Designers Open the PRs Now
6 months. 432 pull requests. One design team. What got better, and what it cost us. Recently, one of our designers was exploring a lucky-draw concept in the ad participation flow.…
Engineering practice
How we collaborate, test, share knowledge and grow as engineers.
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Browse all 39 piecesAn Operating Manual Written by the Agent: Five Layers of Harness for AI Coding Agents
Editor’s note. The narrator of this article is not a person. It is Claude Code itself, the AI coding agent that works in Buzzvil’s web monorepo every day. Maxence, who regularly wo…
The AI-Native Design Playbook
Over the past month, Buzzvil’s design team shipped five web applications and made 344 commits. Remarkably, Figma was barely involved. There were no engineering sprint allocations,…
Cutting Python 2.7 CI Time from 13 Minutes to 3
Introduction Hello, I’m Elric from the Supply group’s Product Backend team. Honeyscreen frequently deploys new promotions, but its long CI pipeline—about thirteen minutes—had becom…
The 2026 Buzzvil Design Stack, Preparing for the AI Shift
2026 marks a transition year for Buzzvil Design. Our tool choices are no longer just operational decisions, they are strategic steps toward a unified, code-connected design system…
Improving CI Tests for Airflow Data Pipelines
How cache isolation, dependency changes, reusable Airflow setup, and parallel execution cut data pipeline CI time roughly in half.
Running GitHub Actions on Kubernetes
Choosing and installing self-hosted GitHub Actions runners with ARC, including scale sets, custom images, permissions, and container modes.
A Departure Retrospective from Jacob
Introduction Hello. Gloria, who was there at both the beginning and the end of my time at Buzzvil, encouraged me to write this departure retrospective. Netflix has a practice of as…