Overview I need an MVP web platform that helps men pursue personal growth through guided courses, AI-powered conversations, and light gamification. Bubble.io is preferred for launch speed and iteration, but I’m open to another no-/low-code stack if you can clearly show a smoother path to scale and lower total cost of ownership. Scope Platform: Web-only (responsive for desktop & mobile browsers). Auth: Email + password (signup, email verification, reset), basic profile management. AI: OpenAI GPT integration for in-app chatbot and contextual journaling prompts. Content: Course/Journey area serving video, audio, and text modules with progress tracking. Engagement: Daily tasks, streaks, gentle rewards; basic notifications (email is fine for MVP). i18n: Bilingual UI (EN/PT) and a simple way for me to add more languages later. UI/UX: Clean, modern look (Headspace/Mindvalley vibe) designed directly in Bubble or imported from Figma. Hosting for media: Propose Mux/Vimeo/S3 (or Bubble-native) for video delivery with secure access. Non-Functional Requirements Performance: P95 chatbot round-trip ≤ 4 s with cached context (network included). Scale (MVP target): Handle 200 concurrent users / 2k DAU without timeouts; outline the path to 1k concurrent. Security & Privacy: Private journaling; role-based access (user/admin); SSL/TLS; basic audit of admin actions. Data Ownership: I can export users, journal entries, and course progress to CSV/JSON at any time. Observability: Basic analytics (Mixpanel/GA4) and error logging (e.g., LogSnag/Sentry-like). Costs: Provide monthly cost estimates at 1k / 5k / 20k MAU (Bubble plan, plugins, OpenAI tokens, media hosting). Acceptance Criteria New user can sign up, verify email, log in, and edit profile. Chatbot returns relevant GPT responses with P95 ≤ 4 s; show tokens used per session in logs. Admin dashboard: create/edit courses, upload media, reorder modules, and publish/unpublish. Users see completed tasks, streak count, and journal history stored securely; can export their own journal. UI renders correctly on latest Chrome, Safari, Edge at common mobile/desktop breakpoints. Language toggle (EN/PT) works on every screen; copy is stored in a way I can edit without a developer. Basic analytics dashboard visible (signups, daily active, lesson completion). Timeline & Handoff Target: 6–8 weeks to a testable MVP. Please include: Milestones (week-by-week) and what is delivered at each step. Tech choices (Bubble plugins, external APIs, database/media hosting). Estimated ongoing monthly costs and any usage limits. Short loom/video walkthrough at handoff + written “how to manage” doc. Nice to Have (not mandatory for MVP) Social login (Google/Apple), basic PWA installability, light gamification badges, content drip scheduling, and simple email notifications. What to Send 3–5 relevant portfolio links (Bubble/Xano/Retool/Next+Supabase etc.). Your stack recommendation (Bubble vs alternative) with a one-paragraph comparison. Fixed-fee or hours estimate for MVP + optional stretch features. Any suggestions to improve engagement or lower costs. Scope must cover ALL items listed. If your proposed budget is above this range, please explain why (added features, better scalability, long-term cost savings).