Instructions:

To type directly with the computer keyboard:

• Use the capitals: H   T   S for ḥ   ṭ   ṣ
• Type c for š
• Type a for ʾ
• Type - for ʿ
• For the final consonants, type an escape after the consonant

Download the font Noto Sans Nabataean

Copy [Ctrl]+[C] & Paste [Ctrl]+[V]

Note:

The Nabataean is written from right to left.