Tympan codec daughter board


I am very interested in using the codec daughter board (as described on GitHub) to use as a substitute for the Teensy Audio board. However I can find no reference to it on the Tympan site. Would someone please let me know the status of this project - the release date is stated as this month (March 2019).
I would be very happy to be a pre-release beta tester if you are looking for help (I have extensive hardware/software experience with Teensy).