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Explore the strategic decision-making process behind introducing Scala 3 into a Go-dominated technology stack through this 50-minute conference talk from Scala Days 2025. Discover why a specialized, high-volume real-time streaming pipeline for complex traffic data was built using Scala 3 instead of the company's standard Go language, or other popular alternatives like Python and Java. Learn about the critical factors that influenced this technology choice, including how effective abstraction distinguishes professional software from simple scripts, and examine Scala's multiple mechanisms for achieving robust abstraction. Understand the challenges of schema evolution in data engineering and how Scala's type system provides solutions for this complex problem. Investigate how type classes enable the creation of more generic and thoroughly tested data pipelines. Gain insights into maintaining code quality and accessibility for developers who aren't Scala experts, including strategies for writing maintainable and pragmatic Scala code. Examine the integration challenges of incorporating Scala into Go-focused developer tooling, covering CLI tools, CI/CD pipelines, testing frameworks, and observability systems. Consider the long-term implications for hiring practices and technical debt management when introducing a minority language into an established technology ecosystem. Evaluate whether this technology decision would be repeated given the same circumstances and constraints.
