Documentation index

Building Blender extensions: package layout, manifests, permissions, registration, operators, UI, safe data handling, storage, dependencies, builds, and installation.
Material ID Baker: installation, settings, Substance Painter workflow, GLB export, recovery workflow, and troubleshooting.
Blender Python API notes: context and mode pitfalls, data-block ownership, lifecycle cleanup, evaluated meshes, materials, images, baking, file effects, and compatibility probes.
Testing and releasing: headless smoke tests, manifest/package validation, isolated installs, manual coverage, semantic versions, release checks, and system deployment.

These guides target modern add-on extensions in Blender 5.x. Repository-wide contributor requirements live in AGENTS.md.