Using Claude Code to Build a Drupal Site with Custom Twig Templates

A developer shared their experience using Claude Code to build a Drupal website with a custom approach they describe as "headless-ish HTML." They used Claude to create Twig files with raw HTML, preferring this method for greater control over the output.
Technical Approach
The developer had Claude craft Twig files that incorporate raw HTML code while still utilizing Drupal core functions like drupal_view and drupal_block. CSS was mixed directly into these templates for styling. The site structure was organized with many individual Twig files in the themes/custom/THEME/ directory, which the developer compared to their typical PHP application development methods.
Development Workflow
They used a local ddev environment extensively, noting that Claude was able to run ddev drush and other commands directly from the terminal. This setup facilitated configuration of views, taxonomies, content types, and site structures.
The process followed these steps:
- Start with Claude creating the HTML/CSS site first to make changes easier and faster
- Once the design was finalized, have Claude take that and create the Drupal site starting with a sub-theme
- Work with Claude to tackle specific areas rather than requesting broad fixes (e.g., "Let's review the XYZ content type and make sure it matches the HTML templates" instead of "Claude fix all the content types")
Practical Details
The developer left Twig debugging enabled on the Drupal website to see which Twig files were being used. They acknowledged that while some organization would be beneficial, the current structure served as a good starting point for a simple content site.
This approach allowed them to build a Drupal site that wasn't constructed "the Drupal way" but matched their preferred development patterns, making the process smoother than traditional Drupal development.
📖 Read the full source: r/ClaudeAI
👀 See Also

Daily 3.5-Hour Voice + Claude Workflow: Dictate Specs While Walking, Build with Claude Code
A developer walks 3 dogs 12+ times daily (3.5 hours) and uses voice + Claude to brainstorm, research, and produce spec.md files. Then Claude Code builds from those specs.

Parallel Execution for Claude AI Agents Achieved with Distributed System Approach
A developer successfully ran 41 Claude AI agents in parallel with zero conflicts and 58% time savings by treating agents as a distributed system with hard-scoped responsibilities rather than a group chat.

Building self-healing AI agents for production systems
A team running an AI-operated store built self-healing infrastructure where agents detect failures, diagnose root causes, and recover autonomously without human intervention, particularly addressing 3am crashes.

Local Qwen3-0.6B INT8 as Embedding Backbone for AI Memory System
A developer implemented Qwen3-0.6B quantized to INT8 via ONNX Runtime as a local embedding model for an AI memory lifecycle system, achieving 12ms batch inference on CPU with 1024-dimensional vectors and cosine similarity thresholds of 0.75 for semantic relatedness.