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The Linux kernel just made humans legally responsible for every AI-generated line. Your dev shop contract should too. Five clauses, one weekend audit, answer by Monday.

TDD looks slow on paper. The real ledger is one hour writing tests against six hours debugging next week. Here is why lightweight TDD wins.

A working Ruby tutorial for TDD on a small Order class. The 90-second loop, Shameless Green, Tidy First commits, and the reset move that makes it all safe.

The refactor step breaks more tests than green ever does. Cap each refactor commit at three lines of Ruby and the suite stays green every time.

Solo Claude Code agents ship like solo developers - missing PM, designer, QA, customer voice. Here is the team-mode setup running Shape Up plus XP plus reflection-driven Kaizen.

Agencies pitch AI-built MVPs as faster and cheaper. The 2026 data says fixing them costs 2-3x what you saved. Here is the real founder math, with sources.

CVSS 8.1 universal RCE chain through ERB::DeprecatedInstanceVariableProxy and Marshal.load. Detection, upgrade path, Rails 7.0/7.1 EOL options.

On April 25, 2026, an AI coding agent at PocketOS deleted the production database and its on-volume backups in 9 seconds. Here's what your dev shop should learn.

Most founders ask 'what's your rate?' first. Here are the 5 questions that predict whether a dev shop will deliver - or disappear with your code.

Rails 8.1 replaces log parsing with structured events. Wire ActiveSupport::Notifications to Datadog, New Relic, or Prometheus - no regex required.