You can publish your game on the official Lean Game Server in a few simple steps.
First, you need your game in a public Github repository and make sure the github action has run. You can check this by spotting the green checkmark on the start page, or by looking at the "Actions" tab.
You call the URL that's listed under "What's Next?" in the latest action run. Explicitly you call the URL of the form
adam.math.hhu.de/import/trigger/{USER}/{REPOSITORY}
where {USER}
and {REPOSITORY}
are replaced with the github user and repository name.
You should see a white screen which shows import updates and eventually reports "Done."
Now you can immediately play the game at adam.math.hhu.de/#/g/{USER}/{REPOSITORY}
!
Adding games to the main page happens manually by the server maintainers. Tell us if you want us to add a tile for your game!
For example, you can contact Jon on Zulip. Or via Email.