The Chipflasher Project offers different versions, most notably of them is the one of the tip of branch “master” and that of tag “board-edition-1”.
In May 2018, version “board-edition-1” had been certified to respect computer users’ freedom by the Free Software Foundation (FSF). Checkout its page: Zerocat Chipflasher “board-edition-1”
For your convenience, its documentation has been pre-built and is available for browsing: Zerocat Chipflasher “board-edition-1” Documentation
First ten devices – shipped in signed packages – are available for purchase since May 2018: Zerocat Shop
Note that recent firmware versions on branch “master” still apply for the PCB of “board-edition-1”, so please feel free to upgrade your device as long as this note is provided.
For your convenience, the documentation has been pre-built and is available for browsing: Zerocat Chipflasher “master” Documentation