macOS installation instructions seem incomplete?

[Synchro]

Following these instructions, I end up with Exakat without any support for neo4j/gremlin/tinkergraph, even though all the instructions are apparently successful. exakat doctor says:

exakat :
    executable           : /opt/homebrew/bin/exakat
    version              : 2.6.2
    build                : 1494
    exakat.ini           : /opt/homebrew/bin/config/exakat.ini
    graphdb              : nogremlin
    reports              :
    rulesets             : CompatibilityPHP74,
                           CompatibilityPHP80,
                           CompatibilityPHP81,
                           Analyze,
                           Appinfo
    extra rulesets       :
    ignored rules        :
    tokenslimit          : 1 000 000 000
    stubs                :

PHP :
    binary               : 8.2.16
    memory_limit         : 256M
    short_open_tags      : Off
    ext/curl             : Yes
    ext/hash             : Yes
    ext/phar             : Yes
    ext/sqlite3          : Yes
    ext/tokenizer        : Yes
    ext/mbstring         : Yes
    ext/json             : Yes
    ext/xmlwriter        : Yes
    ext/openssl          : Yes
    xdebug.max_nesting_l : 512 (Must be -1 or more than 1000)
    pcre.jit             : Off (Must be off on PHP 7.3 and OSX)

java :
    installed            : Yes
    type                 : OpenJDK Runtime Environment Zulu21.32+17-CA (build 21.0.2+13-LTS)
    version              : openjdk
    $JAVA_HOME           : <none>
    $JAVA_OPTIONS        :

tinkergraph :
    configured           : No tinkergraph configured in config/exakat.ini.

gsneo4j :
    configured           : No gsneo4jv3_folder configured in config/exakat.ini.

nogremlin :
    installed            : Always

loader :
    mode                 : Serial

project :
    name                 :
    url                  :
    phpversion           : 82
    reports              : ""
    rulesets             : CompatibilityPHP74, CompatibilityPHP80, CompatibilityPHP81, Analyze, Appinfo
    included dirs        :
    ignored dirs         : /assets, /cache, /css, /data, /doc, /docker, /docs, /example, /examples, /images, /js, /lang, /spec, /sql, /test, /tests, /tmp, /version, /var
    ignored rules        :
    file extensions      : php, php3, inc, tpl, phtml, tmpl, phps, ctp, module

folders :
    projects folder      : Yes

php82 :
    configured           : Yes (/Users/marcus/Library/Application Support/Herd/bin/php82)
    actual version       : 8.2.16

I assume I need to edit the Exakat config file to tell it about which components to use – but I don't know what values to use. Are these instructions incomplete?

I also don't understand projects; If I want to run Exakat on an existing project, can I not just run it within the project folder and have it save output in a local folder? Do I need to also define an Exakat project folder somewhere else?