When I first moved from traditional software engineering into travel technology, I was surprised by how fragmented the landscape felt. Unlike other domains where open-source ecosystems thrive—think data science with Python's pandas or web development with React—travel tech seemed locked behind proprietary APIs and vendor-specific platforms. But over the years, I've discovered a vibrant collection of open-source tools that have fundamentally changed how I approach problems in this space. These tools aren't just free alternatives to commercial products. They represent a shift toward transparency, interoperability, and community-driven innovation. For anyone building systems that move people from point A to point B, understanding this ecosystem isn't optional—it's foundational. Why Open Source Matters in Travel Technology I've spent enough time wrestling with opaque APIs and undocumented edge cases to appreciate what open source brings to the table.…