Built a custom Raspberry Pi 4 RT OS using Buildroot.
Manually downloaded the Raspberry kernel (6.12.61) and PREEMPT_RT patch (6.12.57), applied locally and produced a bootable SD.
It works.
No GUI, CLI tools only, deterministic boot and real-time behavior.
Learning by doing 🤓
#Linux #Buildroot #RaspberryPi #PREEMPT_RT #RealTime #Embedded #NoGUI #CLI #Nerd








