything you need and none of what you don’t with lightweight automatic versioning, instant sharing, and real-time multiplayer editing.</span>
+      </div>
+      <div :class="$style.column">
+        <span :class="$style['column-header']">Accelerate your team’s analysis</span>
+        <span :class="$style['column-body']">Create a home for your team’s data analysis where you can spin up charts, maps, and data apps to explore, analyze, and iterate on together.</span>
+      </div>
+    </div>
+    <a :class="$style.button" href="https://observablehq.com" target="_blank">Build with Plot on Observable →</a>
+  </div>
+</template>
+
+<style scoped>
+
+h1 {
+  border-top: none;
+}
+
+</style>
+
+<style module>
+
+.promo {
+  margin: 96px auto 0 auto;
+  max-width: 1152px;
+  padding: 0 24px;
+  text-align: center;
+}
+
+.column {
+  margin: 2rem 0;
+}
+
+.column-header {
+  font-weight: 600;
+}
+
+.hed,
+.subhed,
+.column {
+  padding: 0 24px;
+}
+
+.hed,
+.subhed,
+.column-header {
+  text-wrap: balance;
+}
+
+.subhed {
+  margin-top: 1rem;
+  opacity: 0.7;
+}
+
+a.button {
+  display: inline-block;
+  border: 1px solid transparent;
+  text-align: center;
+  font-weight: 600;
+  white-space: nowrap;
+  background-color: var(--vp-c-neutral);
+  color: var(--vp-c-neutral-inverse);
+  border-radius: 20px;
+  padding: 0 20px;
+  line-height: 38px;
+  font-size: 14px;
+  margin: 0 24px;
+}
+
+a.button:hover {
+  text-decoration: none;;
+}
+
+@media (min-width: 640px) {
+  .promo {
+    padding: 0 48px;
+  }
+}
+
+@media (min-width: 768px) {
+  .promo {
+    margin-top: 128px;
+  }
+}
+
+@media (max-width: 959px) {
+  .promo {
+    max-width: 768px;
+  }
+  .column-header::after {
+    content: " · ";
+  }
+  .columns {
+    text-align: initial;
+  }
+}
+
+@media (min-width: 960px) {
+  .promo {
+    padding: 0 64px;
+  }
+  .subhed {
+    margin-top: 0.5rem;
+  }
+  .columns {
+    display: grid;
+    grid-template-columns: repeat(3, 1fr);
+  }
+  .column {
+    margin: 4rem 0;
+  }
+  .column-header {
+    margin-bottom: 0.5rem;
+  }
+  .column-header,
+  .column-body {
+    display: block;
+  }
+}
+
+</style>
diff --git a/docs/.vitepress/theme/index.ts b/docs/.vitepress/theme/index.ts
index 3e7f52c081..5849c74989 100644
--- a/docs/.vitepress/theme/index.ts
+++ b/docs/.vitepress/theme/index.ts
@@ -2,10 +2,12 @@ import DefaultTheme from "vitepress/theme-without-fonts";
 import {useData} from "vitepress";
 import {watch} from "vue";
 import PlotRender from "../../components/PlotRender.js";
+import CustomLayout from "./CustomLayout.vue";
 import "./custom.css";
 
 export default {
   extends: DefaultTheme,
+  Layout: CustomLayout,
   enhanceApp({app, router}) {
     Object.defineProperty(app.config.globalProperties, "$dark", {get: () => useData().isDark.value});
     app.component("PlotRender", PlotRender);