{"workflow":{"id":14973,"name":"Turn GitHub releases into audio updates and newsletters with OpenAI and ElevenLabs","views":0,"recentViews":0,"totalViews":0,"createdAt":"2026-04-10T09:58:11.663Z","description":"Deliver your product updates in a modern, accessible format. This workflow automatically transforms GitHub releases into podcast-style audio announcements and distributes them via email and Slack.\n\n---\n\n## 🎯 What This Workflow Does\n\nThis template bridges your development cycle with your marketing and communication channels.\n\n---\n\n### πŸ™ Step 1 β€” GitHub Trigger & Notion Synthesis\n\n- **GitHub Trigger:** Fires when a new release is published \n- **Parsing:** Converts raw markdown into structured categories (features, fixes, improvements) \n- **Notion Merge:** Enriches data with additional context from your Notion changelog database \n\n---\n\n### πŸŽ™οΈ Step 2 β€” AI Scriptwriting & Professional TTS\n\n- **Script Generation:** OpenAI converts technical notes into a conversational 60–90 sec script \n- **Voice Generation:** ElevenLabs turns the script into high-quality audio \n- **CDN Hosting:** Uploads MP3 via UploadToURL to generate a public URL \n\n---\n\n### πŸ“§ Step 3 β€” Multimedia Newsletter Delivery\n\n- **Subscriber Fetch:** Loads email list from Google Sheets \n- **Email Creation:** Builds a rich HTML email with embedded audio player \n- **Distribution:** Sends via Gmail using BCC list \n\n---\n\n### πŸ’¬ Step 4 β€” Internal Sync & Database Update\n\n- **Slack Alert:** Posts update with audio preview to team channel \n- **Notion Update:** Marks entry as published and stores audio URL \n\n---\n\n## ✨ Key Features\n\n- **Bidirectional Notion Sync:** Reads and updates changelog entries \n- **Conversational AI:** Converts technical updates into human-friendly audio \n- **Dynamic HTML Emails:** Includes inline audio playback \n- **High-Quality Voice:** Uses ElevenLabs for realistic narration \n\n---\n\n## πŸ”§ Setup Requirements\n\n### Required Integrations\n\n- **GitHub:** Personal Access Token (repo read scope) \n- **Notion:** Integration token + changelog database \n- **ElevenLabs:** API key + Voice ID \n- **OpenAI:** API key \n- **UploadToURL:** For MP3 hosting \n- **Slack:** Bot token \n\n---\n\n### Environment Variables\n\n- `NOTION_DATABASE_ID` \n- `APPROVER_EMAIL` \n- `DISCORD_WEBHOOK_URL` \n- `SLACK_CHANNEL_ID` \n\n---\n\nHumanize your software updates. Import this template and start broadcasting your product journey with audio.","workflow":{"meta":{"instanceId":"277842713620d9f5554de3b1518b865a152c8c4db680008bd8aec536fc18b4a8"},"nodes":[{"id":"0721f8d0-1413-40ce-a5c4-9cbe6fd5a8c7","name":"πŸ“‹ MAIN β€” Workflow Overview","type":"n8n-nodes-base.stickyNote","position":[-128,-912],"parameters":{"width":780,"height":1028,"content":"## πŸŽ™οΈ Product Update Audio Announcements β€” Changelog to TTS Audio\n\n**What this workflow does:**\nEvery time a new release is pushed to your GitHub repository (or a Notion changelog page is updated), this workflow:\n1. Fetches the raw changelog/release notes from GitHub Releases API\n2. Pulls the matching structured release notes from a **Notion** database (rich formatted content)\n3. Uses **OpenAI** to rewrite the technical changelog into a natural, podcast-style spoken script\n4. Sends the script to **ElevenLabs TTS API** to generate a professional MP3 audio file\n5. Uploads the MP3 via **UploadToURL** to get a permanent public audio URL\n6. Uses the **HTML node** to compose a beautifully formatted email newsletter with the audio player embed, changelog summary, and a 'Listen Now' CTA button\n7. Sends the newsletter via **Gmail** to your subscriber list (loaded from Google Sheets)\n8. Posts a Slack message to your internal `#product-updates` channel with the audio URL and release summary\n9. **Writes back** to the Notion changelog page β€” marks it as 'Audio Published' with the hosted audio