HarshAI: I Built a Zapier Killer in 40 Days (Open Source)

HarshAI: I Built a Zapier Killer in 40 Days (Open Source) 40 days, 90 planned features, 44% complete. Here's what I built. Why I Started Zapier is expensive. Make.com has a learning curve. I wanted something: ✅ Free & open source ✅ Drag-drop builder ✅ Self-hostable ✅ Built for AI workflows So I started building HarshAI. What's Built (Days 1-40) Phase 1: Core Builder (Days 1-15) Drag-drop workflow builder Node-based interface Real-time connections Mobile-responsive design Template system Phase 2: Execution Engine (Days 16-25) Workflow execution engine Real API integrations (Gmail, Twitter, Notion, Slack) Test mode (no credentials needed) Error handling Execution history Phase 3: Advanced Features (Days 26-35) Background scheduler (cron) Email notifications Analytics dashboard Webhook triggers (Days 31-35): HMAC signature verification (Stripe-style) Retry logic with exponential backoff Analytics dashboard Event-based filters Phase 4: Template & Execution (Days 36-40) Template mar