A ground-up technical walkthrough of WebAuthn and passkeys — how the cryptography actually works, the registration and authentication ceremonies in detail, a working SimpleWebAuthn implementation, attestation demystified, fallback strategy, and the UX traps that derail production deployments.
Development & Software Engineering
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Passkeys and WebAuthn in Practice: A Developer's Complete Guide -
.NET Framework 4.8 + IIS + SQL Server: A Modern Development and Deployment Workflow for Legacy Apps A practical, end-to-end guide to working productively on a .NET Framework 4.8 / IIS / SQL Server app in 2026 — workstation setup, isolated local development with Docker Windows containers, per-developer databases, web.config transforms, build pipelines, Web Deploy / Octopus deployment patterns, and the realistic modernization on-ramp.
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Dependency Management: Lock Files, Vulnerability Scanning, and Keeping Deps Fresh Without Pain A practical guide to managing project dependencies across ecosystems: lock files, semantic versioning, vulnerability scanning, automated updates, and the processes that keep dependency rot from killing your project.
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Feature Flags: Safe Deployments, Dark Launches, and Rolling Rollouts Feature flags decouple code deployment from feature release, letting you ship dark, roll out progressively, and kill switches instantly — without a redeploy.
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Local Development Environments: Dev Containers, Nix Flakes, and Reproducible Setups A comprehensive guide to eliminating 'works on my machine' problems using Dev Containers, Nix flakes, and mise — covering everything from simple devcontainer.json configs to full Nix-based reproducible environments, docker-compose service integration, CI parity, and real-world examples by stack.
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OpenAPI and Swagger: Designing and Documenting APIs Contract-First Learn how to design and document APIs contract-first using the OpenAPI Specification — covering document structure, schemas, security, code generation, and the full tooling ecosystem from Swagger UI to Prism mock servers.
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Profiling Applications: Finding Bottlenecks in Go, Python, and Node.js Stop guessing why your application is slow. This guide covers systematic profiling tools and techniques for Go (pprof), Python (cProfile, py-spy, line_profiler), and Node.js (clinic.js, V8 profiler) so you can find the actual bottleneck and fix it with confidence.
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Writing Good READMEs: Documentation That Developers Actually Read A practical guide to writing READMEs that developers actually read — covering structure, examples, anti-patterns, and templates for open-source and internal projects alike.