diff --git a/mutekh/boards/Makefile b/mutekh/boards/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..54d17b49a29fda98aada412d1d47708026329a00
--- /dev/null
+++ b/mutekh/boards/Makefile
@@ -0,0 +1,3 @@
+ifneq ($(CONFIG_BMAAA_BOARD),)
+objs += $(CONFIG_BMAAA_BOARD).o
+endif
diff --git a/mutekh/boards/bmaaa.build b/mutekh/boards/bmaaa.build
new file mode 100644
index 0000000000000000000000000000000000000000..9231eb49d2db7f5fa21b74108c1df7e3273065b3
--- /dev/null
+++ b/mutekh/boards/bmaaa.build
@@ -0,0 +1,12 @@
+%section bmaaa-pinky
+  %inherit nrf51-xxac
+
+  CONFIG_BMAAA
+  CONFIG_BMAAA_BOARD pinky
+
+  CONFIG_DRIVER_NRF5X_SPI
+  CONFIG_DRIVER_NRF5X_CLOCK
+  CONFIG_DRIVER_NRF5X_CLOCK_LFRC_CAL
+  CONFIG_DRIVER_NRF5X_TIMER
+  CONFIG_DRIVER_NRF5X_PRINTK_PIN 19
+%common
diff --git a/mutekh/boards/bmaaa.config b/mutekh/boards/bmaaa.config
new file mode 100644
index 0000000000000000000000000000000000000000..1d9a8f91d64fcb64930c68c5277caa085bb16fb6
--- /dev/null
+++ b/mutekh/boards/bmaaa.config
@@ -0,0 +1,10 @@
+%config CONFIG_BMAAA
+  desc BMAAA module
+  module bmaaa
+%config end
+
+%config CONFIG_BMAAA_BOARD
+  desc Board definition filename
+  flags value
+  parent CONFIG_BMAAA
+%config end
diff --git a/mutekh/boards/pinky.c b/mutekh/boards/pinky.c
new file mode 100644
index 0000000000000000000000000000000000000000..3c9a5d4ed7930cbe2ac5dc1c4d94ebdfa6621c79
--- /dev/null
+++ b/mutekh/boards/pinky.c
@@ -0,0 +1,75 @@
+/*
+    This file is part of MutekH.
+
+    MutekH is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Lesser General Public License as
+    published by the Free Software Foundation; version 2.1 of the
+    License.
+
+    MutekH is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this program.  If not, see
+    <http://www.gnu.org/licenses/>.
+
+    Copyright Nicolas Pouillon <nipo@ssji.net> (c) 2016
+*/
+
+#include <device/resources.h>
+#include <device/class/iomux.h>
+#include <device/class/i2c.h>
+#include <device/class/uart.h>
+#include <device/class/gpio.h>
+#include <device/class/cmu.h>
+#include <arch/nrf5x/ids.h>
+
+DEV_DECLARE_STATIC(clock_dev, "clock", 0, nrf5x_clock_drv,
+  // Muxes
+  DEV_STATIC_RES_CMU_MUX(NRF_CLOCK_OSC_HFXO, NRF_CLOCK_SRC_HFCLK, 0b100, 1, 1),
+  DEV_STATIC_RES_CMU_MUX(NRF_CLOCK_OSC_HFRC, NRF_CLOCK_SRC_HFCLK, 0b011, 1, 1),
+  DEV_STATIC_RES_CMU_MUX(NRF_CLOCK_OSC_LFRC, NRF_CLOCK_SRC_LFCLK, 0b111, 1, 1),
+
+  // Oscillators
+  DEV_STATIC_RES_CMU_OSC_ACC(NRF_CLOCK_OSC_LFRC, 0b110, 32768, 1, 7, 18), // 246ppm
+  DEV_STATIC_RES_CMU_OSC_ACC(NRF_CLOCK_OSC_LFRC, 0b001, 32768, 1, 2, 25), // 2%
+  DEV_STATIC_RES_CMU_OSC_ACC(NRF_CLOCK_OSC_HFXO, 0b111, 32000000, 1, 7, 15), // 31ppm
+  DEV_STATIC_RES_CMU_OSC_ACC(NRF_CLOCK_OSC_HFRC, 0b111, 16000000, 1, 2, 25), // 2%
+
+  NRF_STATIC_RES_PERIPHERAL_MEM(NRF5X_CLOCK),
+  DEV_STATIC_RES_DEV_ICU("/cpu"),
+  DEV_STATIC_RES_IRQ(0, NRF5X_CLOCK, DEV_IRQ_SENSE_HIGH_LEVEL, 0, 1),
+
+  NRF_STATIC_RES_PERIPHERAL_MEM(NRF5X_TEMP),
+  DEV_STATIC_RES_IRQ(1, NRF5X_TEMP, DEV_IRQ_SENSE_HIGH_LEVEL, 0, 1),
+  );
+
+#if defined(CONFIG_DRIVER_NRF5X_UART)
+
