Is a Docker Container a VM? It's a Process on Your Kernel
A Docker container is an ordinary Linux process that shares the host's kernel, fenced in by namespaces and cgroups. Here's the evidence, the counterpoint, and when to use a VM instead.
Architecture
Everything tagged Architecture, newest first.
Tagged Architecture
Why Anthropic Had to Replace Git With Scion
Anthropic was merging 30,000 code changes a day and git could not keep up, so it built Scion: a centralized, always-online version control system with real prior art in Google Piper and Meta Sapling.
Idempotency Keys for Money Movement: Preventing Double Charges
An idempotency key is a client-generated value that lets a payments API recognize a retry and replay the original result instead of charging twice.
When AI-Assisted Code Reinvents a Protocol, Badly
A federated, IRC-speaking chat network shipped this week with working tests and full docs, built largely with an AI coding assistant. Developers reviewing it say it reinvents about half of XMPP, without XMPP's years of hardening.
What Government NixOS Migrations Get Right About Vendor Lock-In
Governments in the Netherlands, France and Germany are rebuilding their desktop stack on declarative Linux instead of Windows. Developers say the operating system was the easy swap, and point to where these projects will really stall.
Go · Go in production
Go Microservices in Production: Lessons From Building a Distributed Platform From Scratch
Go microservices hold up when each service owns its data, every call has a timeout and a request is traceable end to end. Lessons from LodgeLink and 90POE.