New RISC-V CPU cores are released every year, and while these cores typically conform to standardized RISC-V ISA profiles, vendors frequently introduce additional proprietary extensions. This growing diversity makes it difficult for developers to accurately determine the exact instruction sets supported by a specific CPU core, thereby complicating the selection of appropriate toolchains, firmware, and operating system images. The RuyiSDK Package Manager addresses this challenge by aggregating information on RISC-V CPUs, MCUs, and development boards together with their corresponding toolchains, firmware, and system images. It establishes a comprehensive mapping between CPU architectures, development boards, and required software resources. This mapping is maintained in a structured packages index, which provides a unified, metadata-driven representation of RISC-V hardware and software resources, along with associated download links. This paper presents the overall architecture and design of the RuyiSDK Package Manager, focusing on three core components: package management, virtual environment isolation, and device provisioning. The system currently supports most commercially available RISC-V development boards. Beyond toolchain integration, it lays the foundation for IDE integration and other developer utilities. By streamlining access to software resources and standardizing development workflows, the system lowers the barrier to entry for RISC-V software development, facilitates developer onboarding, and improves visibility into software support across heterogeneous RISC-V platforms.