Learning to fly

I hope this message finds you well. I am currently exploring options for building a custom drone and came across the following resource: Design Your Own Custom Drone. It appears to be closely aligned with my objectives.

Could anyone provide insight into how this process works? Specifically, I am looking for guidance on locating and using a configurator that can assist in designing a custom drone tailored to my needs.

I appreciate any recommendations or resources you could share.

Thank you in advance for your assistance.