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Dockerized Databases on Your Terms: Self-Host PostgreSQL/MySQL Like a Pro (Without the 3 AM Panic) 🐳💡

Self-hosting databases using Docker on a VPS can save costs and provide more control over configurations and latency.
Choose a VPS provider like DigitalOcean, Linode, or Hetzner and use Ubuntu 22.04 LTS for Docker-friendly setup.
Dockerize your PostgreSQL or MySQL databases with security measures like SSH hardening, firewall rules, and DB user best practices.
Implement automated backups, monitoring with Prometheus + Grafana, and switch to managed services based on workload and security needs.

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Dev

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Tagwise: Technical Review of AI-Powered Bookmark Categorization Project

Tagwise is an AI-powered web application developed to categorize bookmarked links automatically as an internship project.
The project utilizes technologies like Django, PostgreSQL, BeautifulSoup4, Selenium, OpenAI GPT-4o, Google Gemini API, and more.
Bookmark categorization is done using large language models like OpenAI GPT-4o or Google Gemini API without the use of vector store or RAG.
Additionally, the project includes a chatbot feature for querying bookmark archives using LangChain embeddings stored in a FAISS vector store.

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Dev

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Optimizing React Performance: Memoization, Lazy Loading, and Bundle Analysis

In web development, performance is essential for user satisfaction. React offers tools to optimize applications as they grow in complexity.
Memoization in React, using techniques like React.memo, useMemo, and useCallback, can prevent unnecessary re-renders and computations.
React.memo skips re-rendering if props haven't changed. useMemo memoizes expensive function calls, while useCallback memoizes callback functions.
Strategic use of memoization is recommended for pure components, frequent renders with the same props, and expensive calculations.
Lazy loading with React.lazy and Suspense helps reduce initial load times by splitting code into smaller, on-demand chunks.
Analyzing and optimizing bundle size using tools like webpack-bundle-analyzer is crucial for efficient performance.
Dependency optimization, tree shaking, targeted imports, and using smaller alternatives can help reduce bundle size.
Always deploy the production build to benefit from bundler optimizations like minification and dead code elimination.
Optimizing React performance is an ongoing process that involves memoization, lazy loading, bundle analysis, and deployment of production builds.

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Dev

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How Messengers Actually Encrypt Messages (End-to-End)

The article discusses the implementation of end-to-end encryption for message security, using JavaScript and the Web Crypto API.
It highlights the importance of private, public, and shared keys in the encryption process, explaining their roles and storage methods.
The shared secret key, derived from private and public keys, enables the encryption and decryption of messages.
The article delves into asymmetric encryption and ECDH key exchange protocols for establishing shared secret keys securely.
Web Crypto API in browsers provides low-level cryptographic primitives for operations like encryption, decryption, hashing, and signature generation.
A ChatCrypto class example is presented, detailing the key initialization process, encryption, and decryption steps using AES-GCM algorithm.
Generation of unique Initialization Vectors (IV) for encryption and decryption, along with data encoding and decoding, is explained.
The article emphasizes the importance of secure key pair generation, public key exchange, and secure message exchange practices for robust encryption.
The illustration concludes with practical examples demonstrating text encryption and decryption using the ChatCrypto class.
Overall, the article provides insights into creating a secure messaging system through effective use of encryption methods and APIs.

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Dev

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Mastering React Hooks: A Deep Dive into useState and useEffect

React Hooks like useState and useEffect have transformed how developers handle state and side effects in functional components.
This deep dive into useState and useEffect provides insights for beginners and intermediate developers on best practices and common pitfalls.
useState empowers functional components to manage local state, but proper initialization is crucial to avoid errors.
Directly mutating state variables is a mistake; always use the setter function provided by useState for updates.
Utilize the functional update form to handle state updates that depend on the previous state value correctly.
Remember that state updates are asynchronous, so accessing the state immediately after setting it may not reflect the updated value.
Group related state into objects when state logic involves multiple fields, and consider useReducer for complex state transitions.
useEffect manages side effects in React components, with the dependency array controlling when the effect runs.
Ensure cleanup for side effects to avoid memory leaks, and include all reactive values in the useEffect dependency array to prevent stale data issues.
Mastering useState and useEffect involves understanding immutability, dependency management, and cleanup for predictable and efficient React applications.

