I got this to run using Guix. First I extracted the tarball to a directory and entered it in the terminal. Then I ran:
guix environment -l guix.scm -- tsukundere -L $PWD -A $PWD -m dystopia
BTW, the tarball is a "tar bomb", as in the files aren't all contained in a directory, which caused me to pollute the directory I extracted it to.
As for the game, lots of anime tropes, fourth wall breaking, overtly anti-capitalist themes, and Genshin Impact references! The script is very funny! I wish there was more of a plot, but the presentation of everything is very slick. Tsukundere is coming along nicely!