[quwert95]

For some languages this can make sense, but I think most languages aren't suited for installing things, manipulating the filesystem, etc.

I think of scripts as the middleware between the operating system and the shipped code. The code is controlled by the operating system, so the operating system's tools should be used to manage it. In many cases this means bash or make.

Plus, I don't want modern Javascript to do things on the filesystem that would require importing dozens of projects that I need to vet before using. Golang or Python perhaps, but the buildchain for modern Javascript is hell as-is; it doesn't need another layer of Javascript.