Writing
Infrastructure, networking, and the long arc from the early internet to cryptographic identity.
- May 2026
The Identity Gap in eBPF — and How to Close It
eBPF is the most powerful enforcement tool in Linux. It runs below every application, every container, every platform. It has one problem: no one knows who authorized a program to run.
- May 2026
Passkeys Are a Public Key. Here's What's Missing.
Passkeys are a huge step forward from passwords — but they still depend on Apple or Google for recovery. Here's the critical difference between a passkey and a self-sovereign key.
- Mar 2024
CWDM Multiplexing for Last-Mile Fiber: A Neighborhood Deployment Plan
A design for delivering multi-gigabit broadband to residential neighborhoods using Coarse Wavelength Division Multiplexing — serving multiple premises over a single fiber strand without active electronics in the field.
- Nov 2017
Yet Another Explanation of What is Cloud Native
Cloud Native software gets its configuration dynamically. A plain-language explanation of IaaS, PaaS, CaaS, microservices, and what "cloud native" actually means for reliability.
- Jul 2016
OpenStack All-in-One Host (AIO)
Installing OpenStack entirely on a single KVM host using Fuel on Ubuntu 16.04 — a virtualized all-in-one reference configuration for first-time installers.
- Apr 2016
The Getnet Plan
A white paper on using passive Coarse Wave Division Multiplexing to bring competitive broadband to every home — treating fiber like roads and water. Originally written in 2009.
- Mar 2016
GhettoStack: Home Install of OpenStack with Fuel
Full OpenStack deployment on used Dell R710 servers and a retired Cisco 3548 switch — because production-grade infrastructure should not require a data center budget.