---
id: themelio-web
title: Themelio Web
hoverText: The main Next.js application serving the Themelio frontend and API routes.
---

Themelio Web is the primary application service in the Themelio stack. Built with Next.js 15 and React 19, it serves both the user-facing interface and the API layer. It handles authentication (NextAuth v5), session management (Valkey), and proxies authenticated requests to GitLab using middleware-injected impersonation tokens. Located at `services/web` in the monorepo.