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Go fast and don't break things
Korneliusz philosophizes about how software can be developed fast, without breaking it.

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Why ReactJS Is the Go-To Framework for Startup Web Development
When you finish this read, you’ll understand why ReactJS often tops the stack for early-stage ventures. You’ll learn its core benefits, common use cases, potential pitfalls, hiring tips—and fresh insights on rapid prototyping, serverless integration, cost savings from its open-source ecosystem, plus real-world success stories.
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Comprehensive Guide to ReactJS Code Review and Audit Services
By the end of this article, you’ll understand the core components of a ReactJS code audit, the challenges posed by legacy codebases, how to spot security pitfalls, which automated tools can speed up your review, best practices around hooks and custom patterns, and strategies for ensuring accessibility.
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Building a React.js SaaS Product: From MVP to Scale
In this guide you’ll discover how to take your SaaS idea from a minimum viable product to a platform that serves thousands. You’ll learn core React.js techniques, advanced strategies for growth, and practical tips on security, performance, and global readiness.
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Why React.js Is the Ideal Framework for Your Startup
When you’re launching a new venture, choosing the right front-end technology can make or break your timeline, budget and future growth. In this article you’ll discover why React.js remains the go-to for early-stage companies and learn several lesser-known advantages—like easier hiring, streamlined code maintenance and truly unified cross-platform development—that set React apart from other frameworks.
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How to Choose the Best React.js Development Agency for Your SaaS or Startup
When you need a React.js partner you can trust, you want a clear process to compare firms, validate their skills and ensure they fit your SaaS or startup’s needs. Read on to learn the exact checklist, plus deeper insights on DevOps, accessibility, SaaS-specific challenges and more.
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From Idea to Launch: How to Partner with a React.js Agency for Your MVP
You're about to discover how teaming up with a React.js agency can turn your concept into a live, testable product quickly and reliably. You'll learn why React excels for MVPs, how to pick the right partner, avoid common traps, secure your intellectual property and even gain insights from projects that didn’t succeed.
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Building a Secure and Scalable Frontend for Your Token Sale
In this guide, you’ll discover how to craft a frontend that remains responsive under heavy load, safeguards investor data and delivers a seamless experience on any device. You’ll learn best practices drawn from top resources plus fresh strategies—like decentralized identity, gamification and offline capabilities—that set your token sale apart.
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Web Frontend Risks in DApp Development: What You Must Know
When you build a decentralized application (DApp), the smart contracts often get all the attention. Yet the web frontend—the user interface that talks to your blockchain—can introduce just as many hazards. In this article you’ll learn what goes into a DApp frontend, explore its weakest points, and discover strategies to avoid costly pitfalls.
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How to Pick the Right Development Partner for Your Blockchain Platform's Frontend
Choosing the ideal team to build your blockchain frontend can make or break your project. In this guide, you'll learn how to define your needs, vet technical skills, ensure smooth collaboration and uncover specialized areas—like decentralized identity and real-time performance—that set top partners apart.
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Choosing the Best Headless CMS: Storyblok vs Payload vs Sanity
In this comparison you’ll discover the core strengths and trade-offs of Storyblok, Payload and Sanity, plus advanced factors—like AI automation, security certifications and total cost of ownership—that top articles rarely cover. By the end, you’ll know exactly which CMS fits your project.
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Why Startups Are Ditching WordPress: A Look at Headless CMS in 2025
By reading this, you'll understand what a headless CMS is, why it's attracting fast-moving startups, and which emerging trends will shape your content strategy in 2025 and beyond.
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How to Hire a React.js Development Team Without Losing Momentum (Or Budget)
By the time you finish this guide, you’ll know exactly how to define your project scope, identify the right talent, structure your team for peak productivity, navigate legal and cost considerations, and keep development humming—even when scaling up or down.
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Choose the Right ReactJS Development Partner
By the end of this guide, you’ll know exactly what to look for in a React.js agency—from core skills and emerging best practices to pricing models and post-launch support—so you can make a confident choice.
