Refactoring a Symfony application with Clean Architecture and DDD
How I moved a growing Symfony platform from technical folders to bounded contexts, inward dependencies, explicit ports, and architecture checks with Deptrac.
Read
Engineering notes
Blog
Practical notes on software engineering, backend systems, frontend architecture, deployments, and applied research.
July 24, 2026
Building billing infrastructure with FlexPay and Symfony
How to build a durable payment workflow around FlexPay using Orders, Payment Transactions, signed webhooks, idempotent fulfillment, and a migration path from a legacy billing model.
Read
July 23, 2026
Modeling business rules with domain exceptions in Symfony
Using named domain exceptions to express rejected business rules, roll back commands, cross Symfony Messenger safely, produce RFC 9457 problem responses, and separate expected failures from real incidents.
Read
July 23, 2026
Making system time an explicit dependency in Symfony
Why reading the system clock inside business logic creates nondeterministic behavior, and how an explicit Clock port makes expiry, validity, scheduling, persistence, and time-sensitive tests predictable.
Read
July 23, 2026
Testing DDD applications with Behat and in-memory adapters
A practical testing architecture for combining fast domain tests, executable Behat application specifications, in-memory ports, deterministic time, real Symfony boundaries, and focused infrastructure tests.
Read
July 22, 2026
A type-safe data-fetching layer with TanStack Query, Zod, and a BFF
A practical frontend architecture for sharing API contracts, validating responses, fetching during SSR, caching in React, forwarding authentication through a BFF, and keeping mutations synchronized with Symfony.
Read
July 21, 2026
End-to-end authentication with Symfony, JWT, refresh tokens, and a BFF
A complete authentication flow from a type-safe login form to Symfony Security, rotating refresh tokens, server-side web sessions, protected API requests, logout, recovery, and federated login.
Read
July 21, 2026
Fetching Symfony read models with CQRS and Doctrine DBAL
Using CQRS, Doctrine DBAL, and application-owned read models to fetch exactly the data an interface needs without hydrating ORM entities.
Read
July 21, 2026
Type-safe value objects with Symfony and PostgreSQL JSONB
Modeling structured domain values in PHP, persisting them as PostgreSQL JSONB through custom Doctrine types, and validating the same contract in TypeScript with Zod.
Read
December 4, 2025
Building a consistent React data-fetching layer with TanStack Query
A React data-fetching pattern using TanStack Query, custom hooks, and a small REST API DSL.
Read
November 17, 2025
Replacing OFFSET with keyset pagination in PostgreSQL and Next.js
A migration from offset pagination to keyset pagination with PostgreSQL, Drizzle, tRPC, and Next.js 16.
Read
November 11, 2025
Sharing shadcn/ui in a Next.js 16 monorepo with Bun and Turborepo
A shared UI library setup for a Bun and Turborepo monorepo using Next.js 16, React 19, Tailwind CSS v4, and shadcn/ui.
Read