Stories by janpio

We Raised $5.7M to Launch Cto.new Completely for Free

Amp Free

We're Now ISO 27001 Certified. Our Lessons Learned

Strawberry (The Self-Driving Browser)

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

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