Why systems fail to scale
The real bottleneck is rarely traffic. Systems stop scaling when change becomes entangled.
Thinking
Architecture is not just what systems are made of.
It is how organizations decide to change.
I write about distributed systems from the perspective of decisions, trade-offs, people and long-term consequences — and fiction when the system I want to understand is reality itself.
Book · Wiley-IEEE Press · pre-order listings live
Microservices, without the mythology.
A decision-maker’s view of why distributed architectures emerge, when they help, what they cost, and how they reshape governance, teams and risk.
MICROSERVICES FOR DECISION MAKERSStrategy, implementation, and value.
Author Massimiliano RegisPublisher Wiley-IEEE PressISBN-13 9781394434930Format Hardback · 336 pagesPlanned publication 2027
Context & motivationTrade-offsStrategic benefitsTeams & governanceReliability & securityIntegration & migrationAI · serverless · edgeReal use cases
The central idea is simple: microservices do not eliminate complexity. They redistribute it. The important question is whether your organization is prepared to govern where that complexity moves.
Book details & pre-order →A recurring idea
“When an organization chooses an architecture, it is deciding how to distribute complexity, autonomy and risk over time.”
Essays
What I think about systems.
Short arguments that connect engineering decisions to the way teams and businesses actually behave.
Conway’s Law in real systems
Architecture mirrors communication, decision rights and team boundaries whether we plan for it or not.
Architecture is not a technical decision
Containers and APIs are implementation details. The deeper choice is where responsibility and risk will live.
Literary work
La Scatola del Tè
The Tea Box
A novel about free will, determinism, biology and the possibility that mathematics is not merely a way to describe reality, but the structure beneath it.
The story moves between science, friendship, memory and recurring patterns — using narrative to ask a systems question at human scale: if everything follows a structure, where does freedom begin?
Thinking in public