build-matrix.json

{
  "comment1": "runners hosted by GitHub, always enabled",
  "hosted": [
    {
      "os": "ubuntu-latest",
      "os_name": "linux",
      "target_arch": "x64",
      "exe_ext": ""
    },
    {
      "os": "macos-latest",
      "os_name": "osx",
      "target_arch": "x64",
      "exe_ext": ""
    },
    {
      "os": "windows-latest",
      "os_name": "win",
      "target_arch": "x64",
      "exe_ext": ".exe"
    }
  ],

  "comment2": "runners hosted by the owner, enabled by the ENABLE_SELF_HOSTED variable being set on the repo",
  "selfHosted": [
    {
      "os": "self-hosted-linux-arm64",
      "os_name": "linux",
      "target_arch": "arm64",
      "exe_ext": ""
    },
    {
      "os": "self-hosted-macos-arm64",
      "os_name": "osx",
      "target_arch": "arm64",
      "exe_ext": ""
    }
  ]
}