As one of the contributors, I'm always happy to see interest and people using it.

Keeper is a really interesting challenge and we're really open to any kind of feedback and thoughts.

If you tried it out and have some feedback for it, I encourage you to create an issue (https://github.com/ClickHouse/ClickHouse), ask on our Slack, ping me directly on Slack... (just don't call me on my phone)

And don't forget that it's completely open-source like ClickHouse so contributors are more than welcome.