Metroflip is a multi-protocol metro card reader app for the Flipper Zero, inspired by the Metrodroid project. It enables the parsing and analysis of metro cards from transit systems around the world, providing a proof-of-concept for exploring transit card data in a portable format.
Unicode normalization forms (NFC, NFD, NFKC, NFKD). A pure-Python implementation independent of Python’s core Unicode database, supporting version 17.0 of the Unicode Standard.