janpio

Cache smuggling: When a picture isn't a thousand words

The Gem Cooperative

Vibe engineering

Token economics are serious AI business; API costs are out of control

Building an AI agent from scratch in Python

Rebuilding Devin for Claude Sonnet 4.5: Lessons and Challenges

Code Mode: the better way to use MCP

MCP vs. CLI: Benchmarking Tools for Coding Agents

Partnering to make full-stack fast: deploy PlanetScale databases from Workers

How to build your own design GPT assistant (like we did)

Ruby Central Fact Check

My Thoughts on Euruko

Making of "Printing Types"

A board member's perspective of the RubyGems controversy

Personal Note

Iteration is the new product moat

Relationships outside an appropriate age range

Letter from the (Runna) Founders

Stencil Reframed: Community-Driven Governance Takes Center Stage

Shopify CEO tells teams to consider using AI before growing headcount

The Empty Promise of AI-Generated Creativity

Balsamiq's next chapter: A fresh new look for a well-loved tool