All contributions are subject to the [Developer Certificate of Origin(DCO)](https://developercertificate.org/). Text of DCO is also included in [DCO.txt](https://github.com/redisson/redisson/blob/master/DCO.txt) file.
Have at least a local copy of built redis, for more information see [tutorial](https://www.digitalocean.com/community/tutorials/how-to-install-and-use-redis).