Castmagic Shorts: Repurpose podcast clips into social video reels automatically

Independent podcasters and small content agencies produce hours of long-form audio each week, but the highest-leverage distribution channel now sits in vertical short video on TikTok and Reels. The manual work of finding a compelling 30 to 60 second moment, cutting it, adding a talking-head visual, and burning in accurate captions is tedious and repetitive. Most solo podcasters skip it entirely, leaving reach on the table. Castmagic Shorts ingests a full podcast episode and auto-generates a batch of caption-ready vertical clips optimized for TikTok and Reels formatting. The MVP is narrow and deliverable: upload audio or video, run transcription plus a clip-scoring model to surface the most quotable or engaging segments, auto-frame the speaker, burn in styled captions, and export in 9:16 with platform-appropriate specs. Revenue is a straightforward SaaS subscription with tiers based on upload minutes and export volume, likely 19 to 49 dollars per month for independents and a higher agency tier that supports multiple client workspaces. Go-to-market starts where podcasters already gather: podcasting subreddits, HN, creator Discords, and direct outreach to small audio agencies who repurpose for clients. The growth loop is the exported clips themselves carrying a subtle watermark plus caption styling that other creators notice and ask about, driving referral discovery. Agencies who standardize on the tool become repeat, multi-seat accounts.