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137Foundry

Custom Software, Built Around Your Business: Websites, mobile apps, AI agents, and automation systems designed to replace fragmented tools and recurring fees.

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7 Free Tools for Building and Testing a Web Typography System

7 Free Tools for Building and Testing a Web Typography System

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5 min read
How to Build a Fluid Type Scale with CSS clamp() - A Complete Implementation Guide

How to Build a Fluid Type Scale with CSS clamp() - A Complete Implementation Guide

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6 min read
How to Set Up Jest for AI-Assisted Unit Test Generation in JavaScript

How to Set Up Jest for AI-Assisted Unit Test Generation in JavaScript

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5 min read
Free AI Coding Tools That Generate Unit Tests (And How Well They Work)

Free AI Coding Tools That Generate Unit Tests (And How Well They Work)

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5 min read
How to Prepare a Legacy Codebase for AI-Assisted Refactoring

How to Prepare a Legacy Codebase for AI-Assisted Refactoring

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5 min read
How to Build a Dependency Map of a Legacy Codebase Using AI Tools

How to Build a Dependency Map of a Legacy Codebase Using AI Tools

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5 min read
Idempotency in Data Pipelines: How to Prevent Duplicate Records

Idempotency in Data Pipelines: How to Prevent Duplicate Records

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5 min read
How to Build a Dead Letter Queue System for Reliable Data Processing

How to Build a Dead Letter Queue System for Reliable Data Processing

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5 min read
7 Free Tools and Resources for Building Well-Structured React Applications

7 Free Tools and Resources for Building Well-Structured React Applications

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7 min read
When to Split a React Component (And When You're Over-Engineering)

When to Split a React Component (And When You're Over-Engineering)

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5 min read
Why Multi-Step Forms Outperform Long Single-Page Forms for Complex Signups

Why Multi-Step Forms Outperform Long Single-Page Forms for Complex Signups

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5 min read
How to Persist Multi-Step Form State With localStorage and sessionStorage

How to Persist Multi-Step Form State With localStorage and sessionStorage

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6 min read
How to Validate Environment Variables at Application Startup

How to Validate Environment Variables at Application Startup

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6 min read
7 Free Tools for Managing Secrets and Environment Variables in Web Projects

7 Free Tools for Managing Secrets and Environment Variables in Web Projects

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8 min read
Why Error Messages Are a UX Opportunity (Not Just a Fix)

Why Error Messages Are a UX Opportunity (Not Just a Fix)

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5 min read
How to Audit Every Error State in Your Web Application (A Step-by-Step Guide)

How to Audit Every Error State in Your Web Application (A Step-by-Step Guide)

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6 min read
How to Use reduce() for Data Grouping and Aggregation in JavaScript

How to Use reduce() for Data Grouping and Aggregation in JavaScript

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5 min read
Why JavaScript's sort() Behaves the Way It Does and How to Fix It

Why JavaScript's sort() Behaves the Way It Does and How to Fix It

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5 min read
7 Free Tools for Testing AI-Generated Code Before It Ships

7 Free Tools for Testing AI-Generated Code Before It Ships

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6 min read
How to Build a CI Pipeline That Catches Common AI Code Issues

How to Build a CI Pipeline That Catches Common AI Code Issues

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6 min read
How to Write Authorization Middleware for Express.js Applications

How to Write Authorization Middleware for Express.js Applications

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5 min read
How Broken Access Control Became OWASP's Top Security Risk

How Broken Access Control Became OWASP's Top Security Risk

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5 min read
How to Implement Sortable, Filterable Data Tables in React with TanStack Table

How to Implement Sortable, Filterable Data Tables in React with TanStack Table

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5 min read
Why Data Tables Fail and How to Fix the Most Common UX Mistakes

Why Data Tables Fail and How to Fix the Most Common UX Mistakes

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5 min read
7 Free Tools for Measuring and Improving Core Web Vitals

7 Free Tools for Measuring and Improving Core Web Vitals

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6 min read
Why Cumulative Layout Shift Is Harder to Fix Than It Looks

Why Cumulative Layout Shift Is Harder to Fix Than It Looks

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6 min read
The Real Cost of Silent Data Pipeline Failures

The Real Cost of Silent Data Pipeline Failures

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6 min read
How to Add Error Handling and Monitoring to a Data Pipeline

How to Add Error Handling and Monitoring to a Data Pipeline

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5 min read
How to Build a Vendor Scoring Rubric That Stakeholders Actually Trust

How to Build a Vendor Scoring Rubric That Stakeholders Actually Trust

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5 min read
12 Free Tools and Resources for Running a Software Vendor Evaluation

