Joining Group - Manichaean Nun

Manichaean Nun is a letter in the Manichaean script, used for writing the Manichaean religion’s texts, and its joining group value indicates that it connects to both preceding and following characters within a word. This means the Nun takes an initial or medial form when adjacent to other letters that join, but it does not connect to the left or right if the neighboring character is non-joining, such as a space or a vowel sign that breaks the cursive flow. The joining group specifically defines its behavior for shaping in Arabic-script-like contexts, ensuring the glyph renders correctly with its ligature patterns, and it is categorized alongside other consonants that form full bi-directional joins.