I built this and one other (black and red) with a different thumb cluster in 2021. Not sure if Dactyl Manuform is still "hip" but this has been my daily driver for two years now and I don't really want to type on anything else!
Thank you, sir - I did print it, and thank you. I had to buy, tune, and learn how to 3d print as a prereq for the project, and since then have printed a lot of stuff... but the DM shells are by far the longest prints.