Do you have a downloadable version?
Not sure why you are not seeing download links as there have been downloads of the game recently. You can use this download key if you want to download the game:
https://varlance.itch.io/school-is-hellish/download/fNkqf4eHUssxu8T7UjgUxfwmfO48lMjIu3gH7o77