diff --git a/port/posix-h4-airoc/main.c b/port/posix-h4-airoc/main.c
index 282a02fbb..188a3ee5f 100644
--- a/port/posix-h4-airoc/main.c
+++ b/port/posix-h4-airoc/main.c
@@ -43,8 +43,6 @@
 //
 // *****************************************************************************
 
-#include <btstack_signal.h>
-#include <getopt.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -60,10 +58,12 @@
 #include "btstack_chipset_bcm.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
+#include "btstack_main_config.h"
 #include "btstack_memory.h"
 #include "btstack_run_loop.h"
 #include "btstack_run_loop_posix.h"
 #include "btstack_stdin.h"
+#include "btstack_signal.h"
 #include "btstack_tlv_posix.h"
 #include "btstack_uart.h"
 #include "classic/btstack_link_key_db_tlv.h"
@@ -81,16 +81,15 @@ static char tlv_db_path[100];
 static const btstack_tlv_t * tlv_impl;
 static btstack_tlv_posix_t   tlv_context;
 static bool tlv_reset;
-static bd_addr_t custom_address;
-static bool custom_address_set;
+static bd_addr_t custom_address = {0,0,0,0,0,0};
 
 static hci_transport_config_uart_t transport_config = {
-    HCI_TRANSPORT_CONFIG_UART,
-    921600,
-    921600,  // main baudrate
-    1,  // flow control
-    NULL,
-    BTSTACK_UART_PARITY_OFF, // parity
+    .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
+    .baudrate_init = 921600,
+    .baudrate_main = 921600,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_ON,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 static btstack_uart_config_t uart_config;
 
@@ -106,7 +105,7 @@ static void sigint_handler(void){
     // power down
     hci_power_control(HCI_POWER_OFF);
     hci_close();
-    log_info("Good bye, see you.\n");    
+    log_info("Good bye, see you.\n");
     exit(0);
 }
 
@@ -183,7 +182,7 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
             btstack_tlv_set_instance(tlv_impl, &tlv_context);
 #ifdef ENABLE_CLASSIC
             hci_set_link_key_db(btstack_link_key_db_tlv_get_instance(tlv_impl, &tlv_context));
-#endif    
+#endif
 #ifdef ENABLE_BLE
             le_device_db_tlv_configure(tlv_impl, &tlv_context);
 #endif
@@ -211,98 +210,9 @@ static void enter_download_mode(const btstack_uart_t * the_uart_driver){
     printf("Firmware download started\n");
 }
 
-static char short_options[] = "+hu:l:rb:";
-
-static struct option long_options[] = {
-    {"help",        no_argument,        NULL,   'h'},
-    {"logfile",    required_argument,  NULL,   'l'},
-    {"reset-tlv",    no_argument,       NULL,   'r'},
-    {"tty",    required_argument,  NULL,   'u'},
-    {"bd-addr", required_argument, NULL, 'b'},
-    {0, 0, 0, 0}
-};
-
-static char *help_options[] = {
-    "print (this) help.",
-    "set file to store debug output and HCI trace.",
-    "reset bonding information stored in TLV.",
-    "set path to Bluetooth Controller.",
-    "set Bluetooth address.",
-};
-
-static char *option_arg_name[] = {
-    "",
-    "LOGFILE",
-    "",
-    "TTY",
-    "BD_ADDR",
-};
-
-static void usage(const char *name){
-    unsigned int i;
-    printf( "usage:\n\t%s [options]\n", name );
-    printf("valid options:\n");
-    for( i=0; long_options[i].name != 0; i++) {
-        printf("--%-10s| -%c  %-10s\t\t%s\n", long_options[i].name, long_options[i].val, option_arg_name[i], help_options[i] );
-    }
-}
-
 int main(int argc, const char * argv[]){
 
