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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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How to Write Readiness Checks That Survive Real Production Traffic
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How to Write Readiness Checks That Survive Real Production Traffic

#webdev #programming #productivity
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6 min read
How to Tell If Your Health Endpoint Is Lying To You
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How to Tell If Your Health Endpoint Is Lying To You

#webdev #programming #productivity
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7 min read
How to Add Idempotency Keys to an Existing Integration Without Breaking Live Traffic
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How to Add Idempotency Keys to an Existing Integration Without Breaking Live Traffic

#programming #api #productivity
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6 min read
Five Patterns for Making Data Integration Operations Safe to Retry
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Five Patterns for Making Data Integration Operations Safe to Retry

#programming #api #productivity
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6 min read
Why the Empty States in a Data Table Deserve Three Separate Designs Instead of One Generic Message
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Why the Empty States in a Data Table Deserve Three Separate Designs Instead of One Generic Message

#ux #webdev #productivity
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6 min read
How to Design Keyboard Navigation for a Data Grid So Power Users Stop Reaching for the Mouse
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How to Design Keyboard Navigation for a Data Grid So Power Users Stop Reaching for the Mouse

#ux #webdev #productivity
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8 min read
Why Your Service Worker Cache Is Silently Breaking Your Offline Mode
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Why Your Service Worker Cache Is Silently Breaking Your Offline Mode

#pwa #webdev #programming #serviceworker
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6 min read
How to Use ETags for Cheap Revalidation in a React App
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How to Use ETags for Cheap Revalidation in a React App

#react #webdev #programming #performance
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6 min read
How to Wire aria-describedby and aria-invalid on Form Errors Without Breaking Your Styles
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How to Wire aria-describedby and aria-invalid on Form Errors Without Breaking Your Styles

#webdev #a11y #html
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6 min read
Why the Async Username Check Is the Worst Part of Most Signup Forms
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Why the Async Username Check Is the Worst Part of Most Signup Forms

#ux #webdev #a11y
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6 min read
How to Handle Late-Arriving Events in Apache Flink With Side Outputs
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How to Handle Late-Arriving Events in Apache Flink With Side Outputs

#programming #integration #api
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5 min read
How to Implement the Versioned-Fact Pattern for Streaming Corrections
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How to Implement the Versioned-Fact Pattern for Streaming Corrections

#programming #integration #sql
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5 min read
Why Your Mobile App's Permission Denial Rate Is High and What to Instrument Before You Fix It
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Why Your Mobile App's Permission Denial Rate Is High and What to Instrument Before You Fix It

#mobile #ux #ios
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6 min read
How to Deep-Link From Your App to the System Settings Page for Permission Recovery
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How to Deep-Link From Your App to the System Settings Page for Permission Recovery

#mobile #ios #android
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6 min read
Why Null Rate Spikes Are the First Sign of Schema Drift in the Warehouse
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Why Null Rate Spikes Are the First Sign of Schema Drift in the Warehouse

#api #data #monitoring
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6 min read
How to Run Contract Tests Against a SaaS Source on a 15-Minute Schedule
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How to Run Contract Tests Against a SaaS Source on a 15-Minute Schedule

#api #integration #python
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5 min read
Why Bounded Queues Beat Unbounded Queues for Integration Error Handling
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Why Bounded Queues Beat Unbounded Queues for Integration Error Handling

#programming #api #productivity
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6 min read
How to Write a Replay Tool for Failed Integration Records
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How to Write a Replay Tool for Failed Integration Records

#programming #api #productivity
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6 min read
Why Expand-and-Contract Works for Database Migrations (and What Teams Skip)
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Why Expand-and-Contract Works for Database Migrations (and What Teams Skip)

#webdev #programming #productivity #database
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6 min read
How to Add a NOT NULL Column Without Locking the Table in Postgres
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How to Add a NOT NULL Column Without Locking the Table in Postgres

#webdev #programming #productivity #database
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6 min read
Seven Non-Modal UI Patterns That Solve Common Modal Use Cases Without the Accessibility Cost
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Seven Non-Modal UI Patterns That Solve Common Modal Use Cases Without the Accessibility Cost

#webdev #ui #ux
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6 min read
How to Test Modal Dialog Accessibility With Keyboard Navigation and Screen Readers
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How to Test Modal Dialog Accessibility With Keyboard Navigation and Screen Readers

#webdev #a11y #ui
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6 min read
What Developers Miss About Transaction Logs When Building CDC Pipelines
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What Developers Miss About Transaction Logs When Building CDC Pipelines

#data #postgres #automation
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7 min read
How to Set Up Debezium With PostgreSQL for Production CDC
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How to Set Up Debezium With PostgreSQL for Production CDC

#postgres #data #automation
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7 min read
Why Hallucinated APIs Are the Most Common Bug Class in AI-Generated Code
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Why Hallucinated APIs Are the Most Common Bug Class in AI-Generated Code

#ai #programming #productivity #webdev
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6 min read
5 Quick Checks I Run on Every AI-Generated Pull Request Before Approving It
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5 Quick Checks I Run on Every AI-Generated Pull Request Before Approving It

#ai #codereview #programming #productivity
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6 min read
6 Tools That Make AI Coding Reviews Less Painful for Engineering Teams
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6 Tools That Make AI Coding Reviews Less Painful for Engineering Teams

#ai #productivity #tools #programming
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6 min read
What I Learned From One Year of Reviewing AI-Generated Pull Requests
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What I Learned From One Year of Reviewing AI-Generated Pull Requests

#ai #programming #productivity #webdev
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6 min read
Why Your Service Worker Dies Before Your Push Notification Renders
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Why Your Service Worker Dies Before Your Push Notification Renders

