I was trying out the custom app feature and managed to get in infinite redirect loops.
Since I can no longer edit my app through the UI, how can I delete it from the disk to fix this?
We indeed do not check/warn/prevent users of doing stuff like this. Low-code apps are, just like dashboards, completely file-based, so we can still manipulate the app through its files.
Everything regarding an app is located in the folder Skyline DataMiner/Applications/[app ID (guid from url)]
You can delete the folder if you want to get rid of the app, or change the versions inside its ./App.config.json to manually restore it to a working version. Just change the PublicVersion and/or the DraftVersion in that file to the one that corresponds with the version in a version_x folder that is still ok.
That fixed it, thanks!