Add SystemRequirements field to document Linux/Windows-only support (#4)

Author: dfalbel

cuda12.6/DESCRIPTION

@@ -7,6 +7,7 @@ Description: Provides CUDA 12.6 native libraries (runtime, cuBLAS, cuDNN, cuFFT,
     cuSOLVER, cuSPARSE, CUPTI, NVRTC, NvJitLink, NCCL, NVSHMEM, and NVCC) by
     downloading pre-built binaries from PyPI at install time. Intended to be used
     as a dependency by packages that require CUDA 12.6.
+SystemRequirements: Linux or Windows; not supported on macOS.
 License: MIT + file LICENSE
 URL: https://github.com/mlverse/cudatoolkit
 BugReports: https://github.com/mlverse/cudatoolkit/issues

cuda12.8/DESCRIPTION

@@ -7,6 +7,7 @@ Description: Provides CUDA 12.8 native libraries (runtime, cuBLAS, cuDNN, cuFFT,
     cuSOLVER, cuSPARSE, CUPTI, NVRTC, NvJitLink, NCCL, NVSHMEM, and NVCC) by
     downloading pre-built binaries from PyPI at install time. Intended to be used
     as a dependency by packages that require CUDA 12.8.
+SystemRequirements: Linux or Windows; not supported on macOS.
 License: MIT + file LICENSE
 URL: https://github.com/mlverse/cudatoolkit
 BugReports: https://github.com/mlverse/cudatoolkit/issues

cuda12.9/DESCRIPTION

@@ -7,6 +7,7 @@ Description: Provides CUDA 12.9 native libraries (runtime, cuBLAS, cuDNN, cuFFT,
     cuSOLVER, cuSPARSE, CUPTI, NVRTC, NvJitLink, NCCL, NVSHMEM, and NVCC) by
     downloading pre-built binaries from PyPI at install time. Intended to be used
     as a dependency by packages that require CUDA 12.9.
+SystemRequirements: Linux or Windows; not supported on macOS.
 License: MIT + file LICENSE
 URL: https://github.com/mlverse/cudatoolkit
 BugReports: https://github.com/mlverse/cudatoolkit/issues

cuda13.2/DESCRIPTION

@@ -7,6 +7,7 @@ Description: Provides CUDA 13.2 native libraries (runtime, cuBLAS, cuDNN, cuFFT,
     cuSOLVER, cuSPARSE, CUPTI, NVRTC, NvJitLink, NCCL, NVSHMEM, and NVCC) by
     downloading pre-built binaries from PyPI at install time. Intended to be used
     as a dependency by packages that require CUDA 13.2.
+SystemRequirements: Linux or Windows; not supported on macOS.
 License: MIT + file LICENSE
 URL: https://github.com/mlverse/cudatoolkit
 BugReports: https://github.com/mlverse/cudatoolkit/issues

shared/DESCRIPTION.template

@@ -7,6 +7,7 @@ Description: Provides CUDA {{CUDA_MINOR}} native libraries (runtime, cuBLAS, cuD
     cuSOLVER, cuSPARSE, CUPTI, NVRTC, NvJitLink, NCCL, NVSHMEM, and NVCC) by
     downloading pre-built binaries from PyPI at install time. Intended to be used
     as a dependency by packages that require CUDA {{CUDA_MINOR}}.
+SystemRequirements: Linux or Windows; not supported on macOS.
 License: MIT + file LICENSE
 URL: https://github.com/mlverse/cudatoolkit
 BugReports: https://github.com/mlverse/cudatoolkit/issues