01
Make responsibilities visible
A system becomes harder to change when domain logic, infrastructure and interface concerns are mixed together. Clear boundaries give each part a reason to exist.
That does not automatically mean more layers. It means you can explain where a decision belongs.
02
Design for change, not prediction
Nobody knows every future feature. You can make sure new information, roles or integrations do not immediately break open the whole codebase.
Start with the core workflow and choose technology the team can understand, test and maintain.
03
Technical choices are product choices
A serverless event flow, relational database or monorepo is never only a technical preference. Each choice affects speed, cost, failure handling and how a team collaborates.
The best architecture is the one that helps the product and the people behind it move forward.
A good technical choice makes the next product decision easier.