Template project for GitBucket plugin
Run ./sbt.sh package (use sbt.bat instead on Windows) and copy generated /target/scala-2.12/gitbucket-helloworld-plugin_2.12-1.0.0.jar to ~/.gitbucket/plugins/ (If the directory does not exist, create it by hand before copying the jar).
Then start GitBucket and access to http://localhost:8080/helloworld in your web browser, you will see Hello World! response.