license "refactor" :)

zephcore/adapters/ble/ZephyrBLE.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore BLE Adapter — NUS service, advertising, security, TX/RX
  *
  * Security: SMP pairing with SC + MITM + Bonding, DisplayOnly IO (app_passkey).

zephcore/adapters/ble/ZephyrBLE.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore BLE Adapter — NUS service, advertising, security, TX/RX
  */
 #pragma once

zephcore/adapters/board/ZephyrBoard.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrBoard.h"

zephcore/adapters/board/ZephyrBoard.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr MainBoard base - nRF52840 DK and generic
  */
 

zephcore/adapters/clock/ZephyrMillisecondClock.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrMillisecondClock.h"

zephcore/adapters/clock/ZephyrMillisecondClock.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr implementation of MillisecondClock
  */
 

zephcore/adapters/clock/ZephyrRTCClock.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrRTCClock.h"

zephcore/adapters/clock/ZephyrRTCClock.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr software RTC - boot-relative time with settable offset
  */
 

zephcore/adapters/clock/ZephyrRTCDiscover.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * Compact raw-I2C hardware-RTC auto-discovery. See ZephyrRTCDiscover.h.
  *

zephcore/adapters/clock/ZephyrRTCDiscover.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * Boot-time hardware-RTC auto-discovery (compact raw-I2C reader).
  *

zephcore/adapters/datastore/ZephyrDataStore.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr DataStore - LittleFS-backed persistence with optional QSPI flash
  *
  * All platforms use DTS-automounted /lfs.

zephcore/adapters/datastore/ZephyrDataStore.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr DataStore - LittleFS-backed persistence with optional QSPI flash
  *
  * All platforms use DTS-automounted /lfs for identity, prefs, contacts.

zephcore/adapters/gps/ZephyrGPSManager.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr GPS Manager - GNSS power management, fix acquisition, constellation config
  *
  * Event-driven state machine with no polling loops:

zephcore/adapters/gps/ZephyrGPSManager.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr GPS Manager - GNSS power management, fix acquisition, constellation config
  *
  * Event-driven state machine: OFF → ACQUIRING → STANDBY → ACQUIRING → ...

zephcore/adapters/mqtt/ZephyrMQTTPublisher.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrMQTTPublisher — MQTT client thread for the Observer role.
  *
  * Thread flow:

zephcore/adapters/mqtt/ZephyrMQTTPublisher.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrMQTTPublisher — MQTT client thread for the Observer role.
  *
  * Dedicated thread: waits for WiFi ready, resolves broker hostname,

zephcore/adapters/ota/wifi_ota.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * WiFi OTA Firmware Update
  *
  * Starts a WiFi AP + HTTP server for browser-based firmware upload.

zephcore/adapters/ota/wifi_ota.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * WiFi OTA Firmware Update — Public API
  *
  * Starts a WiFi AP + HTTP server for browser-based firmware upload.

zephcore/adapters/radio/LR1110Radio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR1110 hardware hooks for LoRaRadioBase.
  */
 

zephcore/adapters/radio/LR1110Radio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for LR1110/LR1120/LR1121 using Zephyr LoRa driver
  *
  * Thin wrapper around LoRaRadioBase — only hardware-specific hooks.

zephcore/adapters/radio/LR2021Radio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR2021 hardware hooks for LoRaRadioBase.
  */
 

zephcore/adapters/radio/LR2021Radio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for LR2021 using Zephyr LoRa driver
  *
  * Thin wrapper around LoRaRadioBase — only hardware-specific hooks.

