What we learn on projects: architecture, tools, traps, and what we solved.
Solana is not Ethereum-with-better-TPS. Seven differences that bite every team coming from EVM.
Hydrogen is a big lift vs liquid themes. Here's the revenue tier where it starts paying back, and the migration plan.
Building multi-tenant SaaS on Postgres? RLS is non-negotiable. Here's the playbook we ship.
Five Postgres migration mistakes that burned weeks of our time. Here's the fix for each, and what we now do unconditionally.
An eval that's not in CI is not an eval. Here's the evals-as-code workflow we run on every RAG project.
MNB, NAV, and NAIH all have 2026 obligations that hit Hungarian fintechs · this is the compact calendar of what's due and when.
Gasless UX is a product win. Meta-tx relayers are a security surface. Here's how to ship both safely.
Twelve real checkout experiments from the last 18 months · uplift numbers, segment effects, and which we now ship by default.
Offline-first is a 4-layer problem, not a feature flag. Here's the architecture we ship across Expo + React Native projects.
Four payment gateways, Hungarian-market reality check. Which we pick for which job, with fee math and integration pain points.
Eight invariant patterns worth stealing · we run these on every audit and they keep finding real bugs.
Practical KYC integration for EU + Hungarian fintech · provider comparison, MNB requirements, and the integration mistakes we won't repeat.
Expo is the default for most new apps in 2026. But not all. Here's the frame we use when clients ask.
AI security isn't a checkbox. Here's the nine-point audit we run on every LLM system we ship, plus which bugs turn up most often on systems we didn't build.
Fourteen days from zero to a live AI chatbot your company can actually use. The schedule we follow on every client project, down to what happens on each day.
What NIS2 actually demands from a mid-size SaaS: incident reporting, supply-chain, access control, and 3 basic rules we run ourselves.
Sixteen gas patterns, ranked by real-world impact on the contracts we audited in 2025.
The prompt injection surface is not a single bug · it's five categories, each with a distinct defence. Here's our playbook.
MCP is the most important agent standard of the past year. What it means in practice, where we use it, and why to bet on it in 2026.
From demo to live system: the retrieval, eval, guardrails and cost control we run on every AI project we ship.
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