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Topics

Development

Featured in Development

Accelerating Performance by Incrementally Integrating Rust into Existing Codebase

Lily Mara explains how to avoid high-risk software rewrites through incremental FFI refactoring. She shares how engineering teams can replace Python bottlenecks with Rust via PyO3, demonstrating how to achieve dramatic function-level speedups, seamless integration testing, and meaningful infrastructure cost savings without microservice overhead.

All in development

Architecture & Design

Featured in Architecture & Design

Beyond Relevance: A Governance-First Architecture for Enterprise Personalization

This article examines the limitations of conventional personalization systems and highlights the need for a governance-first architecture. It emphasizes separating relevance from governance to ensure recommendations are context-aware, auditable, and compliant. The architecture integrates stateful memory, policy-driven AI orchestration, and explainable scoring to enhance personalization systems.

All in architecture-design

AI Infrastructure

Featured in AI, ML & Data Engineering

The Agent Harness: Control Planes, Invariants, and Approval Boundaries for Production AI Agents

OpenAI’s Vinoth Govindarajan discusses why production AI agents fail beyond model hallucination. Using real-world case studies like OpenClaw, he explains the key principles of reliable agent harnesses: establishing explicit state ownership, serializing concurrent state mutations, scoping execution authority, and validating actions at the user-visible edge.

All in ai-ml-data-eng

Culture & Methods

Featured in Culture & Methods

Maximizing Success with Limited Time, Resources, and Energy: Lessons from Startup Engineering

David Gudeman discusses battle-tested architectural patterns for resource-constrained engineering teams. Drawing from over a decade of startup experience, he explains how pairing GCP, Firebase, and Cloud Run accelerates product-market fit. Learn how to eliminate redundant frontend state, structure event-driven backends, and maintain lean DevOps while building for long-term scalability.

All in culture-methods

DevOps

Featured in DevOps

Securing AI Agents: Identity, Authorization, and the DPACT Framework

In this episode, Sahil Agarwal talks about the critical challenges of identity, authorisation, and security in the age of AI agents. Sahil introduces the DPACT framework (Delegation, Policy, Auditability, Context, and Time) as a blueprint for building responsible, guardrailed agentic systems, moving away from simple token-based access toward bounded, delegated authority.

All in devops

Events

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Architect Certification

Distributed systems, decentralized decisions, platform engineering, and AI architecture.
Online. Register Now.

AI Security & Privacy Engineering Certification

Secure and govern production AI systems, from sensitive data to guardrails, evals, and audits.
Online. Register now.

AI-Assisted Engineering Certification

Your coding agent moves fast. Who checks whether it's making the codebase better?
Online. Register Now.

High-Performing Teams Certification

Compare team design, delivery flow, AI roles, and metrics with experienced practitioners.
Online. Register Now.

QCon San Francisco

What's working across AI, architecture, and leadership, from the teams doing it.
Register. Early bird ends Oct 13.

QCon AI New York

Production AI across agents, context, evals, security, and infrastructure, from the senior engineers building it.
Register. Early bird ends Oct 13.

QCon London

What early-adopter teams have proven in production, across 15 engineering tracks.
Register. Early bird ends Oct 13.

InfoQ Homepage Interviews Carl Lerche on Rails 3 and Arel

Carl Lerche on Rails 3 and Arel

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13:18

Bio

Carl Lerche is a Ruby enthusiast, and recovering PHP developer. He spent the last year working on Rails 3 at Engine Yard, and prior to that, was a core member of the Merb development team. Carl's been working with Ruby for over five years, and has completed several large-scale commercial sites in that time.

About the conference

The Scottish Ruby Conference rebrands the successful Scotland on Rails conference. It is the same team organising the same event that ran in 2008 and 2009, but with a more accurate name and an exciting new venue: The Royal College of Physicians in the centre of Edinburgh.

Jul 06, 2010

Interview with

Carl Lerche

by

Werner Schuster

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