Layers from reference R36S.
The same flow is read from bottom to top: the physical base starts the device, boot delivers the kernel, the profile describes the peripherals and the experience layer presents the games.
Choose a layer to see its function, technologies, and evidence criteria. Use the arrow keys to move through the tree.
Selected layer
Experience
Launcher, interface and emulation. The launcher drives the library and the game session.
Present the collection, guide the controls, and start a local session.
Validation observes the arrival of a usable interface on the profile device.
Selected layer
Running system
Rootfs, systemd, SDL2 with KMSDRM and the local library index.
Upload essential services, provide the interface and organize local content.
The bring-up profile separates rootfs mounting and shell arrival from interface execution.
Selected layer
Visual profile and hardware
DTB, dashboard and device-specific data come before the player experience.
Associate the system with the correct panel and peripherals for each known variant.
The target is hashed and the panel profile is normalized before validation.
Selected layer
Kernel
The kernel initializes the devices described by the hardware profile.
Provide drivers, memory, storage, and the foundation for user space.
A kernel that fails before mounting rootfs is investigated at this layer.
Selected layer
Startup
Loader, trust and U-Boot prepare the transition to the kernel.
Load boot artifacts and transfer control to the profile kernel.
The presence of the U-Boot banner differentiates a boot failure from a later failure.
Selected layer
Physical basis
BootROM and the device hardware form the immutable starting point for booting.
Define the physical reference to be identified and verified before any changes.
Without LED or serial banner, the investigation remains at the physical base or initial boot.
The technical reference is not equivalent to an image of a public installation. Marks identify technologies used and do not represent endorsement or distribution.
Experience
Launcher, interface and emulation. The launcher drives the library and the game session.
Running system
Rootfs, systemd, SDL2 with KMSDRM and the local library index.
Visual profile and hardware
DTB, dashboard and device-specific data come before the player experience.
Kernel
The kernel initializes the devices described by the hardware profile.
Startup
Loader, trust and U-Boot prepare the transition to the kernel.
Physical basis
BootROM and the device hardware form the immutable starting point for booting.