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TronWeekly

294

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From SWIFT to Ripple: The $50 Trillion Shift in Cross-Border Payments

The B2B cross-border payments market is projected to grow from $31.6 trillion in 2023 to $50 trillion by 2032.
Blockchain and stablecoins like Ripple's XRP and RLUSD are improving global payment efficiency and transparency.
Ripple's payment solution utilizes XRP and RLUSD for real-time and cost-effective global transfers.
Legacy cross-border payment systems are slow and costly, but blockchain-based alternatives are offering faster and more affordable solutions for businesses.

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Dev

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I've tried all (46 😵‍💫) AI Coding Agents & IDEs

Various AI coding tools like Factory AI, Heyboss AI, and Emergent Labs offer unique features for developers, ranging from generating complex apps to building production-grade applications.
Tools like Wrapifai and Create.xyz cater to different needs, enabling users to create form-based apps and clone products with ease.
CodeMate excels in generating mobile apps directly from a mobile device, while Cursor is favored for its assistance and code-building capabilities for coders.
Bolt, Lovable, and Windsurf are among the notable AI tools that offer a range of features for different user preferences, from no-coders to lazy coders.
GitHub Copilot and Replit AI are recognized for their advanced AI capabilities in code generation and full-stack app development.
Webdraw stands out for its user-friendly interface that transforms sketches into web apps, while Devin acts as a junior developer within a team.
Various tools like Caffeine AI, Aider, and Pear AI offer unique features such as cool terminal UI, generating code from prompts, and acting as pair programmers.
Amazon CodeWhisperer aids in unit test generation, JetBrains focuses on AI code generation, and ChatGPT Code Interpreter targets no-coders learning to code.
Overall, the AI coding landscape offers a diverse range of tools catering to different user needs, from beginners to experienced developers, with each tool showcasing distinctive capabilities.
Among the author's own startups are Unicorn Platform, ListingBott, SEO Bot AI, TinyAdz, catering to website building, directory listing, SEO blog generation, and B2B ad networks, respectively.

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Medium

258

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How I Created Stunning Movies with AI Technology

AI MovieMaker is a tool that helps create stunning cinematic movies with ease, making quality content creation accessible to all.
Users have reported generating income by creating promotional videos and short films through this platform, with some making up to $200 monthly from side projects.
The user-friendly interface of AI MovieMaker allows for easy navigation and quick entry into movie production, supported by online tutorials and forums for guidance.
By leveraging AI MovieMaker, individuals can enhance their storytelling skills, boost creative confidence, and explore new possibilities in the world of filmmaking.

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Dev

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Deploying a Web service with GCP compute & Terraform

GCP Compute is an on-cloud VM to run everything like your own machine.
Using Terraform, a GCP Compute Virtual Machine can be provisioned quickly by defining resource blocks in '*.tf' files.
After setting up the VM, a simple HTTP web server container can be deployed on GCP VM by using Docker and running a custom container for testing a web app.
Once the web app is running, it can be accessed using the ephemeral IP of the VM on port 8080 to make HTTP calls and retrieve the response.

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Dev

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React Native v0.80.0-rc in Focus: Key Changes You Should Know About

React Native 0.80.0-rc version brings a lot of changes including breaking changes, new features, bug fixes, deprecations, and other improvements.
Breaking Changes: Revamped Welcome Screen, Stricter Imports, Component Naming conventions, Android modules now in Kotlin, and iOS configuration helpers deleted.
New Features: Stricter TypeScript for enhanced checks, improved support, radial gradients, extended CSS color support, ESLint rule for preventing deep imports, and more.
Bug Fixes: Improved timers alignment, TypeScript typings, Switch component state, ListEmptyComponent rendering, font scaling, Android TextInput fixes, iOS ScrollView interactions, and more.
Deprecations & Removals: Several items deprecated or removed for Android and iOS platforms. Under the hood changes include Gradle and debugger updates.

