SiteBuilder Webapp

SiteBuilder is a Symfony web application for AI-assisted content editing. It gives non-engineering teams a normie-friendly way to edit web content projects like marketing pages, while still keeping engineers happy with Git-backed source control and clean PR workflows.

The app lets users connect set up content management projects backed by Git repositories, work inside isolated workspaces, and use chat-based workflows to edit files with an AI agent. It manages workspace lifecycle and review steps so changes can be inspected before merging.

Edit in chat → see the result → changes in a PR.
SiteBuilder is the content management tool that creators love to use and engineering loves to support.
Click to watch demo

Latest updates

• UX Improvements: Conversation History and Reviewer Dashboard
• Smarter Agent Tools: Better Commits and Preview Links
• January 2026 Updates: BYOK, Custom Agents, and More
• Strong Workspace Isolation with Docker Containers
• Deep Dive: Introducing SiteBuilder

What this repository contains

• A Symfony 7.4 backend that manages projects, workspaces, and conversations
• A Stimulus + TypeScript frontend for the editor UI and live interactions
• Dockerized execution for workspaces and background processing
• An opinionated vertical architecture with strict boundaries between features

Tech stack

• PHP 8.4, Symfony 7.4, Doctrine ORM
• MariaDB 12
• TypeScript, Stimulus, Tailwind CSS, AssetMapper
• Docker + Docker Compose
• Mise for tool and task orchestration

Architecture overview

The codebase is organized into verticals (feature modules) under src/. Each vertical has its own layers (Domain, Facade, Infrastructure, Api, Presentation). Cross-vertical communication happens only via Facades and DTOs. Client-side controllers live next to their vertical in src/<Vertical>/Presentation/Resources/assets/controllers/.

For details, see:

• docs/archbook.md
• docs/frontendbook.md
• docs/workspace-isolation.md

Getting started (local development)

Prerequisites

• Docker Desktop
• Mise (https://mise.jdx.dev)
• an unixoid system like Linux, macOS, or Windows Subsytem for Linux

Setup

# 1) Trust mise in this repo
mise trust

# 2) Bootstrap the local environment
mise run setup

mise run setup will:

• Create .env.local with HOST_PROJECT_PATH if missing
• Build and start Docker containers
• Install PHP and frontend dependencies
• Create and migrate the database
• Build frontend assets
• Run quality checks and tests
• Open the app in your browser

Common development tasks

All commands should be run via mise run so they execute inside the app container.

• Quality checks: mise run quality
• PHP tests: mise run tests
• Frontend tests (Vitest): mise run tests:frontend
• Build frontend assets: mise run frontend
• Symfony console: mise run console <command>
• Database shell: mise run db

More tasks are documented in:

• docs/devbook.md
• docs/setupbook.md

Working with feature verticals

• Add new features as new verticals under src/<FeatureName>/.
• Expose cross-vertical behavior through Facade interfaces and DTOs.
• Keep client-side code inside the same vertical to maintain boundaries.

Environment notes

• .env provides defaults; use .env.local for machine-specific overrides.
• HOST_PROJECT_PATH must be set for workspace execution (see setup).

Additional docs

• docs/archbook.md — architecture and boundaries
• docs/devbook.md — recurring dev tasks
• docs/setupbook.md — full setup guide
• docs/frontendbook.md — frontend conventions
• docs/deployment-quickref.md — deployment notes