This podcast episode explores the world of modern JavaScript toolchains and the ongoing debate surrounding their necessity. The speakers discuss the benefits of adopting new tools, including improved speed and developer experience, while also acknowledging the proliferation of tools and questioning their true necessity. They delve into various types of tools, such as linters, compilers, formatters, and bundlers, highlighting their functionalities and the importance of using them wisely. The episode also introduces Biome, a comprehensive tool that combines code formatting, linting, and macros, and discusses other noteworthy tools like O-X-C, Oxlinter, and Rolldown. The emergence of new dev tools written in languages other than JavaScript is also examined, suggesting alternative options for high-performance tool development.