Tech Stack: Backend: Node.js with Express.js Database: MongoDB with Mongoose ODM Frontend: React.js (for admin panel, if required) Authentication: JSON Web Tokens (JWT) Version Control: Git Deployment: Docker (optional) Precision in User Requirements: Strictly adhere to specified user flow and game rules. Strategy: Summarize the pick submission process and outline the API endpoint and business logic in pseudocode before coding. Strategic Planning with Pseudocode: Begin each feature with detailed pseudocode. Example: Provide pseudocode for the weekly scoring process, detailing steps from game result input to entry status updates. Code Quality: Ensure secure, efficient code following RESTful API best practices. Implement proper error handling and input validation. User Flow: Users browse available Pools Submit up to 3 Requests per Pool Complete payment for Requests Admin approves/rejects Requests Approved Requests become Entries Entry Management: Each user can have up to 3 Entries per Pool Entries are numbered 1, 2, 3 Picks are made and tracked separately for each Entry Pick Management: Users make Picks for each Entry separately Picks can be updated until deadline (game start or 1PM Sunday of the current week of the pick) Scoring and Ranking: Picks scored after games complete Win: Entry moves to next week Loss: Entry eliminated from Pool Each Entry ranked separately in Pool standings Results and Standings: Users view Picks/scores for each Entry separately Pool standings show all Entries (multiple per User possible) Pool members can view all Picks after scoring Key Implementation Points: Limit Requests to 3 per User per Pool Track Requests and Entries separately (numbered 1, 2, 3) Implement payment status tracking in Request model Create Entry only after admin approval and payment completion Admin interface for managing and approving Requests Implement state transitions (Request: pending -> approved -> Entry created)