Looks like the dev team mosly speaks Russian? (Russian is native for me, but I've lived most of my life stateside.)

In Russian, "tvix" is pronounced, roughly, "tweaks" (but with a German - hard "v" - W sound), which to a Russian probably sounds super clever, given what Tvix is (Nix, tweaked).

In English though, how is it pronounced? I'd like to propose "t-f-icks", because it at least sounds like a candy we think the Lebowski nihilists might well have been ordering at a diner.