windows
x86_64-pc-windows-gnu
r2-x86_64-pc-windows-gnu-5.7.12.zip linux
aarch64-linux-gnu
r2-aarch64-linux-gnu-5.7.12.tar.gz
x86_64-linux-gnu
r2-x86_64-linux-gnu-5.7.12.tar.gz mac
arm64-apple-darwin
r2-arm64-apple-darwin-5.7.12.tar.gz
x86_64-apple-darwin
r2-x86_64-apple-darwin-5.7.12.tar.gz