Embedded-systems engineer from Russia 🇷🇺. I work with ARM single-board computers — Orange Pi Zero 3W (Allwinner A733), Orange Pi 4 Pro and Raspberry Pi — and publish everything I figure out as open, reproducible, step-by-step guides.

• Linux kernel & device-tree work on Allwinner (A733) and Broadcom platforms
• GPU / Vulkan / OpenGL ES enablement (PowerVR BXM-4-64)
• PCIe, NVMe and USB-storage boot — including booting with no SD card at all
• Displays on SBCs: HDMI timing, SPI/DSI panels, touch controllers
• Distro porting & fixes (Debian 12 → 13), kernel modules, packaging
• Portable / battery-powered SBC builds and custom input devices

• orangepi-zero3w-gpu-pcie — OpenGL ES 3.2 + Vulkan 1.3 + PCIe 3.0 working on the Allwinner A733

• orangepi4pro-nvme-boot-no-sd — Orange Pi 4 Pro booting entirely from NVMe with no SD card (patched U-Boot)

• opi-zero3w-m5hub — Zero 3W + M5Stack PaHub: joystick, scroll unit and CardKB as a portable input hub

• orangepi-zero3w-gpu-npu-vpu-debian11 — GPU / VPU / NPU enablement on Debian 11

• orangepi-zero3w-nvme-boot — SD + NVMe hybrid boot over USB (ASM2364 / JMS583)

• opi-zero3w-hid-multitouch-fix — hid-multitouch kernel module fix

  …plus step-by-step guides on HDMI timing, SPI displays (ST7796S), Bluetooth HID, Chromium optimization, CPU-temperature panel, mihomo/VPN setup and the Debian 12 → 13 migration.

• pi4-scroll-unit — M5Stack Scroll Unit on Raspberry Pi 4 as a virtual mouse
• zero2w-terminal-menu — dynamic terminal launcher for Pi Zero 2W (date, time, CPU temperature)
• pi-dual-display — Raspberry Pi 4 dual-display setup (DSI 4.3" + HDMI)
• pi4-overclock-experiments — Raspberry Pi 4 overclocking parameters and measured results
• zero2w-spotpear-3.5inch-lcd-g-st7796s — SpotPear 3.5" SPI display on Pi Zero 2W

• ClawPuter — pixel desktop companion for the M5Stack Cardputer
• meshcore-m5stack-c6l — MeshCore firmware for M5Stack Unit C6L (ESP32-C6 + SX1262)
• deepseek-widget-build, jarvis-chat, mc-featured-skin

• Telegram: @Haidegger22

Open to collaboration on ARM SBC testing, reviews and hardware bring-up.