Main idea
Your About section is not a bio. It is a quick guide for someone deciding whether to reply, refer, review, or follow up with you.
Write it for a busy person on a phone. Make every line answer: who are you, what do you build, and what should they do next.
What to include
Keep it short. Aim for 5 to 8 lines or 80 to 140 words.
Cover five things: who you are, what you build, current skills, what you are looking for, and how to contact you.