sparreal-os

Use when creating, restoring, or debugging a bare-test driver test in this repository; covers cargo t no_std tests, QEMU device setup, phased recovery, runner config, and link-script issues.

Use when creating, refactoring, or maintaining a bare-metal driver in this repository; covers kernel-provided dma-api and mmio-api integration, driver construction patterns, bare-test usage, and validation commands.