Thoughts on technology, infrastructure, and AI
The planned 200Gb/s switch never happened. Instead we cabled four DGX Sparks directly to each other in a closed ring, pointed a setup script at it, and ended up serving a 552-billion-parameter model from the home office for under AUD $50,000.
Thirty years of copying files with scp and I only just found the -3 flag. How scp rides on ssh, the flags worth knowing, ssh-agent caching and chaining, and why the same features deserve tight limits on production servers.
From 24GB Blackwell workstation cards to one 128GB DGX Spark, then two Sparks and a QSFP cable: running DeepSeek-V4-Flash-Vision-Exp locally, understanding vLLM, and planning the next step with a 200Gb/s switch.
Every night of our outback trip I sent a handful of photos and a few sentences to my AI agent over Starlink, and woke up to a published, fact-checked diary entry. Here is how that workflow actually went, including the real prompts, the corrections, and the parts that went wrong.
Three days at BSides Canberra 2026: AI-driven vulnerability research, a no-AI CTF, a Tron-themed Black Bag challenge, and a proud dad moment at the soldering iron.