Monitoring nftables Firewall Rules with Prometheus and Grafana
Turning nftables rule counters into Prometheus time series with a custom exporter and Grafana dashboards, using rule comments as stable human-readable labels.
grafana
Building a Stratum 1 NTP Server with GPS/PPS on Raspberry Pi
Turning a Raspberry Pi 4 and a u-blox ZED-F9P into a stratum 1 LAN time server with chrony, PPS, Prometheus, and Grafana, including the ntpd detour that wasted a perfectly good evening.
Monitoring UPS Systems with NUT, Prometheus, and Grafana
Monitoring two Eaton UPS units across FreeBSD and Arch Linux ARM with NUT, DRuggeri's nut_exporter, Prometheus, and Grafana.
Monitoring Gardena on NixOS with prometheus-gardena-exporter
Get Gardena smart system data out of the phone app and into Prometheus and Grafana with a Rust exporter, a NixOS module, and per-valve water-use estimates that are honest about what the hardware can and cannot measure.
Running Hickory-DNS as a Full Authoritative + Recursive DNS Server on NixOS
Building hickory-dns from source with Nix, generating zone files from a host registry, wiring up DDNS with Kea DHCP, hardening with systemd, and monitoring the whole thing with Prometheus and Grafana.
Prometheus Ecowitt Exporter on NixOS
Getting Ecowitt weather station data into Prometheus and Grafana with a Rust exporter and a NixOS module — with forwarding to Home Assistant and other receivers.
Monitoring PostgreSQL on NixOS with pg_exporter
Why the nixpkgs postgres_exporter might not be enough, and how to package pg_exporter from the Pigsty project as a NixOS module — with Nix-native YAML collector configuration, one-toggle Grafana dashboards, and Prometheus wiring.