I intend to install Netmaker client on OPNsense, an open source router and firewall platform built using FreeBSD. My appliance is running Atom D525, that is a X64 CPU, so I used this image amd64. Question: Is netclient-freebsd (https://github.com/gravitl/netmaker/releases/download/v0.14.1/netclient-freebsd) the correct installation package for this platform? And will this package install binary, config, etc.?

On freebsd, executing the join command will install and start the daemon, create config files in/etc/netclient and log file in /var/log

This means, I download the binary from git and put it in /usr/sbin. After this I execute the join command. Then I stop the service, modify the config files in /etc/netclient, and start the service again.

why would you need to modify any of the configuration

I assumed that I would enter server information in config files. However I didn't consider that I enter server information with join command. Unfortunately I didn't complete server installation, yet. Therefore I cannot continue with client setup.