An in-house podcast pain point turned SaaS: transcribe any long-form audio or video, then one-click it into multi-platform content. Cold-started on AppSumo.
Fewer bars = easier, cheaper, or faster for an AI-assisted solo builder. Editorial judgments based on the case details.
Founder Brian Borlas (Harvard '13, host of the DTC Pod podcast) built Cast Magic: import any long-form audio or video (podcast / Zoom / a link / an iOS voice memo) → transcribe → one-click generate multi-platform content from a template or from writing samples the user supplies (a LinkedIn post, for example). It started from his own pain — outsourced podcast content always felt like it “lost the value.” Once co-founder Ramon and developer Justin joined, they spent roughly two months on the MVP and a three-week sprint to launch.
2 more sections — the full story, the playbook, the risks, and the numbers. Free account unlocks everything.
Create free accountEmail code only. No password.The quick-reference card — acquisition channels, replication playbook, and risk map — unlocks with a free account.
Create free accountEmail code only. No password.Paste into Claude Code / Codex and get a working version of this product end-to-end.
Two production-grade prompts per idea: a full build spec and an SEO growth plan. Copy, paste, ship.
Go Pro — $10/moCancel anytime.Every claim traces back to a source video.
Source video links unlock with a free account. Full transcripts are Pro.
Create free accountEmail code only. No password.Data credibility: ⚠️ Secondhand: a Bilibili breakdown channel relaying a Western interview, with founder-reported numbers, not independently verified. All revenue figures are founder-reported or estimated by the video creator — unaudited.