What would be the required budget to host an alternative registry? I'm surprised any GAFAM still hasn't stepped-in and started building their alternative, at least for NPM to up its game in order not to become completely irrelevant.
at amazon, they maintain a private internal registry of packages with approved licenses and audits. this has been in place for several years. i assume other big corps enforce similar policies
This is Amazon, the company where the stuff they rolled their own now makes more money than the business it was rolled for: https://aws.amazon.com/codeartifact/