I understand and it's perfectly fine, I will explain. The extras not normally in pico8 are features like:
1. "save states"
2. a debugger to help developer investigate issues with their games.
3. a script engine to record and replay the inputs so developers ( mostly ) can replay a specific scenario and investigate easier an issue or a mechanic of their game.
For the moment nothing more. So as you seen there is nothing actually required to play the games and most of the people will be fine with the free features. Anyone interested in these features or in supporting the app's development is welcome to make a purchase.
The authors are credited having their name just below the title and there is a link to the BBS post so players can reach them and follow their work.
Various developers are onboard already, but anyway this is not a one way decision, even if you say yes now you can always change idea and ask me to remove it. The only aspect I must be clear is that I would not be able to remove it from the past installation on the users devices, if they don't update the app at least. Only future installation would not have anymore the game. I can send you a couple of videos if you want to have a look before deciding. I can't find your bluesky handle in your profile, but if you want to continue this discussion in private you can reach me on bluesky at https://bsky.app/profile/macs.eurosky.social . Thanks a lot dor considering this!