Branch Model

Branch model

Which branch to read, and why one of them is called openke. Written against the openke branch at 95d0321e, which is what NebulaOS 1.0.2 ships (KERNEL_PIN in the firmware manifest at 3bdf3ff, with KERNEL_BRANCH=openke) and is also the branch tip.

Branch	What it is
main	a98c2e1f2, "initial release" - the pristine vendor baseline, forked from Llixuma/ingenic-linux-kernel6.6-x2000-v1.0-20250221
openke	The branch NebulaOS builds from: 133 commits on top of that baseline

openke is the default branch, and the one to read. main exists so the vendor baseline stays available for comparison - git diff origin/main origin/openke is the complete set of changes.

A caution about that diff: it reports around 13,000 files changed, which is not a measure of NebulaOS's footprint. Most of it is the vendor tree reorganisation that came with the OpenKE import. The NebulaOS-specific surface is small and listed below.

The name

The branch is called openke because this repository's history runs through the OpenKE import, and the name was never changed when the repository was renamed. OpenKE is a separate project that shares an author and some history with NebulaOS; it is not the same thing, and its documentation does not describe NebulaOS. Read nothing into the branch name beyond its history - see What NebulaOS changes, whose first layer is exactly the work inherited from it.

Which one ships

The firmware repository pins an exact commit here and checks it out directly. KERNEL_PIN is what ships; this branch's tip is not, when the two differ. At 1.0.2 they are the same commit, 95d0321e. See Build and integration.