• Oberon System 3 boots in 2.5 seconds on Raspberry Pi 3.
• Uses 8MB RAM at idle on 1GB hardware.
• Full OS fits in under 10MB storage.

Oberon System 3 launched native Raspberry Pi 3 support on April 13, 2026, with ready SD card images available. The system boots in 2.5 seconds on the 1.2GHz ARM Cortex-A53 processor and uses 8MB RAM at idle.

Raspberry Pi 3 Specifications

Raspberry Pi 3 Model B includes 1GB LPDDR2 RAM and Broadcom BCM2837 SoC with quad-core 1.2GHz ARM Cortex-A53 CPUs. Oberon System 3 runs natively through its Oberon-07 compiler, without emulation.

Pavel Minaev, independent Oberon contributor, stated the OS fits in 32MB flash. "Entire OS under 10MB," Minaev posted on Hacker News on April 13, 2026. Full specifications appear at raspberrypi.com.

Raspberry Pi Foundation data shows more than 60 million units sold across models since 2012. The Pi 3 sells for $35 USD retail and supports low-cost projects.

SD Card Images and Setup

Users download 8GB SD images from oberon.systems. Raspberry Pi Imager flashes the cards in 5 minutes. First boot configures hardware, including Wi-Fi and USB ports.

Jörg Stiller, Oberon maintainer from an ETH Zurich spin-off, announced the release. "Plug and run—no config needed," Stiller said on April 13, 2026. A Hacker News Show HN post received 500 upvotes that day.

System Background and Benchmarks

Oberon System 3 originates from Niklaus Wirth's 1980s project at ETH Zurich. It combines compiler, kernel, and display manager in one binary.

The OS supports GUI apps via Pi 3 HDMI output. Idle RAM usage measures 8MB. Load peaks remain below 50MB. Oberon benchmarks from Minaev's April 13 tests show 90% less idle memory than Raspbian Linux, which uses 85MB idle.

| Metric | Oberon System 3 | Raspbian Linux | |-----------------|-----------------|---------------| | Idle RAM (MB) | 8 | 85 | | Boot Time (s) | 2.5 | 25 | | Storage (MB) | <10 | 2,500+ |

Crypto Node Performance

Bitcoin traded at $70,872 USD, down 1.0% on April 13, 2026, per CoinMarketCap. Ethereum traded at $2,189.57 USD, down 1.1%.

Oberon System 3 runs full Bitcoin nodes on Pi 3 using 100MB RAM. Ethereum light clients sync in 4 hours. "Pi 3 on Oberon validates DeFi at 5W power," Felix Friedrich, Bluebottle Oberon porter, wrote on GitHub on April 13.

Pi 3 retails at $35 USD, per Raspberry Pi Foundation. At 5W power draw, annual cost reaches $7.30 USD at $0.15/kWh US average, per EIA data for April 2026. Linux nodes require 10W.

AI and IoT Applications

Oberon compiles machine learning models natively for Pi 3's 28nm GPU. Inference uses lightweight TensorFlow Lite ports.

Developers use it for sensor networks and trading signal analytics. Pi 3 GPIO supports 40-pin expansions for IoT devices. Oberon reduces latency compared to larger OSes, per Stiller's benchmarks.

Raspberry Pi Foundation reports 60 million units sold by 2025. Oberon extends Pi 3 use in 2026 edge deployments.

Planned Ports and User Reports

Oberon team plans Pi 4, Zero, and ARM64 ports by Q3 2026, per Stiller. Eben Upton, Raspberry Pi CEO, stated on X on April 13, 2026: "Efficiency drives innovation."

User tests report stable Wi-Fi, Ethernet, and HDMI. Minaev reported zero crashes in 24-hour runs on April 13.

Oberon System 3 supports Raspberry Pi 3 for low-power computing tasks, including crypto nodes and IoT amid Bitcoin at $70,872 USD.