Overhead matters
Kos is zero-overhead and minimalist web framework based on Vert.x. It provides developers with an opinionated, but fully customizable, development API, allowing them to focus on what matter the most: the product itself. After all, why should we choose between performance and productivity when you can choose both?
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Performance
Kos provides a thin layer of fundamental web application features, without obscuring Vert.x features that you know and love. It leverages traditional annotation-driven design that is so common in the JVM, but empowers reactive programming provided by Vert.x.
Flexible
Conventions helps developers to put effort on what matter: business. Kos will simplify things whenever possible, but developers are always able to change its default behaviours.
Fast
Simplifying repetitive routines should never hurt the software performance. We value compilation-time optimizations over reflection or runtime proxies.