I'm doing Real Work (TM) today, but I realized I was one commit away from adding the console version to Racktris's master branch. So that bit's merged!
Get it while it's hot:
$ git clone https://gitlab.com/dustyweb/racktris.git
$ cd racktris
$ racket racktris.rkt -c
The -c is for --console! :)
More on Racktris plus the liveblog thread from the micro-gamejam: https://octodon.social/@cwebber/100552765855535486