Start with the social bit
A name, trip line or inside joke is enough. You do not need a layout in your head.
For non-designers
You are not being asked to design the shirt.
Tell Levyo the moment. Review the shirt mockup. If it is close, describe the change in normal words instead of choosing fonts or layouts.
Short answer:
No canvas. No font decisions. You bring the moment; Levyo gives you the shirt mockup to react to.
No design pressure
Levyo puts the shirt in front of you first.
Your first job is simple
Look at the shirt and decide whether it feels right for your group.
Changes stay conversational
If it is close, use Change something and say what feels off in normal words.
FAQ
Questions if you are not a designer
Do I need Canva or Photoshop first?
No. Levyo is for getting to a shirt without opening a design tool.
What if I cannot describe the design properly?
Start with the person, occasion or line. The first shirt gives you something concrete to react to.
What am I actually deciding?
Whether the shirt feels like your group, and what to change if it does not.