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Most Bugs Start Before Coding
The bug wasn’t in the code
May 11
•
Valentina Jemuović
7
1
2
Clean Architecture: Do NOT Inject Loggers Everywhere
Code Example
May 7
•
Valentina Jemuović
5
6
2
I Thought I Was a Developer. I Was Just Retesting.
Every change meant retesting
May 5
•
Valentina Jemuović
9
4
3
April 2026
Stop Duplicating Acceptance Tests
How to avoid double maintenance costs
Apr 30
•
Valentina Jemuović
6
2
2
Hexagonal Architecture: Your Driven Ports Are Leaking Infrastructure
Clean Interfaces, Leaky Abstractions. Your driven ports look clean — but they're leaking infrastructure into your domain. Your domain is coupled to…
Apr 23
•
Valentina Jemuović
8
2
3
Unit Tests are NOT enough!
You have 100% coverage. All the unit tests are passing. But then, in production, a horrible bug happened.
Apr 21
•
Valentina Jemuović
8
4
3
DDD + Clean Architecture: Where to Put Validation Logic
Should validation go in the API, application layer, or domain?
Apr 16
•
Valentina Jemuović
12
6
3
Hexagonal Architecture: Ports Are NOT Just Interfaces
Code Example
Apr 9
•
Valentina Jemuović
8
3
4
TDD: If Your Test Never Fails, It’s Broken
The RED step
Apr 7
•
Valentina Jemuović
11
2
3
Clean Architecture: DTOs Are NOT Just Wrappers
Code Example
Apr 3
•
Valentina Jemuović
9
4
3
Clean Code Is NOT Optional
It’s tempting to write code fast...
Apr 1
•
Valentina Jemuović
10
2
3
March 2026
TDD & ATDD
In Microservice Architecture
Mar 27
•
Valentina Jemuović
6
2
3
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