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Tuesday, 13 October 2026 Reading Room

Tech

I built a tool that answers "what changed?" when production breaks

It's 2 AM. PagerDuty goes off. You open your monitoring tool and it tells you, with great confidence, that checkout latency is up 400%. Thanks. Extremely useful. Now the actual work starts: what changed? You open the deploy history in one tab, the feature-flag dashboard in another, the migration log in a third, Slack in a fourth, and you spend twenty minutes doing timestamp archaeology while the…

dev.to ·

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MarkLogic discloses 31 flaws, five rated critical

Progress Software published 31 security flaws in its MarkLogic Server database on October 12, 2026. Five are rated critical, and three of those score 9.9 out of 10.

  • MarkLogic disclosed 31 vulnerabilities in its MarkLogic Server database on October 12, 2026
  • Five vulnerabilities rated critical, three with maximum severity of 9.9/10
  • Users on earlier patch versions (11.3.6, 12.0.3) remain vulnerable

·dev.to

Why I Built a $5 ESP32 Hardware Firewall to Stop Cyber-Physical Grid Attacks

`The Problem: Physics is Faster Than the CloudAs we rapidly deploy distributed high-voltage infrastructure—like public EV charging stations and autonomous drone landing pads—we are securing them…

  • Hardware firewall built using low-cost ESP32 microcontroller to protect grid systems.
  • Continuous monitoring of charging cable's RMS current and dI/dt to detect attacks.
  • Immediate disconnection of power via relay when anomaly exceeds safe threshold.

·dev.to

When an input moves mid-run, vx keeps the result and skips the save

A cache key is a promise: these outputs were built from exactly these inputs. vx takes the key just before the command runs.

  • When an input changes mid-run, vx skips saving the output.
  • vx keeps the result and marks the changed file.
  • Next run rebuilds from current disk state if file moved.

·dev.to

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