-    const char * log_file_path = NULL;
-
-    // set default device path
-    transport_config.device_name = "/dev/tty.usbserial-FT1XBIL9"; // murata m.2 adapter
-
-    int oldopterr = opterr;
-    opterr = 0;
-    // parse command line parameters
-    while(true){
-        int c = getopt_long( argc, (char* const *)argv, short_options, long_options, NULL );
-        if (c < 0) {
-            break;
-        }
-        if (c == '?'){
-            continue;
-        }
-        switch (c) {
-            case 'u':
-                transport_config.device_name = optarg;
-                break;
-            case 'l':
-                log_file_path = optarg;
-                break;
-            case 'r':
-                tlv_reset = true;
-                break;
-            case 'b':
-                sscanf_bd_addr(optarg, custom_address);
-                custom_address_set = true;
-                break;
-            case 'h':
-            default:
-                usage(argv[0]);
-                return 0;
-        }
-    }
-    // reset getopt parsing, so it works as intended from btstack_main
-    optind = 1;
-    opterr = oldopterr;
-
-    /// GET STARTED with BTstack ///
-    btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
-
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    if (log_file_path == NULL){
-        log_file_path = "/tmp/hci_dump.pklg";
-    }
-    hci_dump_posix_fs_open(log_file_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", log_file_path);
-
-    printf("tty: %s\n", transport_config.device_name);
+    btstack_main_config( argc, argv, &transport_config, custom_address, &tlv_reset );
 
     // get BCM chipset driver
     const btstack_chipset_t * chipset = btstack_chipset_bcm_instance();
@@ -323,7 +233,7 @@ int main(int argc, const char * argv[]){
     hci_init(transport, (void*) &transport_config);
     hci_set_chipset(btstack_chipset_bcm_instance());
 
-    if (custom_address_set) {
+    if (!btstack_is_null_bd_addr(custom_address)) {
         hci_set_bd_addr(custom_address);
     }
 
@@ -346,6 +256,6 @@ int main(int argc, const char * argv[]){
     btstack_main(argc, argv);
 
     // go
-    btstack_run_loop_execute();    
+    btstack_run_loop_execute(); 
     return 0;
 }
diff --git a/port/posix-h4-atwilc3000/Makefile b/port/posix-h4-atwilc3000/Makefile
index 65db5ca95..b442258c0 100644
--- a/port/posix-h4-atwilc3000/Makefile
+++ b/port/posix-h4-atwilc3000/Makefile
@@ -10,8 +10,9 @@ CORE += \
 	hci_transport_h4.c \
 	le_device_db_tlv.c \
 	main.c \
-	wav_util.c 					\
+	wav_util.c					\
 	btstack_stdin_posix.c \
+	btstack_main_config.c \
 	btstack_signal.c \
 
 # examples
diff --git a/port/posix-h4-atwilc3000/main.c b/port/posix-h4-atwilc3000/main.c
index f49a61a88..42360957b 100644
--- a/port/posix-h4-atwilc3000/main.c
+++ b/port/posix-h4-atwilc3000/main.c
@@ -54,9 +54,7 @@
 #include "ble/le_device_db_tlv.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
-#include "btstack_memory.h"
-#include "btstack_run_loop.h"
-#include "btstack_run_loop_posix.h"
+#include "btstack_main_config.h"
 #include "btstack_signal.h"
 #include "btstack_stdin.h"
 #include "btstack_tlv_posix.h"
@@ -89,11 +87,12 @@ static bool shutdown_triggered;
 int btstack_main(int argc, const char * argv[]);
 
 static hci_transport_config_uart_t transport_config = {
-    HCI_TRANSPORT_CONFIG_UART,
-    921600,
-    0,       // main baudrate
-    1,       // flow control
-    NULL,
+    .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
+    .baudrate_init = 921600,
+    .baudrate_main = 0,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_ON,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 
 static btstack_packet_callback_registration_t hci_event_callback_registration;
@@ -124,7 +123,7 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
                     exit(0);
                     break;
                 default:
-                    break;                    
+                    break;
             }
             break;
         default:
@@ -158,7 +157,7 @@ static void phase2(int status){
     const hci_transport_t * transport = hci_transport_h4_instance_for_uart(uart_driver);
     hci_init(transport, (void*) &transport_config);
     hci_set_chipset(btstack_chipset_atwilc3000_instance());
-    
+
     // inform about BTstack state
     hci_event_callback_registration.callback = &packet_handler;
     hci_add_event_handler(&hci_event_callback_registration);
@@ -173,24 +172,13 @@ static void phase2(int status){
 
 int main(int argc, const char * argv[]){
 
-	/// GET STARTED with BTstack ///
-	btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
+    btstack_main_config( argc, argv, &transport_config, NULL, NULL );
 
