Tried unzipping and re-zipping the file and somehow that worked. This is looking really promising!
yeah, it’s really weird. If you find something to fix that please let me know!
This worked for me too. I unzipped and re-compressed on my iPhone and was able to then upload successfully :)
Unzipping and re-zipping allowed it to get by the online sideloading, but nothing happens when I try to install it manually on the playdate. It'll say it installs, but I can back out and check again and it will go back to showing as uninstalled.
I found what’s causing the issue, working on a fix