add live user count

src/content/docs/donate.mdx

@@ -11,3 +11,4 @@ services please consider donating through one of the following methods:
 A huge thank you to our current sponsors:
 
 - @VeryLoud: CAD$100
+- @Aristarchus of Samos: CAD$100

src/content/docs/index.mdx

@@ -3,7 +3,7 @@ title: Home
 template: splash
 hero:
     title: Experience free, fast, and private software with Federated Nexus
-    tagline: Federated Nexus is a community resource hosting multiple FOSS (especially federated) services, including Matrix and Forgejo.
+    tagline: Federated Nexus is a community resource hosting multiple FOSS (especially federated) services, including Matrix and Forgejo. We currently have <span id="user-count">over 400</span> users.
     image:
         file: ../../images/icon.svg
     actions:
@@ -54,3 +54,13 @@ import { CardGrid, Card } from "@astrojs/starlight/components"
     </Card>
 
 </CardGrid>
+
+<script>
+    {`
+	(async () => {
+		const response = await fetch("https://matrix.federated.nexus/_continuwuity/local_user_count")
+		const json = await response.json();
+		document.querySelector("#user-count").innerText = json["count"]
+	})()
+`}
+</script>