I want to replace the patchwork of spreadsheets and Business Manager screens with a single, web-based Facebook ad manager that I fully control. The tool must let me create and edit campaigns, ad sets, and creatives in one streamlined workflow, then surface performance data in near-real time so I can act on it quickly. Audience targeting and segmentation should be baked in from the start—think intuitive filters, saved audiences, and look-alike generation pulled straight from the Facebook Marketing API. While my immediate need is to run a single brand’s ads, I may expand to additional Facebook accounts later, so please architect the codebase with that possibility in mind and be ready to advise on the implications for permissions, token handling, and rate limits. Acceptance criteria • Secure sign-in and Facebook OAuth flow • Full CRUD for campaigns, ad sets, ads, and audiences • Dashboard with KPIs (spend, CPA, ROAS, CTR, impressions) and date/level filters • Exportable CSV or Google Sheets sync for reports • Clear setup documentation plus a short hand-off call once everything is deployed Preferred stack is React (or similar) for the front end and Node, Python, or PHP for the back end—use what you know best as long as it stays modular and well-documented.