For identifier security you don't need the entire Unicode DB. Only rust or glibc would do that, nobody else. You need the XID_Start/Continue list of bits, a sin

For identifier security you don't need the entire Unicode DB. Only rust or glibc would do that, nobody else. You need the XID_Start/Continue list of bits, a single normalization table if NFC (or two if NFD), the scripts list (ranges of a single byte), and a bit of logic. With confusables I'm not sure. That's about 2k vs 20m.