CustDev is a structured conversation between a company representative and potential or existing customers with the goal of gaining deep insights into their needs, preferences, and pain points. These interviews are typically conducted to validate assumptions, gather feedback on product ideas, and identify opportunities for improvement. During the interview, the interviewer asks open-ended questions to encourage candid responses and listens attentively to the customer's perspective. The process involves active listening, empathy, and a willingness to adapt based on the feedback received. The insights gained from customer development interviews are invaluable for shaping product development, refining marketing strategies, and enhancing overall customer satisfaction.
There are different types and scenarios for CustDevs. There is no universal list of questions or universal script. And no, AI can not give you deep insights from customers' head too.
It is always better to consult with expert before investing time and money into interviews.

Community management involves building, engaging, and managing a community of people around a brand, product, or service. It includes activities like online-events, responding to customer inquiries and feedback, creating and sharing content, and fostering relationships with community members.
In simple words, community management helps projects grow by creating a loyal and engaged customer base. By nurturing relationships with customers and providing valuable support and content, businesses can increase brand awareness, drive customer loyalty, and ultimately boost sales. Additionally, an active and positive community can serve as advocates for the brand, attracting new customers through word-of-mouth referrals and positive reviews.

If you are familiar with online RPG games, you may already witnessed brilliant community managers in action, since originally this role was created in game industry.