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Day 16/200 (Full stack)

Day 16 of 200 Days of Code focused on learning box shadows and CSS variables.
Box shadows in CSS provide depth and style to elements by adding drop shadows.
CSS variables offer maintainability and consistency by allowing values to be defined once and reused.
The learning session emphasized consistency and incremental progress in the coding journey.

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Medium

429

Leetcode #202: Happy Number

The Happy Number problem asks us to determine if a given positive integer n is a happy number, defined by repeatedly replacing the number with the sum of the squares of its digits until it reaches 1 or enters a cycle.
Implemented getNext transformation calculates the sum of squares of a number's digits efficiently.
Cycle detection involves using a HashSet to store generated numbers, checking for repeats before calculating the next number to identify cycles.
Utilizing Floyd’s Cycle-Finding Algorithm provides an optimized O(log N) time complexity and O(1) space complexity solution for the Happy Number problem.

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Dev

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Grok 3 Interviews Kiponos.io Founder: The Magic of Real-Time Config Management

Kiponos.io founder Moshe discusses how the platform tackles configuration management chaos by providing real-time configuration management for developers and DevOps teams.
Developers can manage all their settings in one place using Kiponos.io's SDK, defining configurations in the Web Admin, setting up environments, and generating tokens to specify the environment to use, with instant synchronization of changes via WebSockets.
An example of managing DATABASE_URL across environments is provided, showcasing how Kiponos.io enables real-time updates without the need for restarts, making life easier for DevOps teams.
Upcoming features like 3D Task Management, AI/LLM integration, multiplayer games, and real-time pages for various functionalities are teased by Moshe, encouraging developers to try Kiponos.io and explore its future of development tools.

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Dev

407

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Daily JavaScript Challenge #JS-190: Rotate a Matrix 90 Degrees Clockwise

Daily JavaScript Challenge: Rotate a Matrix 90 Degrees Clockwise
Challenge involves rotating an N x N matrix clockwise by 90 degrees in place.
Developers are encouraged to write a solution, test it, and share their approach.
Join the discussion and share your thoughts on the challenge. Documentation and test cases provided.

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Dev

174

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Start Thinking Like a Chef

Many indie devs and startups make the mistake of copying their VC-funded competitors feature by feature, which leads to burnout.
Instead of copying features, focus on fixing what sucks about existing products to differentiate yourself.
The key is to offer relief from common pain points like bad support, terrible pricing, and complexity.
Winning in a crowded market involves identifying what users dislike about market leaders and excelling in those areas.

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Dev

420

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Building Smarter AI Workflows with Azure AI Foundry and AutoGen: Guide to Collaborative AI Agents

The article discusses how combining Azure AI Foundry with AutoGen can lead to the creation of efficient and intelligent AI workflows through collaborative AI agents.
Traditional AI models are evolving into multi-agent systems where specialized AI agents cooperate to achieve common goals, offering enhanced autonomy and problem-solving capabilities.
Azure AI Foundry provides scalable infrastructure and robust MLOps tools for building, deploying, and managing custom AI models at an enterprise level.
AutoGen, developed by Microsoft Research, simplifies orchestration and automation of multi-agent conversations, empowering agents to communicate, automate workflows, and integrate external tools.
By combining Azure AI Foundry and AutoGen, users can deploy scalable and secure agents on Azure infrastructure, manage models centrally, streamline MLOps, and accelerate development of intelligent agent interactions.
The article provides a conceptual example of building a collaborative AI workflow involving agents like User Proxy, Data Analyst, Python Coder, and Report Writer using AutoGen.
The workflow includes defining agents, initiating a multi-agent conversation, orchestrating group chat, and eventually deploying the solution on Azure AI Foundry for monitoring and management.
The integrated approach offers benefits such as accelerated problem-solving, reduced human effort through automation, enhanced adaptability, scalability, reliability, and improved governance of AI solutions.
By leveraging Azure AI Foundry and AutoGen, organizations can create autonomous AI workflows that drive efficiency and innovation, leading to collaborative and powerful artificial intelligence utilization.

