An overview of all the computing devices I have and use for work and play, including technical details about the individual setups.


The hardware I use has to be powerful but portable enough to not be a millstone round my neck. While a lot of the heavy lifting that I’m doing happens in the cloud these days, there are still plenty of tasks that can’t easily be outsourced and where raw computing power makes a big difference in overall velocity. Hence I’m always looking for ways to improve my setup to allow me to be portable yet have enough processing power in order to be independent from stable internet connectivity or someone else’s computer (the cloud).

cbrspc7: Ryzen 9 5950X mITX Workstation

cbrspc7, my Linux workstation

My main workstation is a custom PC build on a Xtia Xproto-N frame running Gentoo Linux.

Component Details
CPU AMD Ryzen 9 5950X 3.4 GHz
GPU AMD Radeon Pro WX 2100
RAM 2 x 32 GB TEAMGROUP T-Force Xtreem ARGB 3600 MHz CL 18 PC4-28800 (TF13D464G3600HC18JDC01)
Motherboard ASUS ROG Strix X570-I mITX
Storage 2 x 1TB Samsung 980 Pro NVMe Gen4, RAID 1
PSU Corsair SF 600 W 80+ Platinum
Cooling Lian Li Galahad AIO 240, 2 x Cooler Master MF120 Halo
Display LG 32UN500-W 32-inch IPS UHD HDR10, 3840x2160
OS Gentoo Linux
WM Sway
Keyboard See here
Mouse Mad Catz R.A.T. 8+ wired optical mouse

The PC runs kernel >= 5.12.13 with encrypted ZFS in mirror-mode across two 1TB NVMe M.2 SSDs. The GUI uses Sway, a Wayland window manager that I use to render multiple instances of Alacritty and Firefox on a 4K display.

Software Management

I use portage for managing most software that I have installed. If I need something that is not available through the official sources, I either check the overlays or git clone the repo and link its binary manually to /usr/local/bin.


I have a separate list with most of the command line tools that I used.


I don’t use many GUI applications. The main reason for me to use GUI tools is for creative work (like editing photos) and for that I use my MacBook.

Other than that I use the following programs under Linux:

Engineering & Development

The command line is my go-to environment for everything related to engineering and development. I used Sublime Text a lot in the past but I’m slowly making the switch to NeoVim. I don’t use Xcode, VS Code or any other IDE when I’m not forced to do so. On projects in which I did a lot of Qt I used their tool-chain in order to stay sane.

I use containers for many things, hence the Docker is quite an important tool. My local Docker engine is set up to run as a swarm, hence when I need to fire up containers locally, I use docker stack deploy for that.


d3lt4: 15" MacBook Pro Intel Core i9

d4lt4, a 2018 15-inch MacBook Pro

My laptop is a 2018 15" MacBook Pro with 32GB DDR4 RAM, an Intel UHD 630 and an additional AMD Radeon Pro 560X 4GB on-board graphics card. It’s one of those MacBooks without a physical escape key.

Component Details
CPU Intel Core i9 8950HK 2.9 GHz
GPU Intel UHD 630, AMD Radeon Pro 560X 4GB
RAM 32 GB DDR4-2400
Motherboard Apple
Storage 1TB SSD, FileVault encrypted
PSU 87W USB-C Power Adapter
Cooling Forget about it
Display 15.4-inch IPS LED-backlit, 2880x1800
OS macOS
WM macOS
Keyboard Let’s not talk about this
Mouse Apple multi-touch trackpad

For my eyes' health I use a matte anti-glare screen shield which unfortunately makes the already dim display a notch dimmer. Additionally I have black tape glued over my laptop’s camera for privacy reasons.

The MacBook runs the latest macOS release. Only recently I made the switch to macOS 11 Big Sur, after Apple removed their firewall and VPN circumvention hacks. Security, privacy and the overall dissatisfaction with Apple hardware in general – not taking in consideration the new ARM architecture, which is still far from ready for prime time – is what had pushed me to invest effort into switching from macOS back to Linux.

Software Management

I use brew for managing most of the software that’s running on my MacBook.


On macOS I have a tmux session that’s constantly running inside a single instance/window of Alacritty. That’s due to Alacritty not really supporting multiple windows/tabs/panes on macOS.

The shell that I used even before macOS made it the default was and still is Zsh, with Oh My Zsh installed and my own carefully crafted .zshrc

I use to keep my .zshrc functional on both, Linux and macOS, so that I can easily sync my dotfiles between machines.


For the most parts I’m using the Mac when I need to do something that requires a graphical application like an image or video editing software. I’m looking forward to move these tasks to my Linux workstation as well, but so far it has been more easier to continue using them on macOS. I will continue doing so up until the point when the hardware might fail.

