[calculated]

I think your best bet is to code it yourself (assuming you can, I don’t know your background). If you’re trying to sell a digital product it’s not going to take you much time. The core part will be to integrate a payment processor like stripe. There are lots of libraries which simplify this process. One important thing to take into account is to make sure you have as many payment options as possible to make the sale process as easy as possible. (ApplePay, GPay, etc.)

[slmjkdbtl]

Yeah ideally I want to code myself except the payment part, just need a good payment system provider that supports multiple options. My country isn't directly supported by Stripe (but I heard there's workaround haven't dived in yet), so I currently don't know other good options.

Edit: I just learned it's called "Payment gateway", looking at various options now..

[calculated]

Great stuff. Yeah in case your country isn’t supported be sure to research local providers. There surely are some. If not local then there’s other ones supporting it.