Expensify

// Build: internal expense capture (Expensify replacement) # Paste into Cursor or Claude Code in an empty repo. Build an internal expense tool covering the part of Expensify we use: receipt capture + OCR, report assembly, approvals, and an accounting export. Keep the accounting system and any card program as-is. Stack: Next.js + Postgres (Drizzle) + S3 + Claude (vision) + Slack. Data model: - receipts(id, user_id, s3_key, merchant, date, total, currency, tax, category, reimbursable, policy_flags jsonb, status) - policy(categories[], limits jsonb, receipt_rules jsonb) Build, in order: 1. Upload a receipt photo to S3. 2. Extract fields with Claude vision: """ From one receipt image + the policy (categories, per-category limits, receipt rules), return JSON { merchant, date(YYYY-MM-DD), total, currency, tax, category(from policy only, else "uncategorised"), reimbursable(bool), policy_flags[] }. Never approve; flag only. """ 3. Manager approval in Slack (approve/deny buttons). 4. Nightly export of approved lines to the accounting system (CSV/API). Skip: the card program, travel booking, bill pay, chat. Done when: snap a receipt, fields fill, a manager approves, and it lands in the accounting export.