The toolkit was historically available via the MoonSols website and later the Comae Technologies website. Because open-source forensics tools often move repositories, it is currently best found on under the ComaeIO or MoonSols organizations.
If you are just getting started, the best way to explore these tools is through the Magnet Forensics Free Tools page, w comae toolkit
That is not just a marginal gain; that is a paradigm shift for live IR. The toolkit was historically available via the MoonSols