Here is the biggest problem with cryptos that no one is focusing on
Yeah right! The biggest problem.
If you want to sell digital goods or if you need a notification on your shop that client made payment you have to use a third party or a node or a smart contract
Actually almost all clients and payment scripts offer this by default.
Not one crypto solved the problem of allowing merchants to sell their own digital goods easy
Crypto is money, the coin itself doesn't have to offer anything, it's the additional software that gives these features.
Digital money is not allowing you to pay online, it's VISA and other payment gateways that do this.
To host a node costs money ( hosting fees )
To use a third party costs money ( fees )
You can host your own node and you don't have to use a thrid party.
We must solve this problem
The merchant should easy copy/paste a code and put it in his html .
"html", huh? I'm begging to understand why you're having that much trouble finding work