When Zigbee devices keep dropping, the culprit is almost always the mesh topology, not the sensors. Add mains-powered routers every 10 to 15 meters. Move the coordinator away from the WiFi router and any USB 3.0 port. Switch to Zigbee channel 15, 20, or 25 to dodge WiFi. Use the network map in Zigbee2MQTT or ZHA to spot weak links. Roughly 90% of complaints trace back to three things: too few routers, a coordinator in an RF hot zone, and a Zigbee channel that clashes with WiFi.
Deploy Prometheus to scrape metrics from node_exporter on each Linux server. Then chart it all in Grafana with CPU, memory, disk, network, and systemd service health. The full stack (Prometheus 3.x, node_exporter 1.10, Grafana 11.6) can watch a 10-server homelab on one Raspberry Pi 4 or a small VM with 1GB RAM. The community Node Exporter Full dashboard (Grafana ID 1860) gives you production-grade views in under 30 minutes.
Connect a free 17track.net account to Home Assistant and you can pull tracking data from 3,200+ carriers into one place. From there, automations ping your phone, fire the porch camera, and toggle outdoor lights as boxes move through the system. Below is a working blueprint for the whole flow, from setup to multi-user alert tuning.
17track.net is a tracking aggregator. It pulls status updates from USPS, UPS, FedEx, DHL, Royal Mail, China Post, YunExpress, and roughly 3,200 other carriers across 220 countries. Once you add tracking numbers to your 17track account (by hand, through the mobile app, or via email forwarding), the Home Assistant integration mirrors them as sensor entities. You can then display them and build automations on top.
Yes, you can build a self-healing, redundant distributed storage cluster using Ceph
across three Linux nodes. It’s less painful than its reputation suggests, thanks to the modern cephadm tool. You get block storage (RBD) for VMs, a shared POSIX filesystem (CephFS) for many clients, and S3-compatible object storage if you want it. Your data survives the loss of any node, rebalances on its own when hardware changes, and scales from a homelab to petabyte production by adding more disks.
The Home Assistant Energy Dashboard shows you where your power comes from, where it goes, and what it costs. If you have solar panels and a battery, it’s the best way to track output, storage cycles, grid flow, and per-device use, all without your inverter maker’s cloud app.
Setup takes care, though. The dashboard wants specific sensor types with specific attributes. Get those wrong and you get blank graphs or wildly wrong numbers. Below: the sensor rules, how to wire up popular inverter and battery brands, the dashboard setup itself, and some custom sensors for deeper insight into your solar setup.
Yes. For many workloads, systemd-nspawn
beats Docker on leanness, simplicity, and host integration. It shines on servers and homelabs where you want isolated environments without daemon overhead. You launch a container with one command, manage it with machinectl, and run it as a systemd service. All the tools already ship with every modern Linux system.
That said, Docker and nspawn solve slightly different problems. Knowing where each one wins makes the choice easy.
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