Scope: I need an MVP web app combining three features: 1) Text→Presentation: Take text/outline and generate Markdown slides rendered with themes; export PDF/PNG. 2) Diagram/Flowchart Editor: Drag/drop nodes (Start/Process/Decision/End), connect with arrows, snap-to-grid, export PNG/SVG, optional auto-layout. 3) Infographic/Poster Editor: Canvas with text/shapes/icons/image upload, 10–20 starter templates, export PNG/PDF. Platform: - Frontend: Next.js + React + Tailwind - Editors: Marp/reveal.js (slides), React Flow or Reaflow (+ Mermaid optional), Konva.js or Fabric.js - Backend: Supabase (Auth, Postgres, Storage) - Payments: Stripe subscriptions (Free vs Pro limits) - Hosting: Vercel Deliverables: - Project create/edit/save for all 3 editors - PNG/PDF export for all - 5+ slide themes, 10+ infographic templates - Public read-only share links - Stripe integration with plan limits - Admin screen (users, plans, usage) - Clean, well-commented code, README, .env.example, basic API tests - IP transfer to me, no copyleft licenses Nice-to-have (quote separately): - AI assist (OpenAI): generate slide outline and starter Mermaid diagram What to send in your bid: - 3 links to relevant live apps (diagram/canvas/editors/Stripe) - GitHub repo links showing React Flow/Konva/Fabric experience - Estimated timeline (weeks) + fixed price - Confirmation you can do a short paid trial task Milestones (fixed): 1) Wireframes + tech setup (Next.js, Supabase, Stripe sandbox) — 15% 2) Slides editor (themes, export) — 20% 3) Diagram editor (nodes/edges, export) — 20% 4) Infographic editor (templates, export) — 20% 5) Auth + Stripe plans + quotas + share links — 15% 6) QA, bugfix, docs, deploy to Vercel — 10% Notes: - Communication via Freelancer chat + weekly demo - Code in GitHub (you push daily), CI basic checks - Must meet acceptance criteria to release milestones