If your target system is Linux, you could install the wazuh-manager package directly on that system and it would locally collect logs and analyze them. The Wazuh manager serves as an agent unto itself. If you want full HIDS functionality, including the Wazuh Kibana app just for/on that one host, then follow the installation instructions for setting up the Wazuh single-host architecture. See:
If your target system is Windows, you will have to have a separate Linux platform running the Wazuh manager since you can only install Wazuh agent on Windows platforms. The Wazuh agent is useless without a manager to connect to.
Kevin