Phofsit Daibuun

Phofsit Daibuun (PSDB) is an orthography in the Latin alphabet for Taiwanese Hokkien based on Modern Literal Taiwanese. It is able to use the ASCII character set to indicate the proper variation of pitch without any subsidiary scripts or diacritic symbols.
Phonology.
Nasalized syllables are indicated by "v" preceding the syllable nucleus. Except for b, j, l, which do not precede nasalized vowels, and m and n, which are already nasals.
Regarding the pronunciation of "oi":