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Shownotes
John Lindquist created egghead.io, a developer education platform used by hundreds of thousands of working engineers. These days he’s building mega.dev, a hands-on program specifically for developers who want to do real work with AI agents, not just prototype them.
What you’ll learn:
• Why Jev is a decision engine, not a chatbot, and what that distinction actually changes about how you build
• How John built a real-time voice to-do app that classifies and executes commands with no visible pause
• The data deduplication pattern that merges messy records in milliseconds using confidence scores
• Why Jev works best as a router, and how a single text input can navigate users deep into an app
• What a chess match between Jev and a low-reasoning LLM reveals about speed, cost, and when to use which
• The multi-step classification pattern John reaches for when one Jev pass isn’t enough
• Where Jev falls short, and when you should still reach for a full generative model
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Brought to you by:
Vanta (vanta.com/howiai)—Automate compliance and simplify security
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In this episode, we cover:
() John Lindquist returns for Jev week
() What Jev actually outputs
() Demo: real-time voice to-do app
() How sequential Jev calls chain together
() Demo: plain English to function name (grocery cart)
() Demo: data deduplication and record merging
() Confidence scores and multi-model validation
() Demo: Jev as a multi-level app router
() Architecting around Jev
() Demo: Jev vs. traditional LLM at chess (speed and cost benchmarks)
() DOM interactions as a decision set, not an infinite canvas
() Demo: Wikipedia “path to philosophy” route mapper
() Demo: multi-agent coordination and collision avoidance
() Demo: real-time presentation coach
() Quick recap
() Lightning round and final thoughts
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Tools referenced:
• Jev (TypeSafe AI decision model): typesafe.ai/blog/introducing-system-one-models…
• Vercel AI Gateway: vercel.com/docs/ai-gateway
• OpenRouter: openrouter.ai
• Opus 5.5 (mentioned in context of iterative demo building): anthropic.com/claude-opus-5-5
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Where to find John Lindquist:
LinkedIn: linkedin.com/in/john-lindquist-84230766
X: x.com/johnlindquist
Mega.dev: mega.dev
Egghead.io: egghead.io
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Where to find Claire Vo:
ChatPRD: chatprd.ai
Website: clairevo.com
LinkedIn: linkedin.com/in/clairevo
X: x.com/clairevo
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Production and marketing by penname.co. For inquiries about sponsoring the podcast, email jordan@penname.co.
