With python3's htag module.
Android's Apk built thru the htagapk recipe
Build the APK using "Actions > Build Apk > Run workflow", the package.zip(apk) is available after 12-to-13 minutes in the resulted process ;-)
- easy access : auto re-open last opened trip
- ability to make fair re-distribution (ability to ponderate "parts" for a payer)
- more readable : ability to choose a color for a Payer
- live view for closing the expenses