- When a project reaches a popularity threshold (for example 10k github stars or gets to be the most popular project is his category - example: the most popular 3D library) would get a subdomain:
https://jquery.js.org/eachplugin
https://node.js.org/express
When we get exceptions, in this case, express grew and got autonomous, https://node.js.org/express would redirect to:
https://express.js.org/