It’s easy to say you can do something. It’s easy to hope you can do something. It’s easy to promise to do something.
If you want to close the sale, show you have done it in the past.
Too often people want to show a powerpoint of what can be done, or show screenshots of how they would do something. It’s so much more powerful to show something that is actually built and working.
Don’t promise, provide proof.
Have a great day!