assertThat(peeker.getDone(input1)).isSameInstanceAs("value1");
                    try {
                      peeker.getDone(input2Failed);
                      fail("Peeker.getDone() should fail for failed inputs");
                    } catch (ExecutionException expected) {
                    }
                    try {
                      peeker.getDone(nonInput);

   *         .call(
   *             () ->
   *                 new UsageHistory(
   *                     username,
   *                     Futures.getDone(loginDateFuture),
   *                     Futures.getDone(recentCommandsFuture)),
   *             executor);
   * }
   *
   * @since 20.0
   */
  @GwtCompatible
  public static final class FutureCombiner<V extends @Nullable Object> {

    }

    private static boolean isDockerAvailable() {
        try {
            // Check if we're in CI environment (GitHub Actions specifically)
            String ci = System.getenv("CI");
            String githubActions = System.getenv("GITHUB_ACTIONS");
            boolean isCI = "true".equals(ci) || "true".equals(githubActions);

            // First, check if docker command is available