--- title: Git Isn't a Diff Tracker: How Blobs, Trees, DAG Commits, and the Index Actually Work Under the Hood published: true description: A visual, 10-minute deep dive into Git internal architecture. Learn how content-addressed storage works, why Git never stores diffs, how the index prepares tree...
Read articleI found out at 9am what my software did at 3am. That's the whole story of unattended automation in one sentence, and I had to live it before I believed it. The automation was supposed to be the responsible kind. Every night it reconciled the day's payments against our processor, found the charges t...
Read articleAn AWS bill can go up for an excellent reason. You enable audit logging. Improve threat detection. Strengthen backups. The following month, the spending curve climbs. The chart says: “This costs more.” It does not say: “We bought visibility and reduced a risk.” Conversely, a stable bill can hide...
Read article# “It Worked” Is Not the Same as “It Can Run in Production” You are probably the kind of reader I have in mind if: - you already use ChatGPT, Claude, or another LLM; - you have used GitHub or built a simple automation; - AI agents and automation interest you, but governance or approval design is n...
Read article--- title: "I forked a live AI agent three ways, and every copy came up with its web server already running" published: true published_at: 2026-10-05 14:46 +0300 description: "An agent built an app inside a DigitalOcean Managed Agents microVM. I checkpointed it, forked it three ways, screenshotted e...
Read article# Building an Autonomous Competitor Price Monitor with Python, Playwright, and Discord (Zero SaaS Fees) In dynamic e-commerce sectors, missing a competitor's flash sale or midnight re-pricing event by even three hours can wipe out daily margins. If your competitor cuts an anchor SKU by 15%, your co...
Read article--- title: "We Deleted Our CI. The Machine Ships Anyway." published: true tags: discuss, devops, ci, automation canonical_url: https://mrsaynothing.dev/en/blog/2026-10-01/we-deleted-our-ci cover_image: https://mrsaynothing.dev/blog/2026-10-01/banner.jpg description: "Today this site deleted its CI —...
Read articleHey friends! Stop wasting time collecting compliance screenshots! In Season 6, Episode 5 of The Adventures of Blink, we dive deep into NIST SP 800-53 CM-3(3): Automated Mechanism Deployment. While the control statement seems short and straightforward, organizations consistently fail by ignoring the...
Read article[](https://img.youtube.com/vi/wPdoZRbvaF4/maxresdefault.jpg) How do you currently test your AI agents? If you're like most developers building agentic workflows, you probably rely on the **"vibe check"**: tweak a prompt, run a couple of manual queries, check if the output looks reasonable, and ass...
Read article*What a refractometer taught me about observability* [In July](https://www.kenwalger.com/blog/ai/mcp/the-field-agent-sovereign-vineyard-mcp/?utm_source=dev_to&utm_medium=article&utm_campaign=systems_under_fermentation), I wrote about a farmer walking a vineyard row at dawn, crushing a grape onto a ...
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