What is a shim repository?

Question

In the context of web programming. What is a shim repository?

For instance, when I search \"handlebars\" in the bower package search page one of the result is:

Answer 1

I don't think "shim repository" is a standardized term in web programming - its just how that specific project - the Components project - describes the repositories they create as stand-ins for those popular 3rd-party components.

Those repositories are "shims" in the sense that they adapt the releases of those popular components into a standard format needed by the Components project to support the package managers that the Components project targets.