Practical insights and guides on PHP/Symfony, React/Next.js, legacy modernization, and software architecture, drawn from 18+ years of building web applications for European businesses.
Bun can run Next.js in production now, and the startup and install numbers are real. Whether that matters for your SaaS depends on where the time goes. Bun vs Node.js for Next.js: real workloads, compatibility gaps, deployment changes, and migration cost.
Read moreThe React 19 compiler automates the memoization you used to hand-write with useMemo and useCallback. Here is what it really changes, where it gives up, how to turn it on in Next.js and Vite, and how to roll it out on a large codebase without a surprise.
Read morePrompt engineering, RAG, and fine-tuning solve different problems. A practical framework for choosing between them, with cost comparisons and the build vs managed service question for each.
Read moreEstimates fail for predictable reasons: unknown unknowns, the planning fallacy, and a habit of confusing effort with duration. Here are the techniques we use to estimate client projects with honest uncertainty ranges, and the contract shapes that keep a bad estimate from sinking the relationship.
Read moreSymfony ships three caching layers that most teams treat as one. Here is a mental model for HttpCache, the Cache contracts, and the Doctrine result cache, plus a Redis setup that survives a multi-tenant dashboard without stampedes or stale data.
Read moreFitness functions turn architecture agreements into CI checks that fail the build when a boundary breaks. Five concrete examples for Symfony and Next.js teams, with code.
Read moreThe complete production setup for Coolify v4 on Hetzner Cloud: server sizing, locking down the dashboard, TLS, S3 backups to Object Storage, Grafana Cloud monitoring, GitHub auto deploys, and the config differences between Symfony and Next.js apps.
Read moreSymfony Flex writes config files, registers bundles, and edits your .env every time you install a package. Here is how recipes work under the hood, what composer recipes:update actually changes, and how to upgrade without losing your customizations.
Read moreWhat EXIST actually pays, how KfW StartGeld works, whether a SaaS counts as deep tech for the EIC Accelerator, and the state aid ledger every founder should keep from day one.
Read moreToken bucket or sliding window log? How the two rate limiting algorithms differ in practice, the Redis Lua scripts that make them atomic, and the Symfony wiring around them.
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