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    const char * pklg_path = "/tmp/hci_dump.pklg";
-    hci_dump_posix_fs_open(pklg_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", pklg_path);
-
-    // pick serial port and configure uart block driver
-    transport_config.device_name = "/dev/tty.usbserial-A96PXBJ7";
     uart_driver = btstack_uart_posix_instance();
 
     // extract UART config from transport config, but disable flow control and use default baudrate
     uart_config.baudrate    = HCI_DEFAULT_BAUDRATE;
-    uart_config.flowcontrol = 0;
+    uart_config.flowcontrol = BTSTACK_UART_FLOWCONTROL_OFF;
     uart_config.device_name = transport_config.device_name;
     uart_driver->init(&uart_config);
 
@@ -204,6 +192,6 @@ int main(int argc, const char * argv[]){
     btstack_chipset_atwilc3000_download_firmware_with_uart(uart_driver, transport_config.baudrate_init, transport_config.flowcontrol, (const uint8_t *) firmware_ble, sizeof(firmware_ble), &phase2);
 
     // go
-    btstack_run_loop_execute();    
+    btstack_run_loop_execute();
     return 0;
 }
diff --git a/port/posix-h4-da14531/Makefile b/port/posix-h4-da14531/Makefile
index 380b80144..cb484ced0 100644
--- a/port/posix-h4-da14531/Makefile
+++ b/port/posix-h4-da14531/Makefile
@@ -11,6 +11,7 @@ CORE += \
 	le_device_db_tlv.c \
 	main.c \
 	btstack_stdin_posix.c \
+	btstack_main_config.c \
 	btstack_signal.c \
 	hci_531_active_uart_460800.c \
 
diff --git a/port/posix-h4-da14531/main.c b/port/posix-h4-da14531/main.c
index aae4ac8d0..7fc4c7571 100644
--- a/port/posix-h4-da14531/main.c
+++ b/port/posix-h4-da14531/main.c
@@ -55,9 +55,7 @@
 #include "btstack_chipset_da145xx.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
-#include "btstack_memory.h"
-#include "btstack_run_loop.h"
-#include "btstack_run_loop_posix.h"
+#include "btstack_main_config.h"
 #include "btstack_signal.h"
 #include "btstack_stdin.h"
 #include "btstack_tlv_posix.h"
@@ -85,11 +83,12 @@ static bool shutdown_triggered;
 int btstack_main(int argc, const char * argv[]);
 
 static hci_transport_config_uart_t transport_config = {
-    HCI_TRANSPORT_CONFIG_UART,
-    460800,
-    0,  // main baudrate
-    0,  // flow control
-    NULL,
+    .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
+    .baudrate_init = 460800,
+    .baudrate_main = 0,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_OFF,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 
 static btstack_packet_callback_registration_t hci_event_callback_registration;
@@ -152,7 +151,7 @@ static void phase2(int status){
     // init HCI
     const hci_transport_t * transport = hci_transport_h4_instance_for_uart(uart_driver);
     hci_init(transport, (void*) &transport_config);
-    
+
     // inform about BTstack state
     hci_event_callback_registration.callback = &packet_handler;
     hci_add_event_handler(&hci_event_callback_registration);
@@ -167,19 +166,7 @@ static void phase2(int status){
 
 int main(int argc, const char * argv[]){
 
-	/// GET STARTED with BTstack ///
-	btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
-
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    const char * pklg_path = "/tmp/hci_dump.pklg";
-    hci_dump_posix_fs_open(pklg_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", pklg_path);
-
-    // pick serial port and configure uart block driver
-    transport_config.device_name = "/dev/tty.usbserial-143342200";
+    btstack_main_config( argc, argv, &transport_config, NULL, NULL );
     uart_driver = btstack_uart_posix_instance();
 
     // extract UART config from transport config, but overide initial uart speed
@@ -198,6 +185,6 @@ int main(int argc, const char * argv[]){
     btstack_chipset_da145xx_download_firmware_with_uart(uart_driver, da145xx_fw_data, da145xx_fw_size, &phase2);
 