zephcore/adapters/radio/LoRaRadioBase.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LoRa radio base class — shared algorithms for all radio adapters.
  */
 

zephcore/adapters/radio/LoRaRadioBase.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LoRa radio base class — shared state and algorithms.
  * Subclasses implement hw*() primitives only.
  */

zephcore/adapters/radio/SX126xRadio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * SX126x hardware hooks for LoRaRadioBase — native Zephyr driver.
  */
 

zephcore/adapters/radio/SX126xRadio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for SX126x (SX1261/SX1262/SX1268) using native Zephyr driver
  */
 

zephcore/adapters/radio/SX127xRadio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * SX127x hardware hooks for LoRaRadioBase — Zephyr loramac-node driver.
  *
  * The SX127x driver (loramac-node/sx127x.c) exposes only the standard

zephcore/adapters/radio/SX127xRadio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for SX127x (SX1272/SX1276/SX1278) using Zephyr loramac-node driver.
  *
  * The SX127x loramac-node driver supports the standard Zephyr LoRa API

zephcore/adapters/radio/lr11xx/lr11xx_hal_zephyr.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR11xx HAL implementation for Zephyr — ZephCore
  */
 

zephcore/adapters/radio/lr11xx/lr11xx_hal_zephyr.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR11xx HAL for Zephyr — ZephCore
  */
 

zephcore/adapters/radio/lr20xx/lr20xx_hal_zephyr.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR20xx HAL implementation for Zephyr - ZephCore
  *
  * Based on Semtech SWDR001 lr20xx_driver and the ZephCore lr11xx HAL.

zephcore/adapters/radio/lr20xx/lr20xx_hal_zephyr.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR20xx HAL implementation for Zephyr - ZephCore
  *
  * Zephyr hardware context for the Semtech lr20xx_driver HAL interface.

zephcore/adapters/radio/radio_common.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Shared constants and utilities for all LoRa radio adapters.
  *
  * Anything duplicated between SX126xRadio and LR1110Radio belongs here.

zephcore/adapters/rng/RNG.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RNG::nextInt - shared implementation
  */
 

zephcore/adapters/rng/ZephyrRNG.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrRNG.h"

zephcore/adapters/rng/ZephyrRNG.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr CSPRNG implementation
  */
 

zephcore/adapters/sensors/ZephyrEnvSensors.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr Environment & Power Sensors
  *
  * Auto-detects available sensors via Zephyr devicetree nodelabels.

zephcore/adapters/sensors/ZephyrEnvSensors.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr Environment & Power Sensors
  *
  * Environment: temperature, humidity, pressure

zephcore/adapters/sensors/ZephyrSensorManager.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Backward-compatibility shim — includes GPS manager + env sensors.
  * All callers can continue using #include "ZephyrSensorManager.h".
  */

zephcore/adapters/transport/LinuxTCPTransport.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore TCP companion transport — drop-in replacement for ZephyrBLE.
  *
  * Implements the exact zephcore_ble_* C API from adapters/ble/ZephyrBLE.h

zephcore/adapters/transport/linux_native_setup.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2026 ZephCore
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * Native-Linux (native_sim) runtime setup.
  *

zephcore/adapters/usb/ZephyrCompanionUSB.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore USB CDC Companion Transport
  *
  * V3-framed USB CDC for companion mode. Extracted from main_companion.cpp.

zephcore/adapters/usb/ZephyrCompanionUSB.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore USB CDC Companion Transport
  *
  * V3-framed USB CDC for companion mode: ISR, ring buffer, frame parsing,

zephcore/adapters/usb/ZephyrUSBCDC.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore — Unified USB CDC ACM init (companion + repeater + observer)
  *
  * See ZephyrUSBCDC.h for the contract. This implementation:

zephcore/adapters/usb/ZephyrUSBCDC.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore — Unified USB CDC ACM init (companion + repeater + observer)
  *
  * Owns the USBD device + CDC ACM class registration, the usbd_msg_callback

zephcore/adapters/wifi/ZephyrWiFiStation.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrWiFiStation — WiFi STA connection manager for the Observer role.
  *
  * Flow:

zephcore/adapters/wifi/ZephyrWiFiStation.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrWiFiStation — WiFi STA connection manager for the Observer role.
  *
  * Connects to a WPA2-PSK (or open) network, obtains a DHCP lease, syncs