You were shown a service and told to do the same — what are your actions?

If a service was demonstrated and I need to create a similar one, I would:

1. Carefully study the functionality of the service, its behavior, and business logic.
2. Analyze the architecture: what technologies and patterns are used.
3. Define requirements and compile a list of features to implement.
4. Design the architecture and project structure, considering scalability and support.
5. Start development, focusing on code quality, testing, and documentation.
6. Conduct regular reviews and testing to ensure the service matches the original.

It's important not just to copy, but to understand how and why the service works the way it does, so that you can improve or adapt it to your tasks if necessary.