Strip the file names of *.example.json from the .example bits, and configure all the fields as you wish.
Although, I doubt this can be useful for anyone other than Meta Construct as-is. It will probably work with some tuning but you're better off forking the project to make your own changes and additions.
Of course, you'll need the gmod-metaconcord add-on installed on your server to allow for communication with this service.
# Install dependencies
$ yarn
# WSL or Linux
$ ./schema_gen.sh
# Go wacky
$ yarn build
$ yarn start# Install dependencies
$ yarn
# WSL or Linux
$ ./schema_gen.sh
# Go wacky
$ yarn dev