Vibe-coding a kid-friendly AI fortune teller for your Halloween festivities | Marco Casalaina (Microsoft VP)

How I AI

In this impromptu Halloween special, Marco Casalaina (VP of Products for Core AI at Microsoft) demonstrates how he uses GitHub Spark to quickly build a mobile app that generates kid-friendly fortunes for trick-or-treaters.

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Where to find Marco Casalaina:

LinkedIn: https://www.linkedin.com/in/marcocasalaina/

X: https://x.com/amrcn_werewolf?lang=en

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Where to find Claire Vo:

ChatPRD: https://www.chatprd.ai/

Website: https://clairevo.com/

LinkedIn: https://www.linkedin.com/in/clairevo/

X: https://x.com/clairevo

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In this episode, we cover:

(00:00) Intro

(00:40) Marco’s Halloween fortune teller tradition

(02:54) Using GitHub Spark to create a fortune teller app

(04:32) Using Spec Kit for scoping out complex feature specs

(06:53) Making fortunes more concrete and kid-friendly

(10:20) Closing thoughts

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Tools referenced:

• GitHub Spark: https://github.com/features/spark

• SpecKit: https://github.com/github/spec-kit

• GitHub Copilot: https://github.com/features/copilot

• Cursor: https://cursor.com/

• Claude Code: https://www.claude.com/product/claude-code

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