@b0rk@social.jvns.ca counting experiments with MkLinux [1] on a PowerMac 8200/120 as 1990s… then Mac OS X Public Beta [2], although technically none of them were considered Unices at the time… [1]: https://en.wikipedia.org/wiki/MkLinux [2]: https://en.wikipedia.org/wiki/Mac_OS_X_Public_Beta