However, besides of the crude command line interface I use LaunchBar, because it lets me keep my hands on the keyboard while performing UI-related actions and tasks. LaunchBar brings a large set of functions and allows for easy extensibility. Other UI programs and little helpers that I use include:

  • 1Password, for storing passwords et al.
  • iStat Menus, for monitoring the MacBook’s crappy thermals
  • Ledger Live, for those coins
  • Little Snitch, because I don’t like apps to send weird stuff into the interwebs interface is a PITA
  • Messages, for communicating with business contacts – no WhatsApp nor Telegram here
  • Monodraw, for drawing fancy ASCII documentation
  • Music, because I decided to have a look at Spotify’s competition
  • Numi, for notes in which I need to do some math
  • OpenEmu, for the little time I don’t spend outside and/or working on things
  • Paw, for testing and debugging those APIs
  • Resilio Sync, for use with my very own encrypted storage, will move to Syncthing as soon as there is selective sync and an iOS client available
  • SmartScope, for hours of SPI-debugging fun
  • Steam, for Cities: Skylines and Parkitect
  • TimeMachineEditor, for taming TimeMachine git commands.
  • WireGuard, for my own VPNs to all sorts of servers and devices
  • xbar, for having zeit in my macOS menu bar
  • ZeroNet, for the decentralized net

Creative Work

I stay miles away from Adobe software and successfully got rid of the very last Adobe program I was using, which was Lightroom Classic. For the little creative work that I’m doing, I’m using the following programs:

I really don’t do much creative work, though. It’s more of a hobby. The reason I keep things like Pixelmator around is for the times when people send me PSDs or when I really do need to draw a few things on my own.

The backside of my MacBook

h4nk4: Custom Ryzen 7 2700 mITX Ultra-Portable Data Center

h4nk4, my Ultra-Portable Data Center

h4nk4 is an ultra-portable data center that offers a fully-encrypted network attached storage as well as KVM hosting. It runs on NixOS and has 5 GBit NICs.

Component Details
CPU AMD Ryzen 7 2700 3.2 GHz
RAM 2 x 16 GB Corsair Vengeance LPX 2666 MHz CL 16 PC4-21300 (CMK32GX4M2A2666C16)
Motherboard ASUS ROG Strix X470-I mITX
Storage 2 x 512GB Samsung 970 Pro NVMe Gen3, RAID 1; 4 x 4TB 2.5" Seagate Barracuda, RAID 5
PSU Corsair SF 450 W 80+ Platinum
Cooling NZXT Kraken X42 AIO
Display -
OS NixOS Linux
WM -
Keyboard -
Mouse -

The case is a custom designed, 3D printed enclosure that was built with portability in mind. h4nk4 has no HIDs nor a GPU – the Ryzen is not an APU – and is therefor configured to use a LUKS encryption key on a USB stick, that can simply be unplugged in order to make the device useless.

More info about what this device does, why and how I designed and built it can be found here.

h4nk4, my Ultra-Portable Data Center

r0n1n: RockPi 4A 4 GB

r0n1n, RockPi 4A 4GB

This setup is more of an experiment of ultra-portability of the desktop, rather than a real alternative to a laptop or PC.

Component Details
CPU Rockchip RK3399 64 Bit 6-Core (dual Cortex-72 1.8 GHz, quad Cortex-A53 1.4 GHz)
GPU Mali T860MP4
RAM 4 GB LPDDR4 3200 MHz
Motherboard -
Storage 512 GB WD Black NVMe Gen3
PSU USB-C PD 2.0 9V/2A, 12V/2A, 15V/2A, 20V/2A
Cooling Radxa RockPi 4 heatsink
Display UPERFECT 15.6-inch portable UHD
OS Manjaro Linux RockPi 4 Sway Edition
WM Sway
Keyboard Vinpok Taptek
Mouse Mad Catz R.A.T. 8+ wired optical mouse

The experiment was partially successful, with the RockPi 4 performing a lot better than e.g. the Raspberry Pi 4B and hence offering a viable solution for an ultra-portable desktop. That said, the devices wasn’t able to use the full 4K resolution of the display, losing one advantage it would have had over most Linux-capable ultra-books.

More info about this setup can be found here.

r0n1n, RockPi 4A 4GB

a0i: Linksys WRT3200ACM

a0i, Linksys WRT3200ACM

r0n1n is a computer running OpenWRT (Linux) and bridging my internal network of devices with the outside world.

Component Details
CPU Marvell Armada 395 88F6925 1.8 GHz
Motherboard -
Storage 256 MB Flash
PSU Power adapter, 12V/3A
Cooling Heatsink
Display -
WM -
Keyboard -
Mouse Mad Catz R.A.T. 8+ wired optical mouse

Unlike the majority of reviews online by people who struggled to properly set up and run the Linksys, I have experienced no issues with it whatsoever. That said, I’m only running the 5 GHz band for WiFi and all devices that have a NIC are using a wired connection.

k3yb0w: Raspberry Pi Zero W

k3yb0w, Raspberry Pi Zero W with a Pimoroni Keybow HAT, running the Kiwi firmware

This Raspberry Pi Zero W has a Pimoroni Keybow attached to it and runs the Kiwi firmware that allows it to connect to any 2.4 GHz WiFi and act as a wireless controller for all sorts of things.

Component Details
CPU Broadcom BCM2835
RAM 512 MB
Motherboard -
Storage 64 GB Samsung Evo Plus micro SD
PSU Micro USB, 5V/2A
Cooling -
Display -
OS Kiwi / Nerves
WM -
Keyboard Pimoroni Keybow
Mouse -

I’m using this device to control everything that has an API (like IoT lights) as well as OBS Studio, which it can interface with since Kiwi 1.0.2.

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