     // go
-    btstack_run_loop_execute();    
+    btstack_run_loop_execute();
     return 0;
 }
diff --git a/port/posix-h4-da14581/main.c b/port/posix-h4-da14581/main.c
index 44b14061e..17b70b2b8 100644
--- a/port/posix-h4-da14581/main.c
+++ b/port/posix-h4-da14581/main.c
@@ -55,9 +55,7 @@
 #include "btstack_chipset_da145xx.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
-#include "btstack_memory.h"
-#include "btstack_run_loop.h"
-#include "btstack_run_loop_posix.h"
+#include "btstack_main_config.h"
 #include "btstack_signal.h"
 #include "btstack_stdin.h"
 #include "btstack_tlv_posix.h"
@@ -87,11 +85,12 @@ static btstack_packet_callback_registration_t hci_event_callback_registration;
 int btstack_main(int argc, const char * argv[]);
 
 static hci_transport_config_uart_t transport_config = {
-    HCI_TRANSPORT_CONFIG_UART,
-    115200,
-    0,  // main baudrate
-    1,  // flow control
-    NULL,
+    .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
+    .baudrate_init = 115200,
+    .baudrate_main = 0,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_ON,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 
 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
@@ -118,8 +117,9 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
                     exit(0);
                     break;
                 default:
-                    break;                    
+                    break;
             }
+            break;
         default:
             break;
     }
@@ -150,7 +150,7 @@ static void phase2(int status){
     // init HCI
     const hci_transport_t * transport = hci_transport_h4_instance_for_uart(uart_driver);
     hci_init(transport, (void*) &transport_config);
-    
+
     // inform about BTstack state
     hci_event_callback_registration.callback = &packet_handler;
     hci_add_event_handler(&hci_event_callback_registration);
@@ -165,19 +165,7 @@ static void phase2(int status){
 
 int main(int argc, const char * argv[]){
 
-	/// GET STARTED with BTstack ///
-	btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
-
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    const char * pklg_path = "/tmp/hci_dump.pklg";
-    hci_dump_posix_fs_open(pklg_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", pklg_path);
-
-    // pick serial port and configure uart block driver
-    transport_config.device_name = "/dev/tty.usbmodem1442311";
+    btstack_main_config( argc, argv, &transport_config, NULL, NULL );
     uart_driver = btstack_uart_posix_instance();
 
     // extract UART config from transport config, but overide initial uart speed
@@ -196,6 +184,6 @@ int main(int argc, const char * argv[]){
     btstack_chipset_da145xx_download_firmware_with_uart(uart_driver, da145xx_fw_data, da145xx_fw_size, &phase2);
 
     // go
-    btstack_run_loop_execute();    
+    btstack_run_loop_execute();
     return 0;
 }
diff --git a/port/posix-h4-da14585/main.c b/port/posix-h4-da14585/main.c
index 075102861..46e6b7229 100644
--- a/port/posix-h4-da14585/main.c
+++ b/port/posix-h4-da14585/main.c
@@ -55,9 +55,7 @@
 #include "btstack_chipset_da145xx.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
-#include "btstack_memory.h"
-#include "btstack_run_loop.h"
-#include "btstack_run_loop_posix.h"
+#include "btstack_main_config.h"
 #include "btstack_signal.h"
 #include "btstack_stdin.h"
 #include "btstack_tlv_posix.h"
@@ -85,11 +83,12 @@ static bool shutdown_triggered;
 int btstack_main(int argc, const char * argv[]);
 
 static hci_transport_config_uart_t transport_config = {
-    HCI_TRANSPORT_CONFIG_UART,
-    115200,
-    0,  // main baudrate
-    1,  // flow control
-    NULL,
+    .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
+    .baudrate_init = 115200,
+    .baudrate_main = 0,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_ON,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 
 static btstack_packet_callback_registration_t hci_event_callback_registration;
@@ -152,7 +151,7 @@ static void phase2(int status){
     // init HCI
     const hci_transport_t * transport = hci_transport_h4_instance_for_uart(uart_driver);
     hci_init(transport, (void*) &transport_config);
-    
+
     // inform about BTstack state
     hci_event_callback_registration.callback = &packet_handler;
     hci_add_event_handler(&hci_event_callback_registration);
@@ -167,19 +166,7 @@ static void phase2(int status){
 
