Schedule C part III question

On both turbo tax and free tax USA I am noticing the same thing. This is my first time filing taxes, and I started my business in 2022 as an SMLLC. I sold on Etsy and Smugmug- a photo-selling platform. I am using the cash method, and in part II, line 22, I have my supply cost listed along with  De Minimis Safe Harbor Election.  I made about $5800 this year with my business. After filling everything out, my Part III Cost of Goods Sold is blank. Do I not need to worry about listing anything, such as inventory or Materials and supplies?

Thank you for the help again.