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Choosing Between Storyblok and WordPress: A Comprehensive Guide
By reading this article, you’ll learn how traditional and headless CMSs differ, what each platform offers in terms of editing, performance, security and community, and which one aligns best with your project goals. You’ll also discover practical tips on migration, SEO tactics, accessibility compliance and real-world success stories.
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React.js Development: In-House Team vs Agency—Which Fits Your Project?
When you’re planning your next React.js project, deciding between hiring an internal team or partnering with an external agency can feel like standing at a crossroads.
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How to Hire React.js Developers: A Complete Guide
When you finish reading this, you’ll know how to find, vet, and onboard React.js developers who not only have the right technical chops but also blend well with your culture. You’ll learn where to look, what to ask, how much to budget, and ways to keep your hires growing.
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The Role of React.js in Modern E-commerce: Faster, Smarter, Better
E-commerce has come a long way from clunky online stores that took forever to load. In today’s digital landscape, speed, user experience, and scalability define success. If your online store isn’t fast, intuitive, and optimized, you’re losing customers—probably to a competitor who understands this better.
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React vs. Next.js: Which One is Right for Your Web App?
Choosing the right framework for your web application can feel like picking between two excellent but slightly different tools. If you’re planning to build a web app, chances are you've come across React and Next.js. Both are popular, both are powerful, and both can help you build amazing applications. But which one is the right choice for your project?
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Building Scalable Web Apps with Next.js: A CTO’s Guide
Scalability is no longer optional—it’s the make-or-break factor for modern web apps. In this guide, we’ll show CTOs how to leverage the flexibility and performance of Next.js to build apps that scale smoothly with user growth, evolving requirements, and business goals.
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Hiring a React Native Developer: The Complete Guide for Businesses
Discover how to find and hire the best React Native developers to build high-performance mobile applications.
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Hiring a Next.js Developer: A Complete Guide for Businesses
Discover what to look for when hiring a Next.js developer and how to build a high-performance web team.
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Composable Commerce: The Future of Scalable and Flexible E-Commerce
Understanding Composable Commerce: Why It Matters for Modern Online Retail Discover how composable commerce is reshaping e-commerce by enabling businesses to build scalable, flexible, and high-performing digital storefronts.
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Understanding React.js: Why It Matters in Web Development
Discover the significance of React.js in creating dynamic and responsive web applications
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Why NextJS for your Website or Web Application
Why are leading companies choosing NextJS as their web framework? Kalle drills into the details from a business perspective.
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PPC: Integrating Meta and Google Ads with Google Tag Manager
Pay-per-click (PPC) advertising is great when you don't have time to wait to grow organic SEO to reach your target audiences. We'll focus on Meta and Google ads and integrating them with GTM.
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A Primer on GTM and GA
What is GTM (Google Tag Manager) and GA (Google Analytics)? What tasks does each have and how are they related?
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Product Customizers with Kickflip and Headless Commerce
Discover how to elevate your e-commerce with Kickflip, using headless commerce for unique, personalized shopping experiences that stand out.
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Navigating Infrastructure Choices: Serverless, Serverful, and Platforms on the Cloud
A guide in selecting the ideal infrastructure solution for your software project, considering serverless, serverful, and platform options. Make informed decisions to align with your project's unique requirements and goals.
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The Dynamic Trio: Storyblok, Vector DBs, and Chatbot - Fueling Conversations with Data Magic!
Unlock the full potential of OpenAI's Chatbot by leveraging the power of long-term memory using Vector Database (DB) and Storyblok. This article unveils the secrets behind seamless data ingestion and retrieval, enabling dynamic and engaging conversations.
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Get your ReactJS app in front of customers in weeks, not months
Kalle stresses the fact that productive React developers are great listeners that understand your business and empathize with your clients, and use tools they're well acquainted with, and work in small kick-ass teams.
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Top Tips for a Seamless Content Migration to Storyblok
Switching from a traditional content management system (CMS) like WordPress to a powerful, flexible, and user-friendly platform like Storyblok can be challenging, but the benefits are undeniable. At Makers' Den, we're committed to helping our clients make a smooth transition from WordPress to Storyblok. In this article, we'll share our top tips for a seamless content migration process, ensuring that you can take full advantage of this innovative headless CMS.