 int main(int argc, const char * argv[]){
 
-	/// GET STARTED with BTstack ///
-	btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
-
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    const char * pklg_path = "/tmp/hci_dump.pklg";
-    hci_dump_posix_fs_open(pklg_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", pklg_path);
-
-    // pick serial port and configure uart block driver
-    transport_config.device_name = "/dev/tty.usbmodem1461";
+    btstack_main_config( argc, argv, &transport_config, NULL, NULL );
     uart_driver = btstack_uart_posix_instance();
 
     // extract UART config from transport config, but overide initial uart speed
@@ -198,6 +185,6 @@ int main(int argc, const char * argv[]){
     btstack_chipset_da145xx_download_firmware_with_uart(uart_driver, da145xx_fw_data, da145xx_fw_size, &phase2);
 
     // go
-    btstack_run_loop_execute();    
+    btstack_run_loop_execute();
     return 0;
 }
diff --git a/port/posix-h4-nxp/CMakeLists.txt b/port/posix-h4-nxp/CMakeLists.txt
index 4b19dd9e9..15c52c2cf 100644
--- a/port/posix-h4-nxp/CMakeLists.txt
+++ b/port/posix-h4-nxp/CMakeLists.txt
@@ -43,7 +43,7 @@ include_directories(${BTSTACK_ROOT}/platform/lwip)
 include_directories(${BTSTACK_ROOT}/platform/lwip/port)
 include_directories(${BTSTACK_ROOT}/platform/posix)
 
-file(GLOB SOURCES_SRC       "${BTSTACK_ROOT}/src/*.c" "${BTSTACK_ROOT}/example/*demo_util*.c")
+file(GLOB SOURCES_SRC       "${BTSTACK_ROOT}/src/*.c" "${BTSTACK_ROOT}/example/sco_demo_util*.c")
 file(GLOB SOURCES_BLE       "${BTSTACK_ROOT}/src/ble/*.c")
 file(GLOB SOURCES_BLUEDROID "${BTSTACK_ROOT}/3rd-party/bluedroid/encoder/srce/*.c" "${BTSTACK_ROOT}/3rd-party/bluedroid/decoder/srce/*.c")
 file(GLOB SOURCES_CLASSIC   "${BTSTACK_ROOT}/src/classic/*.c")
diff --git a/port/posix-h4-nxp/main.c b/port/posix-h4-nxp/main.c
index 3caf97167..ab7b9beab 100644
--- a/port/posix-h4-nxp/main.c
+++ b/port/posix-h4-nxp/main.c
@@ -57,8 +57,7 @@
 #include "btstack_audio.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
-#include "btstack_memory.h"
-#include "btstack_run_loop_posix.h"
+#include "btstack_main_config.h"
 #include "btstack_signal.h"
 #include "btstack_stdin.h"
 #include "btstack_tlv_posix.h"
@@ -90,11 +89,12 @@ int btstack_main(int argc, const char * argv[]);
 static void local_version_information_handler(uint8_t * packet);
 
 static hci_transport_config_uart_t transport_config = {
-    HCI_TRANSPORT_CONFIG_UART,
-    115200,
-    0,  // main baudrate
-    1,  // flow control
-    NULL,
+    .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
+    .baudrate_init = 115200,
+    .baudrate_main = 0,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_ON,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 
 static btstack_packet_callback_registration_t hci_event_callback_registration;
@@ -114,7 +114,7 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
                     btstack_tlv_set_instance(tlv_impl, &tlv_context);
 #ifdef ENABLE_CLASSIC
                     hci_set_link_key_db(btstack_link_key_db_tlv_get_instance(tlv_impl, &tlv_context));
-#endif    
+#endif
 #ifdef ENABLE_BLE
                     le_device_db_tlv_configure(tlv_impl, &tlv_context);
 #endif
@@ -128,7 +128,7 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
                     exit(0);
                     break;
                 default:
-                    break;                    
+                    break;
             }
             break;
         default:
@@ -188,28 +188,7 @@ static void nxp_phase2(uint8_t status){
 
