I went to the
Kodachi homepage that DistroWatch listed, searched the page for "tails" and it shows a comparison list.
Whonix is another similar OS, and their wiki contains a
comparison of anonymity-focused OSes, which includes Whonix and Tails, but does not currently include Kodachi. Nor is Kodachi in the list of
omitted OSes - that itself would tell me, if I were looking for such an OS, to be wary of using Kodachi at least until it is more established.
Kodachi is developed by an individual who only accepts contact through the proprietary Discord software - a pretty big red flag.
(Tails has a team of people and provides an email address and an XMPP-powered chat channel.)