Apple restricts PWAs from appearing automatically in the iOS Share Sheet, but you can enable 1-tap sharing on your iPhone/iPad using an iOS Shortcut!
How to enable on iPhone:
- Open Shortcuts app on your iPhone.
- Tap + → set name to Upload to FileVault.
- Enable Show in Share Sheet in Shortcut details.
- Add action: Get Contents of URL → set URL to:
https://file.redprivate.fun/share.php
- Method: POST • File key: shared_files