self-hosted 
Self-Hosting ntfy: Push Notifications Under 50MB RAM
A complete guide to setting up ntfy on a 1GB Debian Lightsail instance with Nginx, Let's Encrypt, WebSocket support, and Jenkins CI integration.
Building a Production Kubernetes Cluster on Bare Metal
A complete walkthrough for setting up a 3-node on-premise Kubernetes v1.35 cluster on Ubuntu 24.04 with Calico CNI, MetalLB, NGINX Ingress, and local-path storage.