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TDD Without the Overkill: Why Lightweight TDD Ships Faster
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.
· JetThoughts Team
TDD in Ruby: A Step-by-Step Guide
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.
Refactor Without Breaking Tests: The 3-Line Discipline in Ruby
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.
· JetThoughts Team
Rails CVE-2026-41316: Detection and Patch
CVSS 8.1 universal RCE chain through ERB::DeprecatedInstanceVariableProxy and Marshal.load. Detection, upgrade path, Rails 7.0/7.1 EOL options.
· JetThoughts
Rails 8.1: Subscribe to Events, Skip Logs
Rails 8.1 replaces log parsing with structured events. Wire ActiveSupport::Notifications to Datadog, New Relic, or Prometheus - no regex required.
· JetThoughts Team
Active Job Continuations in Rails 8.1
Rails 8.1's ActiveJob::Continuable resumes long jobs from their last completed step. How to wire it in, when not to, why Kamal deploys stop losing work.
· JetThoughts
Solid Trifecta: When to Keep Redis in Rails 8
Rails 8 defaults to Solid Cache, Solid Queue, and Solid Cable. Most apps don't need Redis anymore. Some still do. Here's how we decide which workloads stay.
· JetThoughts
Ruby on Rails Performance Optimization Patterns for 2026
Concrete benchmarks and patterns for Rails performance in 2026 - YJIT speedups, Rails 8 query optimization, Redis caching, and N+1 elimination.
· JetThoughts
Rails `has_secure_password` with Argon2: Complete Migration Guide
Step-by-step guide to enabling Argon2 with has_secure_password in Rails. Migrate from BCrypt with zero downtime using the Hybrid Verifier pattern in production.
· JetThoughts TeamRuby LangChain Testing Guide 2025 | RSpec + WebMock
Master RSpec testing for LangChain-Ruby with 25 working examples. Learn mocking, VCR, WebMock, and CI/CD automation. Build reliable AI features with 95%+ test coverage.
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Paul Keen, founder