+DEV_DECLARE_STATIC(uart_dev, "uart0", 0, nrf5x_uart_drv,
+                   NRF_STATIC_RES_PERIPHERAL_MEM(NRF5X_UART0),
+                   DEV_STATIC_RES_DEV_ICU("/cpu"),,
+                   DEV_STATIC_RES_IRQ(0, NRF5X_UART0, DEV_IRQ_SENSE_HIGH_LEVEL, 0, 1)
+                   DEV_STATIC_RES_DEV_IOMUX("/gpio"),
+                   DEV_STATIC_RES_UART(1000000, 8, DEV_UART_PARITY_NONE, 1, 0, 0),
+                   DEV_STATIC_RES_IOMUX("tx", 0, 19, 0, 0),
+                   DEV_STATIC_RES_IOMUX("rx", 0, 20, 0, 0)
+                   );
+
+#endif
+
+#if defined(CONFIG_DRIVER_NRF5X_SPI)
+
+DEV_DECLARE_STATIC(spi_dev, "spi0", 0, nrf5x_spi_drv,
+                   NRF_STATIC_RES_PERIPHERAL_MEM(NRF5X_SPI1),
+                   DEV_STATIC_RES_DEV_ICU("/cpu"),
+                   DEV_STATIC_RES_IRQ(0, NRF5X_SPI1, DEV_IRQ_SENSE_HIGH_LEVEL, 0, 1),
+                   DEV_STATIC_RES_DEV_IOMUX("/gpio"),
+                   DEV_STATIC_RES_IOMUX("clk", 0, 29, 0, 0),
+                   DEV_STATIC_RES_IOMUX("mosi", 0, 28, 0, 0),
+                   DEV_STATIC_RES_IOMUX("miso", 0, 27, 0, 0)
+                   );
+
+#endif
diff --git a/mutekh/common.build b/mutekh/common.build
new file mode 100644
index 0000000000000000000000000000000000000000..e9ef5130b64423276e353c74f1441e73ebdd3314
--- /dev/null
+++ b/mutekh/common.build
@@ -0,0 +1,81 @@
+CONFIG_HEXO_CPU_STACK_SIZE 0x600
+
+CONFIG_COMPILE_PIC undefined
+CONFIG_COMPILE_FRAMEPTR undefined
+CONFIG_COMPILE_MERGE
+CONFIG_COMPILE_OPTIMIZE s
+
+%include boards/bmaaa.build
+
+%section nrf5?-*
+  CONFIG_DRIVER_NRF5X_CLOCK
+  CONFIG_DRIVER_NRF5X_RTC
+  CONFIG_DRIVER_NRF5X_PERSIST
+  CONFIG_DRIVER_NRF5X_AES
+  CONFIG_DRIVER_NRF5X_AES_RANDOM
+  CONFIG_DRIVER_NRF5X_RNG
+  CONFIG_DRIVER_NRF5X_NVMC
+  CONFIG_DRIVER_NRF5X_GPIO
+  CONFIG_MUTEK_PRINTK_ADDR 0x40002000
+
+  %subsection ble-*
+    CONFIG_DRIVER_NRF5X_AES_CCM
+    CONFIG_DRIVER_NRF5X_BLE
+#    CONFIG_DRIVER_BLE_RADIO
+    CONFIG_MUTEK_KROUTINE_IDLE
+    CONFIG_MUTEK_KROUTINE_SCHED
+  %end
+
+%section nrf5x-ble-radio
+  CONFIG_DRIVER_NRF5X_BLE_RADIO
+
+%section ble-peripheral
+  CONFIG_NET
+  CONFIG_BLE
+  CONFIG_BLE_PERIPHERAL
+  CONFIG_BLE_GATTDB_INCLUDE
+
+%section ble-central
+  CONFIG_NET
+  CONFIG_BLE
+  CONFIG_BLE_CENTRAL
+
+%section ble-security
+  CONFIG_BLE_SECURITY_DB
+  %inherit ble-crypto
+
+%section ble-crypto
+  CONFIG_BLE_CRYPTO
+  CONFIG_DRIVER_NRF5X_PERSIST
+  CONFIG_DRIVER_NRF5X_AES
+  CONFIG_DRIVER_NRF5X_AES_RANDOM
+  CONFIG_DRIVER_NRF5X_AES_CCM
+  CONFIG_DRIVER_NRF5X_RNG
+  CONFIG_DRIVER_NRF5X_NVMC
+
+%section ble-debug
+  CONFIG_DRIVER_NRF5X_BLE_DEBUG
+
+%section printk
+  CONFIG_DRIVER_NRF5X_PRINTK
+  CONFIG_MUTEK_PRINTK_HEXDUMP
+
+%section rtt
+  CONFIG_DRIVER_RTT
+  CONFIG_DRIVER_RTT_PRINTK
+  CONFIG_MUTEK_PRINTK_HEXDUMP
+
+%section uart-shell
+  CONFIG_DRIVER_NRF5X_UART
+  CONFIG_DEVICE_UART
+  %inherit shell
+
+%section rtt-shell
+  CONFIG_DRIVER_CHAR_RTT
+  CONFIG_DRIVER_CHAR_RTT_RX_BUFFER_SIZE 128
+  %inherit shell
+
+%common
+
+%include arch/arch.build
+%include scripts/options.build