12 Free Tools and Resources for Running a Software Vendor Evaluation

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5 min read
Step-by-Step Webhook Signature Verification for Any Sender

Step-by-Step Webhook Signature Verification for Any Sender

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5 min read
Why Synchronous Webhook Processing Is a Production Trap

Why Synchronous Webhook Processing Is a Production Trap

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5 min read
7 Free UX Tools for Researching and Testing Web Form Design

7 Free UX Tools for Researching and Testing Web Form Design

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5 min read
How Inline Validation Reduces Form Abandonment and Errors

How Inline Validation Reduces Form Abandonment and Errors

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6 min read
7 Free Tools for Testing and Analyzing HTTP Caching Behavior

7 Free Tools for Testing and Analyzing HTTP Caching Behavior

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5 min read
How HTTP Caching Works at the Browser, CDN, and Proxy Layer

How HTTP Caching Works at the Browser, CDN, and Proxy Layer

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6 min read
7 Free AI Coding Tools Worth Adding to Your Development Workflow

7 Free AI Coding Tools Worth Adding to Your Development Workflow

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5 min read
How to Structure Your Prompts for AI Coding Assistants When Building Complex Features

How to Structure Your Prompts for AI Coding Assistants When Building Complex Features

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5 min read
7 Tools That Help You Review and Validate AI-Generated Code in Your Pipeline

7 Tools That Help You Review and Validate AI-Generated Code in Your Pipeline

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5 min read
How to Set Up Pre-Commit Hooks for Teams Using AI Coding Assistants

How to Set Up Pre-Commit Hooks for Teams Using AI Coding Assistants

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6 min read
How to Build a Code Quality Gate for AI-Assisted Pull Requests

How to Build a Code Quality Gate for AI-Assisted Pull Requests

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5 min read
7 Free Tools for Managing AI Code Output in Production Engineering Teams

7 Free Tools for Managing AI Code Output in Production Engineering Teams

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6 min read
5 UX Patterns That Reduce Form Abandonment Instantly

5 UX Patterns That Reduce Form Abandonment Instantly

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6 min read
Why Your Checkout Form Is Killing Your Conversion Rate

Why Your Checkout Form Is Killing Your Conversion Rate

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6 min read
5 Python Libraries That Make Data Transformation Painless

5 Python Libraries That Make Data Transformation Painless

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6 min read
Why Manual Data Entry Is Still Costing Your Business More Than You Think

Why Manual Data Entry Is Still Costing Your Business More Than You Think

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5 min read
Why Your Tech Stack Choice Matters Less Than Your Team's Expertise

Why Your Tech Stack Choice Matters Less Than Your Team's Expertise

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5 min read
5 Architecture Patterns Every Web Application Developer Should Understand

5 Architecture Patterns Every Web Application Developer Should Understand

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6 min read
Why Your Team Is Still Paying for SaaS Tools Nobody Uses

Why Your Team Is Still Paying for SaaS Tools Nobody Uses

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6 min read
5 Open Source Alternatives Worth Considering Before Renewing Expensive SaaS Tools

5 Open Source Alternatives Worth Considering Before Renewing Expensive SaaS Tools

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6 min read
5 Open Source Data Visualization Libraries for Building Custom Dashboards

5 Open Source Data Visualization Libraries for Building Custom Dashboards

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5 min read
Why Custom Reporting Tools Outperform Generic BI Platforms for Growing Teams

Why Custom Reporting Tools Outperform Generic BI Platforms for Growing Teams

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5 min read
5 Open Source Component Libraries Worth Using as a Design System Foundation

5 Open Source Component Libraries Worth Using as a Design System Foundation

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6 min read
Why Your UI Keeps Breaking: The Case for a Shared Component Library

Why Your UI Keeps Breaking: The Case for a Shared Component Library

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5 min read
5 Open Source Linters and Static Analysis Tools for AI-Assisted Codebases

5 Open Source Linters and Static Analysis Tools for AI-Assisted Codebases

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5 min read
Why AI-Generated Code Passes Tests But Fails in Production

Why AI-Generated Code Passes Tests But Fails in Production

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6 min read
Why Your Webhook Endpoint Keeps Getting Duplicate Events (And How to Fix It)

Why Your Webhook Endpoint Keeps Getting Duplicate Events (And How to Fix It)

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5 min read
5 Patterns for Building Resilient Event-Driven Integrations

5 Patterns for Building Resilient Event-Driven Integrations

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5 min read
Why Responsive Images Are the Most Overlooked Mobile Performance Fix

Why Responsive Images Are the Most Overlooked Mobile Performance Fix

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6 min read
5 Open Source CSS Frameworks for Mobile-First Web Development

5 Open Source CSS Frameworks for Mobile-First Web Development

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5 min read
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