How I learned Flutter to create an iOS app for usage during concerts with my band, using TDD and Acceptance Testing.

How I used React with TypeScript and Firebase to build my own client management system, using TDD and Acceptance Testing.

How I helped Versatile remove fear of change in a key subsystem by introducing TDD and refactoring to Hexagonal Architecture.

Hexagonal Architecture allows us to separate pure logic from external constraints and enables writing fast, integrative acceptance tests.