Document payment-free OSS self-host quick start and Docker Hub overview.

DOCKERHUB_OVERVIEW.md

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+# Songs2VID
+
+Payment-free, self-hosted software that turns cover art and audio into YouTube videos (FFmpeg + BullMQ). Full entitlements in every deployment — no plans, credits, Stripe, or paywall.
+
+**Image:** `atakanozban/songs2vid:latest`
+
+**Docs:** https://docs.songs2vid.com  
+**Source:** https://git.atakanozban.com/Songs2VID/songs2vid  
+**Hosted SaaS (separate):** https://songs2vid.com
+
+## Quick start
+
+1. Clone the repo (Compose + `.env.example`) from Gitea, or reuse the sample `docker-compose.yml`.
+2. Copy `.env.example` → `.env` and set:
+   - `NEXTAUTH_SECRET`
+   - `GOOGLE_CLIENT_ID`
+   - `GOOGLE_CLIENT_SECRET`
+3. Enable **YouTube Data API v3** in Google Cloud and add OAuth redirect:
+   - `http://localhost:3000/api/auth/callback/google` (or your public HTTPS origin)
+4. Run:
+
+```bash
+docker pull atakanozban/songs2vid:latest
+docker compose up -d --build
+```
+
+Open http://localhost:3000 → sign in with Google → dashboard.
+
+No Stripe or billing environment variables are required.
+
+## What you get
+
+- Batch encode: cover art + audio → YouTube upload
+- Classic and art-track layouts, blur, typography, watermarks
+- Playlists, privacy, tags, resolutions
+- REST API (Dashboard → Settings → API key)
+- Always-on self-hosted entitlements
+
+## Stack
+
+Next.js 15 · PostgreSQL/Prisma · Redis/BullMQ · NextAuth (Google + YouTube) · FFmpeg
+
+## Links
+
+- Full documentation: https://docs.songs2vid.com
+- Getting started: https://docs.songs2vid.com/docs/getting-started
+- Environment variables: https://docs.songs2vid.com/docs/environment
+- REST API: https://docs.songs2vid.com/docs/api/overview