start out updating macos

src/os/macos.cpp

@@ -1,6 +1,8 @@
 #ifdef __APPLE__
 
+#include <map>
 #include <sys/sysctl.h>
+#include <sys/utsname.h>
 
 #include "macos/bridge.h"
 #include "os.h"
@@ -25,4 +27,29 @@ fn GetOSVersion() -> string { return GetMacOSVersion(); }
 
 fn GetDesktopEnvironment() -> string { return "Aqua"; }
 
+fn GetKernelVersion() -> string {
+  struct utsname uts;
+
+  if (uname(&uts) == -1) {
+    ERROR_LOG("uname() failed: {}", std::strerror(errno));
+    return "";
+  }
+
+  return static_cast<const char*>(uts.release);
+}
+
+fn GetHost() -> string {
+  std::array<char, 256> hwModel;
+  size_t                hwModelLen = sizeof(hwModel);
+
+  sysctlbyname("hw.model", hwModel.data(), &hwModelLen, nullptr, 0);
+
+  // shamelessly stolen from https://github.com/fastfetch-cli/fastfetch/blob/dev/src/detection/host/host_mac.c
+  std::map<string, string> modelNameByHwModel = {
+    { "Mac14,2", "MacBook Air (M2, 2022)" }
+  };
+
+  return modelNameByHwModel[hwModel.data()];
+}
+
 #endif