The funny thing is that .cc domains are one of the cheapest domains and perhaps they run this on all free tier of Clerk,Supabase and vercel that they mention.

7$ is an insanely high price to have something for a monthly rate.

Just want to point out because of the number 7 as a reference but I have a vps which costs me 7$... per Year.

Edit: I think if the developer behind it is reading this, then perhaps I slightly recommend to actually follow towards a more donation based model. Its just my feeling that it might be very hard to sell at 7$/month but I feel like you wish to earn money from your project and that's very understandable and I wish you good luck in that even if it might be that many/most people in this website aren't the direct audience for this price-point :-)