diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..9a8b48d985aaa103ae2899b6f8ae6c5ed7e263f4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,12 @@
+# Environment
+.venv/
+.west/
+
+# West bullshit
+zephyr/
+modules/
+tools/
+bootloader/
+
+# Application artifacts
+build/
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..31d811a391ea684b51aed961d2312b308fc910da
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,24 @@
+BSD 2-Clause License
+
+Copyright (c) 2026, Mitja Felicijan <mitja.felicijan@gmail.com>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..2ae320614febf8e183395245edc6f4b9425407b7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,59 @@
+# Zephyr RTOS ESP32 blinky
+
+## Hardware
+
+- [DFR0478 FireBeetle ESP32](https://si.farnell.com/dfrobot/dfr0478/firebeetle-esp32-iot-mcu-arduino/dp/3517881?CMP=e-email-sys-orderack-GLB)
+
+## System requirements
+
+Other distributions will require different packages.
+
+```sh
+sudo xbps-install -S gcc ninja cmake make python3 python3-devel python3-pip
+sudo xbps-install -S gcc-multilib glibc-devel-32bit libgcc-devel-32bit
+```
+
+## Install toolchain for real hardware
+
+```sh
+mkdir ~/Toolchain
+cd ~/Toolchain
+wget https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.1/zephyr-sdk-1.0.1_linux-x86_64_gnu.tar.xz
+tar xvf zephyr-sdk-1.0.1_linux-x86_64_gnu.tar.xz
+cd zephyr-sdk-1.0.1
+./setup.sh
+```
+
+## Getting started with a project
+
+```sh
+# Clone
+git clone git@github.com:mitjafelicijan/zephyr-esp32-blinky.git
+cd zephyr-esp32-blinky
+
+# Environment
+python -m venv .venv
+source .venv/bin/activate
+pip install --upgrade pip
+pip install west
+west packages pip --install
+
+# Fetch requirements and tooling
+west init
+west update
+west zephyr-export
+
+# Go to application directory
+cd apps/blinky
+
+# Compile and run on host
+make host-build
+make host-run
+
+# Compile and flash ESP32 board
+make esp-build
+make esp-flash
+
+# Serial monitor of ESP32
+make esp-monitor
+```
diff --git a/apps/blinky/CMakeLists.txt b/apps/blinky/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..64e9fd598c749a153a8555f28add27461911c8cc
--- /dev/null
+++ b/apps/blinky/CMakeLists.txt
@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.20.0)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+project(blinky)
+
+target_sources(app PRIVATE src/main.c)
diff --git a/apps/blinky/Makefile b/apps/blinky/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..da37f425b7c8f1d012bfad4e5dc47efd5bffb151
--- /dev/null
+++ b/apps/blinky/Makefile
@@ -0,0 +1,17 @@
+host-build:
+	west build -b native_sim . -p always -- -DZEPHYR_TOOLCHAIN_VARIANT=host
+
+host-run:
+	west build -t run
+
+esp-build:
+	west build -b esp32_devkitc/esp32/procpu . -p always
+
+esp-flash:
+	west flash
+
+esp-monitor:
+	west espressif monitor
+
+clean:
+	rm -rf build/
diff --git a/apps/blinky/boards/esp32_devkitc_esp32_procpu.overlay b/apps/blinky/boards/esp32_devkitc_esp32_procpu.overlay
new file mode 100644
index 0000000000000000000000000000000000000000..77858e858e05ccdb5fdf33dc859b08128f0e1f18
--- /dev/null
+++ b/apps/blinky/boards/esp32_devkitc_esp32_procpu.overlay
@@ -0,0 +1,13 @@
+/ {
+	aliases {
+		led0 = &led0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led0: led_0 {
+			gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
+			label = "Onboard LED";
+		};
+	};
+};
diff --git a/apps/blinky/prj.conf b/apps/blinky/prj.conf
new file mode 100644
index 0000000000000000000000000000000000000000..b26ffcea97b11761fcee527ecd68e0cddd978a05
--- /dev/null
+++ b/apps/blinky/prj.conf
@@ -0,0 +1,8 @@
+CONFIG_BT=n
+CONFIG_WIFI=n
+
+CONFIG_CONSOLE=y
+CONFIG_PRINTK=y
+CONFIG_GPIO=y
+
+CONFIG_ESP32_USE_UNSUPPORTED_REVISION=y
diff --git a/apps/blinky/src/main.c b/apps/blinky/src/main.c
new file mode 100644
index 0000000000000000000000000000000000000000..661edf9311afa4fc953e144f7e07dda00e450117
--- /dev/null
+++ b/apps/blinky/src/main.c
@@ -0,0 +1,34 @@
+#include <zephyr/kernel.h>
+#include <zephyr/sys/printk.h>
+#include <zephyr/drivers/gpio.h>
+
+static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(DT_ALIAS(led0), gpios);
+
+int main(void) {
+	int ret;
+
+	printk("Blinky starting (main thread)...\n");
+
+	if (!gpio_is_ready_dt(&led)) {
+		printk("Error: LED device %s is not ready\n", led.port->name);
+		return 0;
+	}
+
+	ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_INACTIVE);
+	if (ret < 0) {
+		printk("Error %d: failed to configure LED pin\n", ret);
+		return 0;
+	}
+
+	while (1) {
+		printk("LED ON\n");
+		gpio_pin_set_dt(&led, 1);
+		k_msleep(500);
+
+		printk("LED OFF\n");
+		gpio_pin_set_dt(&led, 0);
+		k_msleep(500);
+	}
+
+	return 0;
+}