EN

• Agent architecture in production
• Migrating WordPress to S3 + CloudFront with Claude
• What an LLM really is
• Agentic Patterns and the many faces of RAG
• AI SDLC: best practices for developing with AI

How this site is built

It’s a static site: no server, database or admin panel to maintain or patch.

Architecture of zerogap.uk: GitHub, GitHub Actions with OIDC, S3, CloudFront and AWS CDK

  • Content — every post is a Markdown file in a private GitHub repo. Astro turns it into HTML at build time, in five languages, and Pagefind builds the search index, which runs in the browser.
  • Hosting — the files live in a private S3 bucket that only CloudFront can read (Origin Access Control). A CloudFront Function resolves the URLs and redirects the old WordPress ones, and every response carries security headers such as HSTS and CSP.
  • Infrastructure as code — the certificates, buckets, CloudFront, the deploy role and a cost alarm are defined in TypeScript with AWS CDK and versioned in Git.
  • Deploy — every push to main publishes to a staging environment; production only changes through a manual promotion in GitHub Actions. The pipeline authenticates to AWS via OIDC with credentials that last one hour: there are no stored access keys, and the role can only write to the site’s bucket and invalidate its cache.

How I migrated the site from WordPress is covered in this post.