What's the tar-parser going to be used for?

[louwers]

So I had this idea of instead of using a bundler, why not just compress all files, download and decompress in the browser, stick the files in a service worker cache, and call it a day? Then you can use ESM modules directly without bundling.

I find it intriguing to find a tar-parser here. Is avoiding bundlers what the intended purpose is, or am I wildly off?