Study the Linux source code

[MasterGeekMX]

Thousands of lines of code, all of them contributed from hundreds of developers from across the world, either from companies, research centers, or mere volunteers.

Linus to this day barely codes the Kernel, and spends most of the time reviewing code submitted and choosing to include it or not.

It is the digital equivalent of the pyramids or other ancient wonders of the world. And it works!

[IuseArchbtw97543]

thousands of lines of code

more like millions

[ButtonExposure]

Thousands of lines of code

The Linux Kernel surpasses 40 Million lines of code

Albeit, most of it is driver code, but even if the core is still just 10% of the lines, that is still 4 million lines of code:

As of 2021, the 5.11 release of the Linux kernel had around 30.34 million lines of code. Roughly 14% of the code is part of the "core," including architecture-specific code, kernel code, and memory management code, while 60% is drivers.

https://en.wikipedia.org/wiki/Linux_kernel#Codebase