URL\n\n**Architecture (unique from all previous templates):**\n- πŸ™ GitHub Trigger (watches releases β€” NEW trigger type)\n- πŸ““ Notion β€” fetch release notes page (NEW: database query)\n- πŸ€– OpenAI β€” rewrite to spoken script (NEW: different prompt purpose)\n- πŸŽ™οΈ ElevenLabs TTS API β€” audio generation (NEW: TTS node)\n- ☁️ UploadToURL β€” host the MP3 file (mandatory)\n- πŸ“‹ Aggregate Node β€” bundle subscriber emails (NEW node type)\n- 🌐 HTML Node β€” compose rich email body (NEW node type)\n- πŸ“§ Gmail β€” send newsletter to subscribers (NEW: email delivery)\n- πŸ’¬ Slack β€” post to #product-updates channel (NEW: Slack node)\n- πŸ”„ Notion Update β€” write-back audio URL to source page (NEW: bidirectional)\n\n**Setup Requirements:**\n1. GitHub credentials (personal access token with `repo` read scope)\n2. Notion Integration Token β€” share your Changelog database with the integration\n3. Notion Database ID for your changelog (from the database page URL)\n4. OpenAI API credentials\n5. ElevenLabs API Key + your preferred Voice ID (from elevenlabs.io/voices)\n6. UploadToURL endpoint configured in upload node\n7. Gmail OAuth2 credentials\n8. Google Sheets with subscriber emails β€” sheet named `Subscribers` with column `Email`\n9. Slack Bot Token with `chat:write` scope β€” set channel to `#product-updates`\n10. Notion credentials again for the write-back step"},"typeVersion":1},{"id":"6eeaf206-5041-41fd-bd21-2e434d5e9389","name":"πŸ“ Note β€” GitHub Trigger, Parse & Notion Fetch","type":"n8n-nodes-base.stickyNote","position":[704,128],"parameters":{"color":7,"width":616,"height":616,"content":"### πŸ™ Step 1 β€” GitHub Release Trigger & Notion Fetch\n**GitHub Trigger:** Fires on every new GitHub Release published to your repo (uses GitHub webhooks β€” not polling). Captures tag name, release name, release body (raw markdown changelog), author, and release URL.\n**Code β€” Parse Release:** Cleans the raw markdown changelog into plain text. Extracts version number, release date, and categorises changes into `features`, `fixes`, and `improvements` arrays by scanning bullet prefixes.\n**Notion β€” Query Database:** Searches your Notion Changelog database for a page matching the version tag. Retrieves the richer formatted description, product area tags, and any manually added context β€” supplements the raw GitHub release body."},"typeVersion":1},{"id":"aa818069-eff9-43f7-9f2d-143ba805908c","name":"πŸ“ Note β€” Script, TTS & UploadToURL","type":"n8n-nodes-base.stickyNote","position":[1328,112],"parameters":{"color":7,"width":1128,"height":632,"content":"### πŸŽ™οΈ Step 2 β€” Script Writing, TTS Generation & Upload\n**OpenAI β€” Spoken Script:** Rewrites the combined GitHub + Notion content into a warm, conversational podcast-style spoken announcement (60-90 seconds when read aloud). Avoids markdown, bullet points, and jargon.\n**ElevenLabs TTS:** Sends the script to ElevenLabs `/v1/text-to-speech/{voice_id}` endpoint. Returns raw MP3 binary audio. Voice, stability, and similarity boost are all configurable.\n**UploadToURL:** Uploads the MP3 binary and returns a permanent public URL β€” this URL is used in the email embed, Slack message, and Notion write-back."},"typeVersion":1},{"id":"bb19ab3c-6d68-4732-82fa-ca35a56ddecf","name":"πŸ“ Note β€” Subscribers, HTML Build & Gmail Send","type":"n8n-nodes-base.stickyNote","position":[2496,112],"parameters":{"color":7,"width":1032,"height":632,"content":"### πŸ“§ Step 3 β€” Subscriber Load, HTML Email & Gmail Send\n**Google Sheets β€” Load Subscribers:** Reads all rows from the `Subscribers` sheet. Each row contains at minimum an `Email` field. Returns one item per subscriber.\n**Aggregate Node:** Bundles all subscriber email addresses into a single comma-separated string β€” used as the Gmail BCC list so one send covers all subscribers.\n**HTML Node:** Composes a fully formatted HTML email with: audio player embed (using `