Production lessons
The green dashboard lied to us
Every metric was within threshold. The service was down for half the users. Availability and health are not the same thing.
Notes from production
Software is built
in the trade-offs.
Practical thinking about architecture, distributed systems, and the decisions that shape reliable software.
Explore the writingBy Damian Sibiński · Tech Lead Developer
What you will find here
No silver bullets.
No architecture theatre.
Production over theory
Failure modes, recovery paths, and lessons from running systems.
Trade-offs made explicit
The cost of a decision matters as much as its benefits.
Clarity over complexity
Systems should remain understandable as they grow.