To use chunkwm, you have to go to considerably more trouble than you will be used to if you are coming from the older (but very nice) kwm version 3. If you are coming from kwm 4, you are probably right at home.
Note: these instructions have now been added to the chunkwm wiki: https://github.com/koekeishiya/chunkwm/wiki/Instructions:-chunkwm-with-(s)khd-on-macOS-High-Sierra
chunkwm is heavily modularised. It consists of a daemon, chunkwm, and a command-line control tool, chunkc. Neither will directly interact with the user: you need to use khd for that. chunkc is used to send commands to chunkwm, which is listening on a socket (and chunkc sends to that socket).