PayPal and MoonPay just launched a platform for custom stablecoin issuance, PYUSDx, allowing developers to create stablecoins backed by PayPal's PYUSD, which matters because it brings #stablecoin innovation to a wider audience, leveraging #crypto and #fintech advancements, potentially disrupting #traditional payment systems, and this could have broader implications for the market as a whole, what role will custom stablecoins play in the future of digital payments?