This is part three of a series on display consistency in embedded systems. The first two parts were technical. This one is about why the technical parts worked. The picture: ATtiny85 thermometer. Neural network inference. QUAD7SHIFT display. Built from datasheets. He had datasheets. No Stack Overflow. No libraries to install. No AI to generate boilerplate. No tutorials that abstracted away the in
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DHCP stands for Dynamic Host Configuration Protocol. Rather than manually assigning IP addresses to devices when they join the network, DHCP does this on its own. Once a new device connects to the network, the DHCP is responsible for assigning in network configuration parameters such as subnet mask, default gateway, DNS servers, and an IP address. This saves time and effort as you do not have some
Zero out of 485. That's what my security scanner scored against MCPTox, a dataset of poisoned tool descriptions pulled from 45 real MCP servers. I had 60 detection rules. I read the source code of 36 open-source MCP security tools to build them. Months of pattern-matching logic. Zero. Not low. Zero. If you use Claude, GPT, or any AI agent that connects to external tools, those tools come with text
Reinforcement Learning (RL) is notoriously difficult to debug. You design a reward function, start the training, and hours later, you find your agent has achieved a high score—not by solving the task, but by exploiting a loophole in your reward logic. This is reward hacking, and it's one of the most common yet underrated bugs in modern AI development. Today, I'm excited to share RewardGuard, a plu
Introduction This article documents a complete, real-world deployment of an Arc blockchain node on AWS EC2. Unlike tutorials that show only the happy path, this guide captures every error encountered, explains why it happened, and shows exactly how it was fixed. Architecture Overview The full stack consists of the following components running in Docker containers on a single EC2 instance: 1.1
"Write a function to fetch the list of users." — same prompt, same codebase. Yesterday: getUsers(). Today: fetchUserList(). Tomorrow: loadAllUsers(). Six months of AI-assisted coding and I kept hitting this wall. My initial reaction was "maybe I need to write better prompts." I wrote better prompts. The functions got slightly better. New inconsistencies appeared elsewhere. The problem wasn't the A
How Cloudflare Built Resilience: Lessons from Their Infrastructure Overhaul When a single misconfiguration can cascade across a global CDN and take down customer traffic, every deployment becomes a high-stakes decision. Cloudflare recently completed a massive push to make their infrastructure fundamentally more resilient—and their approach offers critical lessons for anyone operating at scale. M