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Dev

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Everything about Generics in Go

Generic programming allows writing code in strongly-typed languages with specified types provided later as parameters during instantiation.
Generics in Go are implemented through type parameters, allowing code to be applied to multiple types without redundancy.
Before generics, expanding requirements led to repetitive code changes, whereas generics solve this issue by enabling flexibility.
Basic syntax of generics in Go includes using type parameters in function and type definitions, and constraints like any and comparable.
The ~ symbol in Go generics represents underlying type constraints, ensuring type compatibility.
Type constraints like any, comparable, and ordered are used in Go generics for different type operations.
Generics are recommended for language-defined container types, general-purpose data structures, and generic method implementations.
Avoid using generics when interface types are sufficient, methods implementations differ, or reflection is needed for type operations.
A simple guideline to determine when to use generics: if you find repetitive code with only type differences, consider using type parameters.
Go syntax uses square brackets [] over angle brackets < > for generics to avoid ambiguity in parsing.

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Medium

249

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Powering Businesses with Contextual and Semantic Retrieval Systems

Contextual and semantic retrieval systems can greatly benefit businesses by enhancing customer experience through personalized product recommendations based on customer intent and context.
The use of contextual retrieval systems can lead to increased sales by offering more relevant suggestions to customers, encouraging them to explore products they may be interested in but didn't directly search for.
Personalization through contextual retrieval helps in tailoring searches and recommendations for each customer, thereby improving engagement and satisfaction by providing better product suggestions, advertising, and content.
Combining contextual and semantic strategies in models like LLMs enhances language understanding accuracy, particularly in complex scenarios, by interpreting concepts and intents across different contexts, resulting in more relevant and coherent outputs.

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Dev

271

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V8 Engine, JavaScript APIs, and XMLHttpRequest (XHR)

JavaScript relies on powerful engines and interfaces like the V8 engine, JavaScript APIs, and the XMLHttpRequest (XHR) object in host environments.
The V8 engine, developed by Google, compiles and executes JavaScript code, including features like JIT compilation and garbage collection.
JavaScript APIs provided by host environments like web browsers offer functionalities such as DOM manipulation, timers, networking, and storage.
XMLHttpRequest (XHR) is a browser API that enables asynchronous HTTP requests, with modern alternatives like the fetch() API also gaining popularity.

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Medium

108

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Best Top 11 Site Verified Binance Accounts — 100% Verified & Fast Delivery

Verified Binance accounts are being offered for sale with 100% non-drop guarantee, active status, and high-quality service for a cheap price.
Verification of Binance accounts is essential for accessing all platform features, requiring personal information, identification document, and proof of residence.
Benefits of having a verified Binance account include higher withdrawal limits, enhanced security, smoother transactions, and access to exclusive features.
The service provider highlights security, ease of use, customer satisfaction, and versatility as key attributes of their verified Binance accounts.

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Dev

267

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JavaScript Hoisting + Temporal Dead Zone made easy

JavaScript hoisting involves moving variable and function declarations to the top of their scope.
When using var, the variable is hoisted and initialized as undefined.
Variables declared with let and const are also hoisted but kept in the Temporal Dead Zone (TDZ).
TDZ is the time between when the scope starts and when the variable is declared, where you can't access the variable.
Function declarations are fully hoisted, allowing them to be called before declaration.
Function expressions like arrow functions follow TDZ rules and can cause errors if accessed before declaration.
Best practices include declaring variables at the top, using let and const over var, and structuring code to read top-down.
Using linters like ESLint can help catch TDZ bugs, and thinking of hoisting as JavaScript's pre-processing stage can aid in understanding behavior.
Understanding hoisting and TDZ can prevent unexpected errors and improve code quality in JavaScript.
Remembering the rules of hoisting and TDZ can make your code more predictable and easier to debug.

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