Robert Zaage
Linux domain expert from Berlin. I take hardware apart to see how it works and write down what I learn on the way: projects and teardowns, tutorials and notes for the problems that had no good answer online, and small tools that run in the browser.
~/writing/
Is CVE Growth Exponential, and Does Exploitation Follow?
A short study of CVE List, KEV and EPSS data up to October 2026: how fast CVE counts grow, who publishes them, and …
~/projects/
Upgrading an IBM PC/XT Motherboard with 1MB of RAM
How I filled all four RAM banks of an IBM 5155 Portable's 64-256KB XT system board with 41256 chips and replaced the U44 …
~/projects/
L-1 Identity Solutions PIER™ 2.3 Iris Scanner Teardown
A hardware teardown of the SecuriMetrics / L-1 Identity Solutions PIER 2.3, a handheld iris recognition device built …
~/projects/
ATLAS to KSSU Airline Trolley Castor Adapter
I was looking for spare parts for my airline trolley and ended up constructing them myself. This is about the ATLAS and …
- Is CVE Growth Exponential, and Does Exploitation Follow?
A short study of CVE List, KEV and EPSS data up to October 2026: how fast CVE counts grow, who publishes them, and whether exploitation keeps pace.
- Migrating from ZHA to Zigbee2MQTT without re-pairing
Moving 73 Zigbee devices from ZHA to Zigbee2MQTT on the same coordinator without re-pairing: network identifiers, byte order, frame counter and device database.
- L-1 Identity Solutions PIER™ 2.3 Emulation: How the Iris Scan Works
The original PIER 2.3 firmware running on emulated hardware in QEMU: what the FPGA really does, how a scan goes from the camera to an IrisCode, a full enrolment and …
- L-1 Identity Solutions PIER™ 2.3 Software Analysis
An analysis of the CompactFlash card of a PIER 2.3 handheld iris scanner: the boot chain from Embedded DOS to Phar Lap ETS 10.0, the PR167 application and its …
- Modding the Bambu Lab X1C: Adding Ethernet for a 'Poor Man’s X1E'
Wired Ethernet for a Bambu Lab X1C via X1Plus and a USB adapter, and 340–350 °C nozzle temperatures with a resistor in the thermistor line.
- Differences between S1 and S1 Pro based on Pre-Release Firmware V1.0.1.0
What the pre-release firmware of the FLSUN S1 and S1 Pro 3D printers reveals about their AI, print-monitoring and automation features.
- Upgrading an IBM PC/XT Motherboard with 1MB of RAM
How I filled all four RAM banks of an IBM 5155 Portable's 64-256KB XT system board with 41256 chips and replaced the U44 decoder PROM with a GAL16V8 to get 640KB plus up …
- RHEL 8 CUDA Container Install on a DGX H100 Machine
Installing the NVIDIA driver, CUDA, Fabric Manager and the container toolkit on an NVIDIA DGX H100 running RHEL 8.8.