 int main(int argc, const char * argv[]){
 
-	/// GET STARTED with BTstack ///
-	btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
-	    
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    const char * pklg_path = "/tmp/hci_dump.pklg";
-    hci_dump_posix_fs_open(pklg_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", pklg_path);
-
-    // pick serial port
-    transport_config.device_name = "/dev/tty.usbserial-A506WORJ"; // DVK-ST60-2230C / 88W8997
-    // transport_config.device_name = "/dev/tty.usbserial-FT1XBGIM";  // murata m.2 adapter
-
-    // accept path from command line
-    if (argc >= 3 && strcmp(argv[1], "-u") == 0){
-        transport_config.device_name = argv[2];
-        argc -= 2;
-        memmove((void *) &argv[1], &argv[3], (argc-1) * sizeof(char *));
-    }
-    printf("H4 device: %s\n", transport_config.device_name);
+    btstack_main_config( argc, argv, &transport_config, NULL, NULL );
 
     uart_driver = btstack_uart_posix_instance();
 
diff --git a/port/posix-h4-zephyr/CMakeLists.txt b/port/posix-h4-zephyr/CMakeLists.txt
index 721d8375b..5051e7aa8 100644
--- a/port/posix-h4-zephyr/CMakeLists.txt
+++ b/port/posix-h4-zephyr/CMakeLists.txt
@@ -97,6 +97,7 @@ target_link_libraries(btstack ${CMAKE_THREAD_LIBS_INIT})
 # get list of examples
 include(../../example/CMakeLists.txt)
 set (EXAMPLES ${EXAMPLES_LE_ONLY} ${EXAMPLES_GENERAL})
+list(REMOVE_ITEM EXAMPLES "mesh_node_demo")
 
 # create targets
 foreach(EXAMPLE ${EXAMPLES})
diff --git a/port/posix-h4-zephyr/main.c b/port/posix-h4-zephyr/main.c
index 89a3d75b9..4be40d1c0 100644
--- a/port/posix-h4-zephyr/main.c
+++ b/port/posix-h4-zephyr/main.c
@@ -50,15 +50,13 @@
 #include <signal.h>
 
 #include "btstack_config.h"
-
+#include "btstack.h"
 #include "ble/le_device_db_tlv.h"
 #include "bluetooth_company_id.h"
 #include "btstack_chipset_zephyr.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
-#include "btstack_memory.h"
-#include "btstack_run_loop.h"
-#include "btstack_run_loop_posix.h"
+#include "btstack_main_config.h"
 #include "btstack_signal.h"
 #include "btstack_stdin.h"
 #include "btstack_tlv_posix.h"
@@ -79,11 +77,12 @@ static btstack_tlv_posix_t   tlv_context;
 static bool shutdown_triggered;
 
 static hci_transport_config_uart_t config = {
-    HCI_TRANSPORT_CONFIG_UART,
-    1000000,
-    0,  // main baudrate
-    1,  // flow control
-    NULL,
+    .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
+    .baudrate_init = 1000000,
+    .baudrate_main = 0,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_ON,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 
 static btstack_packet_callback_registration_t hci_event_callback_registration;
@@ -154,34 +153,13 @@ void hal_led_toggle(void){
 
