}

    private
    fun collectMirrorUrls(): Map<String, String> =
        // expected env var format: repo1_id:repo1_url,repo2_id:repo2_url,...
        System.getenv("REPO_MIRROR_URLS")?.ifBlank { null }?.split(',')?.associate { nameToUrl ->
            val (name, url) = nameToUrl.split(':', limit = 2)
            name to url
        } ?: emptyMap()

    "ANDROID_PREFS_ROOT",

    // Used by Visual Studio
    "USERNAME",
    "USER",
    "USERDOMAIN",
    "USERPROFILE",
    "LOCALAPPDATA",

    // Used by Gradle test infrastructure
    "REPO_MIRROR_URLS",
    "YARNPKG_MIRROR_URL",

    // Used to find local java installations
    "SDKMAN_CANDIDATES_DIR",

    // temp dir
    "TMPDIR",
    "TMP",
    "TEMP",

    // Seems important on Windows