Secure Group Chats With MLS You Can Ship: Keys, Servers, and Real‑World Rollouts
A practical guide to building end‑to‑end encrypted group messaging with MLS: how the protocol works, server roles, clients, performance, and UX.
Ship Safe AI Agents: Scopes, Tool Sandboxes, and Audits That Hold Up
Tool‑using AI can help, but it can also delete files or leak data. Here’s a practical blueprint to scope, sandbox, and audit agents you can trust.
Build Reliable AI in Spreadsheets: Formulas, Validation, and Automations That Don’t Break
Turn Google Sheets or Excel into a trustworthy AI workspace. Learn structure, prompts, scripts, and guardrails that keep data clean and models in check.
Build Your Own Private Knowledge Graph: Files, Email, and Notes You Can Actually Search
Turn scattered files, emails, and notes into a private, local-first knowledge graph with fast hybrid search and simple, reliable tools.
AV1 Streaming End to End: Practical Encoding, Playback, and CDNs for Real Audiences
A clear, hands-on guide to shipping AV1 video: encoding ladders, live vs VOD, packaging, player logic, and CDN tricks that keep streams smooth.
CXL Memory in Small Labs: Tier, Pool, and Stretch RAM for Real Workloads
Learn how to add CXL memory to a modest server, tier it safely, and even pool it across hosts—without turning your lab into a science project.
Thunderbolt 5, Explained for Real Setups: Docks, Displays, eGPUs, and Storage That Actually Work
A practical guide to Thunderbolt 5 for people who build with their machines: what it is, what it can power, how to buy the right gear, and how to avoid gotchas.
Build a Fediverse Photo Frame for Home: Calm ActivityPub Feeds on a Quiet Screen
Turn a small screen into a calm social photo frame. Follow friends across Mastodon and Pixelfed, filter noise, cache locally, and keep it private.
Make Your Laptop’s NPU Useful: Practical Workflows, Power Gains, and What to Run Locally
Your laptop has an NPU. Here’s how to pick tasks, route models, and measure power so local AI is fast, quiet, and private.
Open-Loop Transit Payments Without Pain: cEMV, Fare Capping, and Validators That Work
Riders expect to tap and go. Here’s how agencies launch open-loop contactless with capping, low risk, and hardware that won’t fail in real life.