itch.io

Most devs either offer a "buy once and always get the newest version" deal or only allow you to pay on patreon.  There are definitely games where I purchased the paid version on itch years ago and can still access the current paid version.

Investigate what happened to the old headmaster.  That quest line eventually lets you convince ruth.

I'm seeing this issue as well -- paid $10 a year ago, and while I can find the "you paid for this, so here are your downloads" page, it only has the free versions.  It really looks like there's something misconfigured on your end.

Interesting.  The first one opened the game, but double clicking on the .app still didn't work.  The second fixed things entirely.

The odd thing is that most renpy apps work fine without this.  Not sure why yours and a couple others are unhappy, while the rest work.

I'm also on M1, which might affect things.

Worth noting that the mac packaging doesn't seem to work (at least for me).  It looks like you are trying to move the actual "game" folder with the game data out of the .app, but it doesn't work on my machine.  When I copy a working renpy app and paste in your game folder in the right spot, everything works, but it does appear to need that level of surgery to run.

Fun game once I got it to run, though.

If you just want chapter 6, download them both, right click and hit "show package contents" on both, drag the contents folder from 5-6 into 1-4, and then hit "merge" when it says that there are duplicates.