wtf is third-party-gnulib?

This repository, third-party-gnulib, is a mirror of an upstream project called gnulib. It exists primarily to serve as a dependency for osquery, a popular tool that lets you query your computer's operating system as if it were a database. The core idea behind the original gnulib project is to provide a collection of standard building blocks that software developers can use to make sure their programs work consistently across different operating systems, like Linux, macOS, and Windows. At a high level, software written in languages like C often runs into compatibility issues when moving between different systems. Simple functions for handling text, files, or memory might exist on one operating system but behave differently or be missing entirely on another. This project gathers reliable versions of those fundamental functions in one place. Developers pulling this into their project get a tested, shared toolkit that smooths over those differences, so they do not have to write and maintain their own custom workarounds for each operating system. The people who would use this are developers building tools that need to run on multiple operating systems without rewriting core logic each time. In this specific case, the maintainers of osquery use it so their software can run reliably on whatever computer a user has. A founder or product manager building a cross-platform system tool would benefit from this kind of dependency for the same reason: it reduces the engineering effort required to ensure a product works everywhere, saving time and preventing bugs. The project itself is written in C. As a mirror, this particular repository is mostly a synced copy of the official upstream source, kept within the osquery organization to pin a specific version or ensure stability for their own build process. The README does not go into further detail about specific modifications or usage instructions, instead pointing readers to the official online manual for full documentation on how the underlying toolkit works.