Author(s): Bernhard Bablok The detLFS project provides an ideal foundation for compiling Linux from source code, either to experience the fundamentals of how Linux works or to prepare an operating system for a project with very specific requirements. The Linux From Scratch (LFS) project has been around for more than 20 years [1]. It does not deliver software as a result, but detailed instructions on how to create an executable Linux system from the source code itself. Why might you want to take this route? (1) You might be a masochist with too much time on your hands. (2) You have a project with very specific requirements. (3) You want to learn fundamentally how Linux works. The detLFS [2] project by Thomas Dettbarn answers these needs.