Computing
Non-AI computing: networks, servers, hardware, software engineering, and digital security and privacy.
#4361: LoRa vs ZigBee for a Flood-Prone Basement
Designing a reliable smart home sensor network through concrete floors for a seasonal New England home.
#4360: How Long Will Your ESP32 Sensor Actually Run on a Single 18650?
Walk through the real math behind ESP32 battery life — from sleep current to LoRa retransmissions in concrete garages.
#4358: How Spy Hardware Engineers Actually Get Recruited
The hidden pipeline from soldering irons and DEF CON villages to covert listening devices.
#4353: GPIO Pins: Your SBC's Hidden Superpower
What GPIO pins actually do, where the power limits are, and which sensors work on each side of the divide.
#4352: What If Banks Just Handled the Plumbing?
What if banks stopped trying to be good at customer experience and just handled the settlement infrastructure?
#4344: Freeing IR Codes from Broadlink's Walled Garden
Dump the firmware, flash Tasmota-IR, and take control of your own IR codes.
#4343: AliExpress Checkout: Dollars vs Shekels
Which currency should you pick at checkout? The hidden fees of DCC, PayPal, and credit cards explained.
#4340: Building an AI Tutor That Teaches You to Code Without Writing It For You
How to build an AI tutor that assigns projects, reviews code, and remembers what you've learned — without writing your code for you.
#4339: How Text Survives a Tunnel: Offline Queueing Deep Dive
What happens when you tap send in a tunnel? The browser, service worker, and backend dance that makes tiny payloads survive offline.
#4337: The Belt as Brain: Externalizing Memory with EDC
How to carry daily essentials without looking tactical — and why it works as a cognitive prosthetic for ADHD.
#4334: 21 Workshop Chemicals: What Actually Works
Penetrating oils, contact cleaners, and the three solvents hiding in different cans. What to keep and what to toss.
#4330: Drilling Right: Bits, Concrete & Israeli DIY
Which drill bits to stock, duplicate, and avoid for Israeli concrete, tile, and metal — with specific quantities.
#4321: Reverse Engineering Android APKs in 2026
From Ghidra to Frida: the modern toolkit for analyzing bundled Android apps.
#4319: Breaking Free from Google Auth Dependency
How to decouple your authentication from workspace providers without breaking your apps.
#4318: Fiber vs Copper: Pulling Cable in a Rental Apartment
Should you pull fiber or Ethernet through conduit in a rental? One is forgiving, the other is expensive glass.
#4317: The Ladder of Minimal Linux Systems
From scratch containers to BusyBox to Alpine — how barebones can you go and still serve production traffic?
#4316: How to Build Memory That Survives AI Sessions
Why AI agents forget between sessions — and how to fix it with markdown files instead of black-box memory.
#4312: Why Speech-to-Text Still Fails at Its Own Name
When OpenAI's Whisper misheard its own name as "Wispr," it revealed why 95% word accuracy still isn't good enough.
#4311: How Your ATM Counts Cash in Milliseconds
The forgotten miracle of the deposit ATM — optical, magnetic, and ultrasonic sensors reading every note in milliseconds.
#4296: Auto-Splitting AI Threads: Smarter Context Management
How to build a system that automatically detects topic shifts and routes messages to the right thread.