@mac_dev9

Web & Mobile Developer ⚡ 9+ yrs building fast, scalable products. ROR • React • Next.js • React Native • UI/UX 🚀 Building in public ↓ https://xitter.cf/t.co/QvLJtd87Dl

Joined August 2015
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  • Followers2.3K
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Mac
@mac_dev9Oct 18
🚀 Building a business? Let’s turn your idea into a real product. Welcome to MacDev9 — Your Technology Solutions Partner. We help startups, founders, and businesses design, build, and scale digital products. 💻 Web Development Modern websites, SaaS platforms, marketplaces & web applications. 📱 Mobile App Development Powerful iOS & Android applications built for real-world users. 🎨 UI/UX & Product Design Beautiful interfaces, intuitive user experiences & conversion-focused design. ⚙️ Backend & API Development Secure, scalable systems and reliable application architecture. 🤖 AI Development & Integrations Bring AI into your products with intelligent workflows, automation, AI APIs, and custom AI-powered features. 🛠️ Full-Stack Product Development From idea → strategy → design → development → launch. Our approach: The right technology. Clean execution. Solutions built around your business goals. Whether you’re launching an MVP, scaling a SaaS, building a marketplace, or integrating AI into an existing product, let’s make it happen. 🌐 Explore our work: macdev9.com/ 📩 Have a project in mind? DM me or email [email protected] 🤝 Open to new projects, client partnerships, and long-term collaborations. You bring the vision. Let’s build the technology behind it. #MacDev9 #WebDevelopment #MobileAppDevelopment #AI #SaaS
🤖 Made with AI
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@mac_dev98h
Good Night Everyone
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Good Night Everyone
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@mac_dev98h
If your React component needs several effects to keep its own state synchronized, stop and reconsider the design. Can the state be derived? Can the data flow be simplified? Does the component own too much responsibility? Sometimes the fix is architectural, not another effect.
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If your React component needs several effects to keep its own state synchronized, stop and reconsider the design. Can the state be derived? Can the data flow be simplified? Does the component own too much responsibility? Sometimes the fix is architectural, not another effect.
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Moon 🌙
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Not every component needs to be reusable. Sometimes a component used in one place is easier to understand than a generic component with 15 configuration options. Reuse is useful. Unnecessary abstraction is overhead.
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@mac_dev916h
Here's a useful AI coding habit: Ask for the smallest change that solves the problem. Smaller diffs are easier to review, test, understand, and reverse. You don't need a rewrite every time you discover a bug.
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@mac_dev915h
AI can explain unfamiliar code in seconds. But don't stop at the explanation. Trace the function. Inspect its callers. Read the tests. Verify the assumptions. Use AI to shorten the learning curve, not skip the learning.
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@mac_dev914h
The best product decisions often happen before development starts. What problem are we solving? Who experiences it? How do they solve it today? How will we know the solution worked? Clear answers make implementation more valuable.
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@mac_dev913h
I'm not trying to build a personal brand by pretending to know everything. I'd rather share what I'm building, what I'm learning, the problems I encounter, and the decisions behind my work. Real experience is more useful than manufactured expertise.
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A frontend bug can hide behind a perfectly normal user journey. The real test is what happens when someone: Clicks twice. Changes their mind. Goes back. Refreshes the page. Loses their connection. Build for behavior, not just screenshots.
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I'm not trying to build a personal brand by pretending to know everything. I'd rather share what I'm building, what I'm learning, the problems I encounter, and the decisions behind my work. Real experience is more useful than manufactured expertise.
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The best product decisions often happen before development starts. What problem are we solving? Who experiences it? How do they solve it today? How will we know the solution worked? Clear answers make implementation more valuable.
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AI can explain unfamiliar code in seconds. But don't stop at the explanation. Trace the function. Inspect its callers. Read the tests. Verify the assumptions. Use AI to shorten the learning curve, not skip the learning.
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Here's a useful AI coding habit: Ask for the smallest change that solves the problem. Smaller diffs are easier to review, test, understand, and reverse. You don't need a rewrite every time you discover a bug.
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@mac_dev9Oct 21
How Modern HR Software Automates Payroll & Onboarding in 2026
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@mac_dev919h
Background jobs introduce a different set of engineering questions. What if the job runs twice? What if it fails halfway through? What if the external service is unavailable? Moving work into a queue doesn't remove complexity. It changes where you manage it.
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@mac_dev918h
A clean database schema isn't just a backend concern. It affects how easily you build reports, design APIs, display data, and add features later. Data modeling is an investment in future development speed.
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@mac_dev917h
AI makes generating code easier. It also makes generating unnecessary code easier. Before asking AI to build a feature, define the outcome you actually need. A precise problem beats a clever prompt.
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AI makes generating code easier. It also makes generating unnecessary code easier. Before asking AI to build a feature, define the outcome you actually need. A precise problem beats a clever prompt.
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