I'm impressed with how far Tsukundere has come! Very cool! The presentation is very slick, I just wish there was more story to play. I replayed several times to see if one of the branches had more to it, but didn't find anything no matter which of Eri's dialog options I chose.

I somehow found myself in a state that when I start a new game after reaching the end once the screen is just black except for the text boxes and dialog options. Then the credits sequence plays without issue, as does the title screen.

For anyone else trying to play this, here's what worked for me (requires GNU Guix):

cd the-directory-where-you-extracted-the-game
guix environment -l guix.scm
tsukundere run -L . -A . -m dystopia