Built an Instagram auto-publisher that

Built an Instagram auto-publisher that posts a Reel every day at 7 PM with zero manual work.

How it works: → Drop a video into a Google Drive folder → Gemini AI writes the caption: hook, 5 hashtags and a call to action → The Reel joins a Google Sheets queue with its exact go-live date → At 7 PM the Instagram Graph API publishes it automatically

Built to run unattended: chunked uploads for videos up to 300 MB, it waits for Instagram's processing, retries on errors, refreshes its access token weekly, and emails me if anything fails or the queue runs low.

Result: consistent daily posting, and the only job left is recording videos.

Stack: Google Apps Script · Instagram Graph API · Gemini API · Google Drive · Google Sheets

Want this for your brand (Instagram, Facebook, LinkedIn or YouTube Shorts)? Message me.