 int main(int argc, const char * argv[]){
 
-	/// GET STARTED with BTstack ///
-	btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
-
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    const char * pklg_path = "/tmp/hci_dump.pklg";
-    hci_dump_posix_fs_open(pklg_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", pklg_path);
-
-    // pick serial port
-    config.device_name = "/dev/tty.usbmodem0006830491191"; // PCA10056 nRF52840 
-
-    // accept path from command line
-    if (argc >= 3 && strcmp(argv[1], "-u") == 0){
-        config.device_name = argv[2];
-        argc -= 2;
-        memmove((void *) &argv[1], &argv[3], (argc-1) * sizeof(char *));
-    }
-    printf("H4 device: %s\n", config.device_name);
-
+    btstack_main_config( argc, argv, &config, NULL, NULL );
     // init HCI
     const btstack_uart_t * uart_driver = btstack_uart_posix_instance();
-	const hci_transport_t * transport = hci_transport_h4_instance_for_uart(uart_driver);
-	hci_init(transport, (void*) &config);
+    const hci_transport_t * transport = hci_transport_h4_instance_for_uart(uart_driver);
+    hci_init(transport, (void*) &config);
     hci_set_chipset(btstack_chipset_zephyr_instance());
-    
+
     // inform about BTstack state
     hci_event_callback_registration.callback = &packet_handler;
     hci_add_event_handler(&hci_event_callback_registration);
@@ -196,7 +174,7 @@ int main(int argc, const char * argv[]){
     sm_init();
 
     // go
-    btstack_run_loop_execute();    
+    btstack_run_loop_execute();
 
     return 0;
 }
diff --git a/port/posix-h4/main.c b/port/posix-h4/main.c
index f9e5903fd..b6c40c59f 100644
--- a/port/posix-h4/main.c
+++ b/port/posix-h4/main.c
@@ -55,7 +55,6 @@
 
 #include "ble/le_device_db_tlv.h"
 #include "bluetooth_company_id.h"
-#include "btstack_audio.h"
 #include "btstack_chipset_bcm.h"
 #include "btstack_chipset_cc256x.h"
 #include "btstack_chipset_csr.h"
@@ -65,25 +64,19 @@
 #include "btstack_chipset_zephyr.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
-#include "btstack_memory.h"
-#include "btstack_run_loop.h"
-#include "btstack_run_loop_posix.h"
+#include "btstack_main_config.h"
 #include "btstack_signal.h"
 #include "btstack_stdin.h"
 #include "btstack_tlv_posix.h"
 #include "btstack_uart.h"
 #include "classic/btstack_link_key_db_tlv.h"
-#include "hci.h"
-#include "hci_dump.h"
-#include "hci_dump_posix_fs.h"
-#include "hci_transport.h"
 #include "hci_transport_h4.h"
-
+#include "hci.h"
 
 #define TLV_DB_PATH_PREFIX "/tmp/btstack_"
 #define TLV_DB_PATH_POSTFIX ".tlv"
 static char tlv_db_path[100];
-static bool tlv_reset;
+static bool tlv_reset=false;
 static const btstack_tlv_t * tlv_impl;
 static btstack_tlv_posix_t   tlv_context;
 static bd_addr_t             static_address;
@@ -100,9 +93,11 @@ static void local_version_information_handler(uint8_t * packet);
 
 static hci_transport_config_uart_t config = {
     .type = HCI_TRANSPORT_CONFIG_UART,
+    .device_name = "/dev/ttyACM0",
     .baudrate_init = 115200,
     .baudrate_main = 0,
-    .flowcontrol = 1,
+    .flowcontrol = BTSTACK_UART_FLOWCONTROL_OFF,
+    .parity = BTSTACK_UART_PARITY_OFF,
 };
 
 static btstack_packet_callback_registration_t hci_event_callback_registration;
@@ -195,19 +190,12 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
     }
 }
 
-static void trigger_shutdown(void){
-    printf("CTRL-C - SIGINT received, shutting down..\n");
-    log_info("sigint_handler: shutting down");
-    shutdown_triggered = true;
-    hci_power_control(HCI_POWER_OFF);
-    btstack_stdin_reset();
-}
-
 static int led_state = 0;
 void hal_led_toggle(void){
     led_state = 1 - led_state;
     printf("LED State %u\n", led_state);
 }
+
 static void use_fast_uart(void){
     printf("Using 921600 baud.\n");
     config.baudrate_main = 921600;
@@ -287,107 +275,26 @@ static void local_version_information_handler(uint8_t * packet){
     }
 }
 
