Thank you for the support! I really appreciate it!
I will almost certainly continue making CK in Ren'py, in which case Android builds will continue to be published as usual. Steam doesn't have a mobile games distribution channel, so I'll have to figure something out, but I will do my very best not to abandon Android players!
Of course, if enough people migrate to SubscribeStar then I can just carry on there as normal and all of this becomes moot :)