@@ -445,10 +445,24 @@
    lifetime::exit_sunshine(0, true);
  }
  std::string get_env(const std::string &name) {
    if (const auto value = getenv(name.c_str()); value != nullptr) {
      return value;
    }
    return "";
  }
  int set_env(const std::string &name, const std::string &value) {
    return setenv(name.c_str(), value.c_str(), 1);
  }
  int append_env(const std::string &name, const std::string &value, const std::string &separator) {
    if (const std::string old_value = get_env(name); !old_value.contains(value)) {
      return set_env(name, old_value.empty() ? value : old_value + separator + value);
    }
    return 0;
  }
  int unset_env(const std::string &name) {
    return unsetenv(name.c_str());
  }
@@ -1130,6 +1144,8 @@
    // enable Vulkan video extensions for AMD RADV
    set_env("RADV_PERFTEST", "video_encode");
    // Above is deprecated on Mesa 26.1+ and replaced by (keep both to ensure best compatibility):
    append_env("RADV_EXPERIMENTAL", "video_encode", ",");
    // These are allowed to fail.
    gbm::init();