-static char short_options[] = "+hu:l:rb:";
-
-static struct option long_options[] = {
-        {"help",        no_argument,        NULL,   'h'},
-        {"logfile",    required_argument,  NULL,   'l'},
-        {"reset-tlv",    no_argument,       NULL,   'r'},
-        {"tty",    required_argument,  NULL,   'u'},
-        {"bd-addr", required_argument, NULL, 'b'},
-        {0, 0, 0, 0}
-};
-
-static char *help_options[] = {
-        "print (this) help.",
-        "set file to store debug output and HCI trace.",
-        "reset bonding information stored in TLV.",
-        "set path to Bluetooth Controller.",
-        "set random static Bluetooth address for nRF5340 with PacketCraft Controller.",
-};
-
-static char *option_arg_name[] = {
-        "",
-        "LOGFILE",
-        "",
-        "TTY",
-        "BD_ADDR",
-};
-
-static void usage(const char *name){
-    unsigned int i;
-    printf( "usage:\n\t%s [options]\n", name );
-    printf("valid options:\n");
-    for( i=0; long_options[i].name != 0; i++) {
-        printf("--%-10s| -%c  %-10s\t\t%s\n", long_options[i].name, long_options[i].val, option_arg_name[i], help_options[i] );
-    }
+static void trigger_shutdown(void){
+    printf("CTRL-C - SIGINT received, shutting down..\n");
+    log_info("sigint_handler: shutting down");
+    shutdown_triggered = true;
+    hci_power_control(HCI_POWER_OFF);
+    btstack_stdin_reset();
 }
 
 int main(int argc, const char * argv[]){
 
-    const char * log_file_path = NULL;
+    btstack_main_config( argc, argv, &config, random_address, &tlv_reset );
 
-    // set default device path
-    config.device_name = "/dev/tty.usbmodemEF437DF524C51";
-    int oldopterr = opterr;
-    opterr = 0;
-    // parse command line parameters
-    while(true){
-        int c = getopt_long( argc, (char* const *)argv, short_options, long_options, NULL );
-        if (c < 0) {
-            break;
-        }
-        if (c == '?'){
-            continue;
-        }
-        switch (c) {
-            case 'u':
-                config.device_name = optarg;
-                break;
-            case 'l':
-                log_file_path = optarg;
-                break;
-            case 'r':
-                tlv_reset = true;
-                break;
-            case 'b':
-                sscanf_bd_addr(optarg, random_address);
-                break;
-            case 'h':
-            default:
-                usage(argv[0]);
-                break;
-        }
-    }
-    // reset getopt parsing, so it works as intended from btstack_main
-    optind = 1;
-    opterr = oldopterr;
-
-    /// GET STARTED with BTstack ///
-	btstack_memory_init();
-    btstack_run_loop_init(btstack_run_loop_posix_get_instance());
-	    
-    // log into file using HCI_DUMP_PACKETLOGGER format
-    if (log_file_path == NULL){
-        log_file_path = "/tmp/hci_dump.pklg";
-    }
-    hci_dump_posix_fs_open(log_file_path, HCI_DUMP_PACKETLOGGER);
-    const hci_dump_t * hci_dump_impl = hci_dump_posix_fs_get_instance();
-    hci_dump_init(hci_dump_impl);
-    printf("Packet Log: %s\n", log_file_path);
-
-    printf("H4 device: %s\n", config.device_name);
+    // register callback for CTRL-c
+    btstack_signal_register_callback(SIGINT, &trigger_shutdown);
 
     // init HCI
     const btstack_uart_t * uart_driver = btstack_uart_posix_instance();
 	const hci_transport_t * transport = hci_transport_h4_instance_for_uart(uart_driver);
 	hci_init(transport, (void*) &config);
 
-#ifdef HAVE_PORTAUDIO
-    btstack_audio_sink_set_instance(btstack_audio_portaudio_sink_get_instance());
-    btstack_audio_source_set_instance(btstack_audio_portaudio_source_get_instance());
-#endif
-
     // set BD_ADDR for CSR without Flash/unique address
     // bd_addr_t own_address = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
     // btstack_chipset_csr_set_bd_addr(own_address);
@@ -396,9 +303,6 @@ int main(int argc, const char * argv[]){
     hci_event_callback_registration.callback = &packet_handler;
     hci_add_event_handler(&hci_event_callback_registration);
 
-    // register callback for CTRL-c
-    btstack_signal_register_callback(SIGINT, &trigger_shutdown);
-
     // setup app
     btstack_main(argc, argv);