Raitchi Version 0.0.2 Released as an Experimental Android Emulator and Shared Runtime

Raitchi version 0.0.2 has been released as an experimental Android launcher and shared runtime for ARM64 Nintendo Switch games, utilizing an NVN-to-Vulkan graphics translation layer. The project builds upon upstream efforts including the Recomp lineage and an Android frontend derived from Eden.

Update and Compatibility Overview

Version 0.0.2 introduces fixes for package preparation, keyboard input, driver downloads, and Android packaging, according to the official repository release notes. The software utilizes continuous native execution (NCE) to run original CPU code without requiring per-game generated C code for the default path.

Developers emphasize that this is early compatibility work rather than a universal guarantee of playability. Users must supply their own compatible game packages, keys, firmware, saves, and shader codes, as these assets are not included in the distribution.

Performance and Testing Observations

Bounded launch observations on AYN Thor hardware—using specific driver and runtime combinations—recorded varying initial states, such as visible boot screens, menus, or intro scenes.

• Shader Preparation: The runtime prepares shader and pipeline recipes using bundled metadata catalogs, which include observed records for specific titles. Initial cache generation can involve processing delays, while cached runs execute faster.
• Optimizations: A targeted Fire Emblem shader local-memory optimization improved specific demo performance from approximately 5–6 frames per second to 30 frames per second under documented proof conditions.
• Known Limitations: Missing graphics, audio, services, unsupported package layouts, and startup failures still occur across various titles.

Attribution and Verification

Raitchi incorporates components and references from upstream projects, including LASRecomp, Eden, and various open-source libraries such as SDL, FFmpeg, and Vulkan utilities. Trademark owners retain all rights, and Raitchi is not affiliated with or endorsed by Nintendo or upstream maintainers.

To verify original announcements, check the official GitHub repository for release notes, source code, and integration documentation.