Buck vs Capsule: What are the differences?
Buck: A build system developed and used by Facebook. Buck encourages the creation of small, reusable modules consisting of code and resources, and supports a variety of languages on many platforms; Capsule: Dead-Simple Packaging and Deployment for JVM Apps. Packages any JVM application, no matter how complex, as a single, plain executable JAR. A capsule may directly contain all of the application’s dependencies or simply declare some or all of them, to be downloaded when launched.
Buck and Capsule can be primarily classified as "Java Build" tools.
Buck and Capsule are both open source tools. Buck with 6.81K GitHub stars and 1.02K forks on GitHub appears to be more popular than Capsule with 1.13K GitHub stars and 79 GitHub forks.