Projects and Playgrounds

Trusted Systems / mandatory access control (MAC)

SELinux - my way to go (since 2002)

grsecurity - how to learn to swim (before 2002)

High Assurance Systems

capability-based security access control microkernel L4

Digirule 2U: The Digirule 2 is essentially an 8-bit programmable binary computer of the 1970’s – built into a 20cm ruler.

dgtools: dgtools is a complete toolkit for developing software for the Digirule series

RC2014 is a simple 8 bit Z80 based modular computer

SC111 is a Z180 CPU module designed for the RC2014 bus. HW  BIOS  BIOS  CP/M  (SC119 Mem-Module needed)

ESP8266 Wifi Module -tbd- FPGA with 20K Logic Units LUT4

Tang Primer 20K is a core board with DDR3 sodimm shape based on GW2A-LV18PG256C8/I7 as the main chip, with 2 ext-boards are prepared, the Dock and the Lite.

BLAI-100 AI hardware accelerator (100GOPS)

Sipeed M1s Dock

Convenient keyboard in retro style

the daily workhorse: Keychron K3D3

a bit of extravagance: Keychron K8 Pro (K8P-J1)

Mojo is a new programming language that bridges the gap between research and production by combining the best of Python syntax with systems programming and metaprogramming.

Colossus (*reminiscence)

My workstation for ML/ AI and Data Science experiments: AMD Ryzen 9 7900X3D 12-Core (Zen4, 2x32MB + 1x64MB 3D L3 Cache), 128GB ECC DDR5, 1TB PCIe NVMe, gentoo linux

It's purely SOLAR driven!!


some general information on RISC-V / RISC-V International

Pineapple ONE: awesome project on doing a 32 bit RISC-V CPU at home

Star64: Model-A 8GB Single Board Computer, ordered 2023-05-17 - arrived 2023-06-08

Linux on awkward hardware

Dmitry Grindberg's 8bit ATmega

Colour Maximite 2

my own: Generation 2 - The Colour Maximite 2 is a small self contained computer inspired by the home computers of the early 80's - ARM Cortex-M7 32-bit RISC processor running at 480MHz / VGA output at resolutions up to 1920x1080 pixels with up to 16 million colours

whishlist: Wifi Modem incl. TCP/IP, connected to COM - i.e. ESP8266 like NodeMcu

Tube Tester

At the center of it all

LUX server

Discontinued Projects

Alpha AXP 21164 @533MHz running RedHat Linux

Alpha AXP 21066 @166MHz running RedHat Linux

2 x Dual Core Itanium 2 @1.6GHz, 96GB RAM at HPE Integrity rx4640 running Gentoo Linux

HPE ProLiant DL980 Gen7 10x8 Core Xeon, 1024GB RAM / 1500 Watt idle ... running Gentoo Linux NUMA-aware kernel nicely

SCO OpenServer + X11 on AMD Am486DX4 / 32MB / 40MB (!) HDD

Novell NetWare 2.2 / 3.x / 4.x on AMD 386 / 486

Slackware since 1993 (24x 3.5" Floppy Disks) on i386SX / i486 / Cyrix / NeXGen / AMD 5x86 / AMD K5 / AMD K6-III / IBM 486 / + IIT FPUs

RC5-64 dnetc on 12x AMD Duron 1400 MHz + 20x Pentium II 233 MHz