Turtle Kevux is a Linux system primarily based on GNU software, FLL software, and a Linux kernel. Historically Turtle Kevux was compiled using uClibc as an alternative to GLibc. Turtle Kevux now uses Musl-Libc in place of GLibc.
This Linux based distribution deviates from Linux and even utilizes modifications to the Linux kernel. Turtle Kevux does not comply with many of the standards that many Linux distributions follow. This is especially true when it comes to SystemD as many parts of the SystemD design is the direct opposite of how Turtle Kevux and its underlying software (FLL) are designed.
Turtle Kevux is neither FHS nor LSB compliant, which is seen as one of the many security enhancements. Turtle Kevux might closely follow these standards, but those standards are deviated from as desired.