video1.0<iframe src="https://www.loom.com/embed/bf9eaaeeb7594629b52cb2d3880c21a4" frameborder="0" width="1280" height="960" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>9601280Loomhttps://www.loom.com9601280https://cdn.loom.com/sessions/thumbnails/bf9eaaeeb7594629b52cb2d3880c21a4-da10022d46544cc8.gif254.456I built an end to end app architecture with authentication, schema validation, logging, and a protected frontend. If the user is authenticated, my middleware attaches the user to the request, and I validate inputs with Zod, returning validation errors when invalid. For auth I use an off the shelf library with HTTP only session cookies and an optional token mode for web and mobile, plus simple tests. For image upload I use multer, and for data access I use Prisma with generated clients and enums on Postgres. I did not request any action from viewers.