diff --git a/mutekh/hello/Makefile b/mutekh/hello/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..ee7694b3a3dc63465e13f32023f2425ddc58b9f7
--- /dev/null
+++ b/mutekh/hello/Makefile
@@ -0,0 +1 @@
+objs = hello.o
diff --git a/mutekh/hello/config b/mutekh/hello/config
new file mode 100644
index 0000000000000000000000000000000000000000..e38e719667290e48bd9e716ea9b501934c10da15
--- /dev/null
+++ b/mutekh/hello/config
@@ -0,0 +1,8 @@
+%set OUTPUT_NAME hello
+%append MODULES $(OUTPUT_NAME):$(CONFIGPATH)
+
+%include common.build
+
+CONFIG_LICENSE_APP_BSD
+CONFIG_APP_START
+
diff --git a/mutekh/hello/hello.c b/mutekh/hello/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..5d2f39c13fd9d5b9b162ac4326506ba8c2f6e006
--- /dev/null
+++ b/mutekh/hello/hello.c
@@ -0,0 +1,88 @@
+#include <mutek/startup.h>
+#include <mutek/thread.h>
+#include <mutek/printk.h>
+#include <device/class/gpio.h>
+#include <device/class/timer.h>
+
+#define RS 18
+#define D7 13
+#define BACK 12
+#define E 17
+
+#define FIRST 12
+#define LAST 18
+
+static const uint64_t nibble_rev = 0xf7b3d591e6a2c480;
+
+struct device_gpio_s gpio;
+struct device_timer_s timer;
+dev_timer_delay_t msec;
+
+static void lcd_put(bool_t rs, uint8_t byte)
+{
+  uint8_t val;
+
+  DEVICE_OP(&gpio, set_output, RS, RS,
+            rs ? dev_gpio_mask1 : dev_gpio_mask0,
+            rs ? dev_gpio_mask1 : dev_gpio_mask0);
+
+  val = nibble_rev >> ((byte >> 4) * 4);
+  DEVICE_OP(&gpio, set_output, D7, D7 + 3, &val, &val);
+
+  DEVICE_OP(&gpio, set_output, E, E, dev_gpio_mask0, dev_gpio_mask0);
+  dev_timer_wait_delay(&timer, msec, 0);
+  DEVICE_OP(&gpio, set_output, E, E, dev_gpio_mask1, dev_gpio_mask1);
+  dev_timer_wait_delay(&timer, msec, 0);
+
+  val = nibble_rev >> ((byte & 0xf) * 4);
+  DEVICE_OP(&gpio, set_output, D7, D7 + 3, &val, &val);
+
+  DEVICE_OP(&gpio, set_output, E, E, dev_gpio_mask0, dev_gpio_mask0);
+  dev_timer_wait_delay(&timer, msec, 0);
+  DEVICE_OP(&gpio, set_output, E, E, dev_gpio_mask1, dev_gpio_mask1);
+  dev_timer_wait_delay(&timer, msec, 0);
+}
+
+static void lcd_put_string(char *str)
+{
+    while (*str)
+        lcd_put(1, *str++);
+}
+
+static CONTEXT_ENTRY(lcd_hello)
+{
+  lcd_put(0, 0x33);
+  dev_timer_wait_delay(&timer, msec * 4, 0);
+  lcd_put(0, 0x33);
+  dev_timer_wait_delay(&timer, msec * 4, 0);
+  lcd_put(0, 0x32);
+  lcd_put(0, 0x28);
+  lcd_put(0, 0x08);
+  lcd_put(0, 0x01);
+  lcd_put(0, 0x06);
+  lcd_put(0, 0x0c);
+
+  lcd_put_string("Hello,");
+  lcd_put(0, 0xc0);
+  lcd_put_string("world !");
+}
+
+void app_start()
+{
+  error_t err;
+  printk("Hello World!\n");
+
+  err = device_get_accessor_by_path(&gpio.base, NULL, "/gpio*", DRIVER_CLASS_GPIO);
+  assert(!err);
+
+  err = device_get_accessor_by_path(&timer.base, NULL, "/rtc*", DRIVER_CLASS_TIMER);
+  assert(!err);
+
+  DEVICE_OP(&gpio, set_output, FIRST, LAST, dev_gpio_mask1, dev_gpio_mask1);
+  DEVICE_OP(&gpio, set_output, BACK, BACK, dev_gpio_mask0, dev_gpio_mask0);
+  DEVICE_OP(&gpio, set_mode, FIRST, LAST, dev_gpio_mask1, DEV_PIN_PUSHPULL);
+
+  dev_timer_init_sec(&timer, &msec, 0, 1, 1000);
+
+  thread_create(lcd_hello, 0, NULL);
+}