Reduce redundancy: LED Matrix dup, 3-2-1 wording, Synology SHR

infra/index.njk

@@ -42,7 +42,7 @@ sections:
 <section class="about-expanded">
   <h2>The setup at a glance</h2>
   <p>The infrastructure runs on three main machines: a Proxmox VE host (Beelink S12 Pro, 32GB RAM) as the primary compute node, a Synology DS918+ NAS for storage and Docker services, and a Xubuntu VM on Proxmox for development. An OpenWrt router handles multi-WAN failover with WiFi and Powerline backhaul, and four Zyxel GS1200-8HP managed switches distribute the network across the flat.</p>
-  <p>The whole stack is monitored via Prometheus and Grafana, with node exporters on every machine, cAdvisor for container metrics, and SNMP exporters for network hardware. Backups follow a 3-2-1 strategy: local snapshots, NAS copies, offsite sync to a Raspberry Pi in a different room, and cloud archive for worst-case scenarios.</p>
+  <p>The whole stack is monitored via Prometheus and Grafana, with node exporters on every machine, cAdvisor for container metrics, and SNMP exporters for network hardware. Backups follow a layered strategy: local snapshots, NAS copies, offsite sync to a Raspberry Pi in a different room, and cloud archive for worst-case scenarios.</p>
 
   <h2>Why Proxmox</h2>
   <p>Proxmox VE was chosen over alternatives like ESXi or plain Docker for several reasons. The open-source model means no licensing headaches. LXC containers provide near-native performance for lightweight services without the overhead of full VMs. The web UI makes it easy to manage snapshots, backups, and migrations. And the ZFS support on the underlying Debian system gives us reliable snapshots and send/receive for the backup chain.</p>