val extension = when {
                    BuildEnvironment.isWindows -> "windows.zip"
                    BuildEnvironment.isMacOsX && BuildEnvironment.isIntel -> "mac.zip"
                    BuildEnvironment.isMacOsX && !BuildEnvironment.isIntel -> "mac_arm.zip"
                    BuildEnvironment.isLinux -> "linux.tar.gz"
                    else -> throw IllegalStateException("Unsupported OS: ${OperatingSystem.current()}")

  Operating System:
    Windows:
      Windows 2000 or above.
    Unix based systems (Linux, Solaris and Mac OS X) and others:
      No minimum requirement.

  Installing Maven
  ----------------

  1) Unpack the archive where you would like to store the binaries, e.g.:

    Unix-based operating systems (Linux, Solaris and Mac OS X)
      tar zxvf apache-maven-4.x.y.tar.gz
    Windows
      unzip apache-maven-4.x.y.zip

test:macos_arm64_wheel_test_filters --test_tag_filters=-no_oss,-oss_excluded,-oss_serial,-no_oss_py39,-no_oss_py310,-nomac,-no_mac,-mac_excluded,-v1only,-gpu,-tpu,-benchmark-test,-no_mac_arm64,-no_aarch64
test:macos_arm64_wheel_test_filters --build_tag_filters=-no_oss,-oss_excluded,-oss_serial,-no_oss_py39,-no_oss_py310,-nomac,-no_mac,-mac_excluded,-v1only,-gpu,-tpu,-benchmark-test,-no_mac_arm64,-no_aarch64

        "Windows",
        androidHome = """C:\Program Files\android\sdk""",
        jprofilerHome = """C:\Program Files\jprofiler\jprofiler11.1.4""",
        perfTestWorkingDir = "P:/",
    ),
    MACOS(
        "Mac",
        androidHome = "/opt/android/sdk",
        jprofilerHome = "/Applications/JProfiler11.1.4.app",
        defaultArch = Arch.AARCH64
    );

aes128-ctr
aes192-ctr
aes256-ctr
******@****.***
******@****.***
******@****.***
arcfour256
arcfour128
arcfour
aes128-cbc
3des-cbc
```

`--sftp=mac-algos=...` specifies a default set of MAC algorithms in preference order.
This is based on RFC 4253, section 6.4, but with hmac-md5 variants removed because they have 
reached the end of their useful life.

Valid values: 

```

# limitations under the License.

.DEFAULT_GOAL := default

# This repository has been enabled for BUILD_WITH_CONTAINER=1. Some
# test cases fail within Docker, and Mac + Docker isn't quite perfect.
# For more information see: https://github.com/istio/istio/pull/19322/

BUILD_WITH_CONTAINER ?= 1
CONTAINER_OPTIONS = --mount type=bind,source=/tmp,destination=/tmp --net=host

pkg syscall (darwin-arm64), const SYS___MAC_GET_LCID = 391
pkg syscall (darwin-arm64), const SYS___MAC_GET_LCID ideal-int
pkg syscall (darwin-arm64), const SYS___MAC_GET_LCTX = 392
pkg syscall (darwin-arm64), const SYS___MAC_GET_LCTX ideal-int
pkg syscall (darwin-arm64), const SYS___MAC_GET_LINK = 384
pkg syscall (darwin-arm64), const SYS___MAC_GET_LINK ideal-int

application/futuresplash       spl              # Macromedia Flash
application/hep                hep              # Hummingbird Host Explorer Profiles
application/lotus-123          wks              # Lotus 123
application/mac-binhex40       hqx              # Macintosh binhexed archives
application/mspowerpoint       ppt              # Microsoft Powerpoint
application/msword             doc              # Microsoft Word

 * https://lauri.võsandi.com/2017/03/yubikey-for-ssh-auth.html
 *
 * Using PKCS11 support in the JDK.
 * https://tersesystems.com/blog/2018/09/08/keymanagers-and-keystores/
 *
 * Install OpenSC separately. On a mac `brew cast install opensc`.
 */
@SuppressSignatureCheck
class YubikeyClientAuth {
  fun run() {
    // The typical PKCS11 slot, may vary with different hardware.
    val slot = 0

pkg syscall (freebsd-arm64), const SYS___MAC_GET_LINK ideal-int
pkg syscall (freebsd-arm64), const SYS___MAC_GET_PID = 409
pkg syscall (freebsd-arm64), const SYS___MAC_GET_PID ideal-int
pkg syscall (freebsd-arm64), const SYS___MAC_GET_PROC = 384
pkg syscall (freebsd-arm64), const SYS___MAC_GET_PROC ideal-int
pkg syscall (freebsd-arm64), const SYS___MAC_SET_FD = 388
pkg syscall (freebsd-arm64), const SYS___MAC_SET_FD ideal-int