Sure! The infrastructure cost is very low because the app is lighweight. So I pay hosting from my own pocket (I rent a dedicated server), for the statisfaction of knowing that people use my app. The only thing that is costly for me is the (optional) included AI, so I give very limited free credits to users. If users need more, they can use their own API key. I have no plan in the near future to add a paid plan, but if the infrastructure costs were to become too high for me, I could add an entreprise plan or something like that.