#webdev #javascript #pwa #programming
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5 min read
How to Handle pushsubscriptionchange Events in Production
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How to Handle pushsubscriptionchange Events in Production

#webdev #javascript #pwa #programming
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6 min read
How to Add Live Notifications to a Web App with Server-Sent Events
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How to Add Live Notifications to a Web App with Server-Sent Events

#webdev #javascript #sse #programming
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7 min read
7 Essential Patterns for Production Real-Time Web Apps
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7 Essential Patterns for Production Real-Time Web Apps

#webdev #realtime #sse #websockets
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7 min read
Why Your Risk Register Dies Between Audits (and How to Keep It Alive)
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Why Your Risk Register Dies Between Audits (and How to Keep It Alive)

#business #productivity #technology
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6 min read
10 Operational Continuity Risks Every Small Engineering Team Should Track
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10 Operational Continuity Risks Every Small Engineering Team Should Track

#business #devops #productivity
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6 min read
How to Wire Up Deployment Frequency and Lead Time Metrics in a Node.js Project
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How to Wire Up Deployment Frequency and Lead Time Metrics in a Node.js Project

#javascript #devops #productivity #node
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6 min read
Setting Up DORA Metrics in GitHub Actions Without Buying Anything
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Setting Up DORA Metrics in GitHub Actions Without Buying Anything

#devops #productivity #github #webdev
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6 min read
Why Your File Upload Endpoint Times Out at 4GB
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Why Your File Upload Endpoint Times Out at 4GB

#webdev #javascript #backend #productivity
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7 min read
How to Use Pre-Signed S3 URLs for Direct Browser-to-Storage Uploads
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How to Use Pre-Signed S3 URLs for Direct Browser-to-Storage Uploads

#webdev #aws #javascript #backend
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7 min read
How to Instrument Onboarding Flows Without Adding Heavy Analytics
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How to Instrument Onboarding Flows Without Adding Heavy Analytics

#webdev #productivity #ux
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6 min read
How to Build a Toast Notification System That Does Not Block the User
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How to Build a Toast Notification System That Does Not Block the User

#webdev #javascript #ux
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6 min read
10 Regex Patterns Every Backend Developer Should Have in Their Snippets Folder
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10 Regex Patterns Every Backend Developer Should Have in Their Snippets Folder

#webdev #programming #javascript #productivity
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6 min read
How to Write Regex Patterns That Survive Real-World Input
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How to Write Regex Patterns That Survive Real-World Input

#webdev #programming #javascript #productivity
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6 min read
Implementing Change Data Capture for Reliable Bi-Directional Data Sync
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Implementing Change Data Capture for Reliable Bi-Directional Data Sync

#programming #api #productivity
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6 min read
Conflict Resolution in Bi-Directional Data Sync: Strategies That Hold Up in Production
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Conflict Resolution in Bi-Directional Data Sync: Strategies That Hold Up in Production

#programming #api #productivity
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5 min read
How to Prevent the Flash of Wrong Theme When Implementing Dark Mode
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How to Prevent the Flash of Wrong Theme When Implementing Dark Mode

#webdev #programming #productivity
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6 min read
Building a CSS Design Token System That Scales
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Building a CSS Design Token System That Scales

#webdev #programming #productivity
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6 min read
How to Add Fuzzy Search to a JavaScript App With Fuse.js
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How to Add Fuzzy Search to a JavaScript App With Fuse.js

#javascript #webdev #search #tutorial
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5 min read
7 Free Search Libraries and Tools for JavaScript Web Apps
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7 Free Search Libraries and Tools for JavaScript Web Apps

#webdev #javascript #search #tools
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5 min read
Python Try-Except vs Try-Finally: When to Use Each
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Python Try-Except vs Try-Finally: When to Use Each

#python #programming #tutorial #beginners
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5 min read
Python Custom Exception Classes: When and How to Define Your Own
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Python Custom Exception Classes: When and How to Define Your Own

#python #programming #tutorial #webdev
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5 min read
Python Libraries for Building Message Queue Consumers
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Python Libraries for Building Message Queue Consumers

#automation #data #programming
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6 min read
How to Set Up a Dead-Letter Queue in Celery With Redis
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How to Set Up a Dead-Letter Queue in Celery With Redis

#automation #data #programming
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6 min read
How to Implement Feature Flags in a Node.js Web Application
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How to Implement Feature Flags in a Node.js Web Application

#webdev #programming #productivity
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5 min read
7 Feature Flag Tools and Libraries for Web App Developers
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7 Feature Flag Tools and Libraries for Web App Developers

#webdev #programming #productivity
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5 min read
How to Build a Simple Technology ROI Tracking Dashboard
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How to Build a Simple Technology ROI Tracking Dashboard

#business #technology #productivity
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7 min read
How to Set Up Metrics for Tracking Business Technology Performance
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How to Set Up Metrics for Tracking Business Technology Performance

#business #technology #productivity
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6 min read
CSS Techniques for Creating Visual Hierarchy in Web Interfaces
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CSS Techniques for Creating Visual Hierarchy in Web Interfaces

#webdev #css #programming #ux
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6 min read
How to Audit Visual Hierarchy in an Existing Web Design
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How to Audit Visual Hierarchy in an Existing Web Design

#webdev #ux #programming #css
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6 min read
How to Use Pydantic to Validate External API Data in Python
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How to Use Pydantic to Validate External API Data in Python

#python #automation #programming
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5 min read
Why Schema Validation Is the Cheapest Bug Fix in Data Pipelines
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Why Schema Validation Is the Cheapest Bug Fix in Data Pipelines

#python #automation #programming
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5 min read
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