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Articles
2026
A NixOS Major Upgrade Without Relying on Luck: 25.11 to 26.05
How I safely upgraded a ThinkPad that doubles as a desktop, development environment, and self-hosted server by prebuilding the full closure, freezing application versions, deploying with boot, backing up state, and validating the result in layers.
TLS Basics and a Real Traefik “Not secure” Incident
A compact TLS primer plus a full troubleshooting chain for a macOS Chrome/Safari Not secure warning, ending with a minimal, reliable fix.