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

An episode of [How I AI](https://invisiblenetwork.ai/podcast/1809663079), 31 Oct 2025, 12 min.

Audio: https://anchor.fm/s/1035b1568/podcast/play/110506204/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2025-9-31%2F410359922-44100-2-275e04129b4f1.mp3

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. — Where to find Marco Casalaina: LinkedIn: https://www.linkedin.com/in/marcocasalaina/ X: https://x.com/amrcn_werewolf?lang=en — 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 — 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 — 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 — Production and marketing by https://penname.co/. For inquiries about sponsoring the podcast, email jordan@penname.co.

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