The Problem Posting short-form videos to YouTube, TikTok, and Instagram is time-consuming. SaaS tools charge $50-200/month. AI video generators cost even more. I wanted something different: fully autonomous, zero monthly cost, multi-platform. The Solution A single n8n workflow + Python pipeline that runs on a $5 VPS. Every day it: 🧠 Generates trending content with OpenRouter GPT-OSS-120B (FREE) 🖼️ Downloads matching images from Unsplash (50 req/hour, FREE) 🎙️ Creates voiceover with Microsoft Edge neural TTS (FREE) 🎬 Produces 25s vertical video with ffmpeg — transitions, subtitles, all of it 📤 Auto-posts to 4 platforms via Zernio API — YouTube Shorts, YouTube, TikTok, Instagram The Stack (All FREE) Service What It Does Cost OpenRouter AI content generation FREE Unsplash Background images FREE (50/h) Microsoft Edge TTS Neural voiceover FREE Zernio Multi-platform posting FREE (2 accounts) n8n Workflow automation FREE (self-hosted) ffmpeg Video production FREE (open source) Total monthly API cost: $0.00 How…