static int manager_new_connection_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
_cleanup_(client_freep) Client *c = NULL;
static int manager_new_connection_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
_cleanup_(client_freep) Client *c = NULL;