Public OSS learning project: paste a URL (+ optional timestamps) → Go Fiber API shells out to yt-dlp and ffmpeg → temporary download link. Built to help others read a small real Go HTTP service.

Highlights

• Fiber API: platform routing, process orchestration, temp file cleanup via goroutines
• ffmpeg -c copy trim (start-only / end-only / both / full copy)
• Next.js 15 form with Zod + React Hook Form validation; Docker Compose split stack
• Production cookie-path handling for yt-dlp bot checks

Honest scope

YouTube path is complete. Instagram / X return HTTP 501 stubs; Facebook is UI-only. No auth, DB, or signup — by design. README still marks active development.