Testing Risky Postgres Migrations Safely with Volume Cloning on Unikraft Cloud
Database migrations can pass every check in development and still take production down, and the classic example is adding a NOT NULL column with no…
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A Stranger's Pull Request Almost Stole My Cloud Credentials. So Every CI Job Gets a Fresh microVM Now.
My self-hosted CI runner was the least trusted machine I owned. Now every job runs in a disposable Firecracker microVM on Krova Cloud — here's the s…
Why I Run My Postgres on a microVM Now
I used to be the person who told everyone to use a managed database. "Don't self-host Postgres," I'd say. "You're not a DBA. Let AWS handle backups…
Your Side Project Doesn't Need a Public IP. Here's the Proof.
I used to think every server needed a public IP. It's just... how servers work, right? Then I moved my side project , a small Node.js API with a Pos…
I Built a Serverless VPN on Lambda MicroVMs — 12 Builds, 5 Dead Ends, 1 Working Architecture
TL;DR I built a personal VPN using AWS Lambda MicroVMs. Your traffic exits from AWS. When you disconnect, the MicroVM terminates — zero cost, nothin…
Running a container inside a non-privileged microVM, on an Apple Silicon Mac
If you let an AI agent run arbitrary code — npm install , a test suite, docker build , a Playwright run — you are running untrusted code , and a sha…