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Why Your Business Should Consider React Native for App Development
Choosing the right tech for your app is daunting task – especially with so many options. React Native has emerged as one of the most popular platforms for app development
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Shopify and Hydrogen: A perfect combination for your composable commerce stack
Composable commerce architecture has been gaining in popularity in recent years. Whether it’s due to the agility, scalability, or cost efficiency it offers, this approach to building and developing online stores seems a safe bet for today’s ambitious online stores.
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The speed advantage: Why Storyblok and Jamstack are the perfect match to ace your core web vitals
Web performance is a crucial factor for website owners and developers as it directly affects the user experience of their visitors. In recent years, the rise of the Jamstack architecture has provided an efficient way to build fast websites that rank high in SERP. Storyblok is a headless CMS that is built to work with Jamstack, providing the speed advantage necessary to ace your site’s Core Web Vitals metrics. In this article, we will try to provide a high-level overview of the benefits of using Storyblok to get better Core Web Vitals in Jamstack architecture. But first, let’s quickly go over the basics.
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Reverse Engineering Styled Components
CSS-in-JS is cool, but how does it really work? Turns out it's not that difficult to create a styled-components like library yourself. Find out how right here.
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A look at Google Core Web Vitals
Google's Core Web Vitals are an SEO ranking factor that is increasing in importance. We know how to please Google's black box.
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How to write a winning project proposal
Before you get to do a project, you need to convince your management that it has wortwhile ROI. This is how you do it.
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How to Estimate Software Projects
Everyone needs to set budgets, and for that we need to make estimates whether you like it or not. We've developed a process for estimation.
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FLIP animation in React
First, Last, Invert and Play - aka FLIP animations. It's a cool technique you can leverage to do smooth animations used in libraries like Framer, and enables animating CSS layouts like flex and grid.
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Reducing gitlab runner cost with AWS Spot Instances
We all like to save money, and by running your Gitlab runners on AWS spot instances, you can save a bunch.
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Integrating with Klarna Payments
The #1 resource on how to integrate with Klarna's payment API to deliver a kick-ass in-store checkout app.
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ReactJS 3d Map DataViz with DeckGL: Flights of Berlin
Kalle created a nice 3d map visualisation of flights coming in and out of Berlin. It's based on raw data from OpenSky and the visualisation is done with DeckGL on top of ReactJS.
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RedwoodJS
Who will become the Ruby on Rails of Javascript? RedwoodJS certainly wants to.
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KitaExpert - ending preschool struggles
Finding a Kindergarten spot in Berlin is hard. So obviously we built a JAMStack app to help with this.
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PWA in 2020, come on Apple!
PWAs have been on the verge of breakthrough for years - but there's always some small thing missing.
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Hacking smart contracts
To defend against hacks for your smart contracts, the best way is to learn how to hack them.
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A sectional website builder with Prismic.io, React and Gatsby.JS
I’ll show you how Makers’ Den created a custom sectional website builder for Friday.de using Prismic.io, ReactJs and Gatsby.js.
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Implementing the friday.de design system in React
How did we create a design system and re-usable component library from scratch with ReactJS and CSS-in-JS?
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The most market-driven restaurant
Uniswap is an automated token exchange running on Ethereum blockchain. Kimi elaborates on how it could be used to run a restaurant.
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Why JAMStack
JAMStack (Javascript, Apis and Markup) is synonymous with web apps that have no runtime backends components, except lightweight API dependencies.
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Svelte 3
Svelte3 is one of the newest contenders for relevant frontend frameworks. It unique value prop is compiling the frameworks itself away during build time.
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Go fast and don't break things
Korneliusz philosophizes about how software can be developed fast, without breaking it.
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A look inside React Fiber
Korneliusz did a deep dive into React Fiber before it was cool. This seminal article is an in-depth analysis of the topic and goes down into the nitty gritty of concurrent rendering in React, including the source code itself.
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