Serverless computing has been around for a while; it used to be called "shared hosting with CGI." What's new is that it's become proprietary, instead of being

Serverless computing has been around for a while; it used to be called "shared hosting with CGI." What's new is that it's become proprietary, instead of being based on open standards. This has made it hard to test serverless apps offline, and made it nearly impossible to move a serverless app from one cloud platform to another.