The **bit‑loader‑shimmer** package is a plugin for the Bit bundler that lets developers shim legacy or non‑module scripts (e.g., Bootstrap, jQuery) by specifying the file path or module name, declaring import dependencies, and exporting globals as proper ES/CommonJS modules. It’s aimed at Bit users who need to integrate third‑party libraries that aren’t originally packaged as modules into their Bit‑bundled applications.