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Infoq

380

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Java News Roundup: Java Turns 30, Hibernate ORM 7.0, Embabel, jaz, Open Liberty, Eclipse DataGrid

This week's Java roundup for May 19th, 2025 features Java's 30th birthday celebration, Hibernate ORM 7.0 release, Open Liberty May 2025 edition, JobRunr 8.0 beta release, and the introductions of Embabel, jaz, and Eclipse DataGrid.
OpenJDK ramps up for JDK 25 with JEP advancements including Compact Object Headers and Vector API, while jtreg 7.5.2 for JDK Regression Test Harness sees updates for test configurations.
JDK 25 Build 24 early-access features bug fixes and developers are urged to report bugs via the Java Bug Database. Jakarta EE progress towards versions 11 and 12 are on schedule.
Spring Framework teams deliver various GA releases and Spring Data plans to optimize repository startup times with Ahead-of-Time compilation in version 4.0.
Microsoft Azure introduces jaz, a Java Command Launcher for resource management in cloud deployments. Open Liberty 25.0.0.5 includes bug fixes and enhancements for MicroProfile Telemetry 2.0.
Quarkus MCP Server 1.2.0 supports streamable HTTP with plans for enhanced features. Hibernate ORM 7.0.0.Final and Hibernate Validator 9.0.0.Final releases bring new features and support for Jakarta Persistence 3.2.
Rod Johnson introduces the Embabel Agent Framework for the JVM, and JobRunr 8.0.0 beta release offers new features for job scheduling. Eclipse DataGrid is a new open-source project aimed at in-memory data processing for distributed applications.

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Medium

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Breathalyzer – Handheld Alcohol Detector for Safe Driving and Household Use

The Breathalyzer Handheld Alcohol Detector is a portable and accurate device for measuring alcohol concentration in breath.
Key features include a compact design, advanced sensors for precise results, LCD digital display, and USB rechargeable battery.
It is ideal for both drivers and households to monitor alcohol consumption and promote responsible behavior.
The device promotes safety, reduces the risk of accidents, provides convenient and reliable results, and is essential for making smarter choices on the road.

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Medium

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Google Adk + MCP + RAG + Ollama = The Key To Powerful Agentic AI

Google introduced the Agent Development Kit (ADK) at the Google Cloud Next conference, aiming to aid developers in creating powerful AI agents.
ADK simplifies the development of intelligent agents by offering features like large model selection, automated process orchestration, and support for two-way audio, video, MCP, and the A2A protocol.
This open-source toolkit enables developers to build complex AI agents with minimal code requirements, such as creating a voice customer service agent with just over 100 lines of code.
AI agents, which act autonomously to achieve specific goals, are increasingly utilized in various applications, enhancing user experiences and completing tasks efficiently.

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Dev

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A quick guide to push notifications with expo-notifications and Firebase

Implementing push notifications with Expo-notifications and Firebase involves leveraging Expo's ecosystem strengths and Firebase Messaging to handle notifications in foreground and background.
Configure Google Services and push notifications in the app.json file, setting up necessary permissions and notification channels.
Resolve potential build errors by adjusting Android values in the AndroidManifest.xml file for @react-native-firebase/messaging.
Start listening to messages from Firebase by requesting permissions, registering the device, and obtaining the FCM token.
You can send messages from the Firebase console to test notifications functionality.
Handle foreground messages using expo-notifications to display push notifications even when the app is in use.
Create listeners for handling background messages and controlling app interactions when notifications are opened.
Implement a hook to register the device, save the token securely, and handle push notification configurations.
Utilize the hook to configure push notifications by registering the device with a bearer token.
This guide provides a comprehensive approach to setting up push notifications using Expo and Firebase, ensuring effective notification management.

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Dev

402

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Migrating from WebForms to WebForms Core

This video tutorial focuses on migrating from Microsoft's WebForms to Elanat's WebForms Core technology.
The migration offers advantages like modern architecture, cross-language compatibility, improved performance, event-driven structure, efficient data handling, and enhanced control over HTML components.
WebForms Core eliminates the need for front-end frameworks by handling DOM elements directly from the server.
It supports multiple programming languages and provides faster page loads, reduced server load, and optimized data transmission.

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Dev

411

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A Quadriplegic Developer’s Story: From Nursing Home to Production Deployments

Matt, a C5 quadriplegic, went from a fishing accident that left him paralyzed to becoming a self-taught full-stack developer.
Through persistence and learning to code one key at a time on an old Windows PC, he regained control of his life and now builds projects using a MacBook, voice commands, styluses, and AI.
Some of the projects Matt is proud of include his flagship portfolio site, an AI chat widget, an art mover app for a client, and a fundraising platform to help him escape the nursing home.
Matt is open to feedback, opportunities, and collaborations in the development field, and encourages others facing challenges to never stop pushing forward.

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Dev

340

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Zero-Downtime MySQL Migration to Aurora Using AWS DMS and Binlog Replication

Migrating MySQL databases to Amazon Aurora RDS can simplify operations with high availability and scalability benefits.
Two proven backup and restore approaches are discussed in the guide for migration: Percona XtraBackup and mysqldump to Amazon S3.
Percona XtraBackup is recommended for large, same-version migrations for faster and consistent snapshots with binary log position.
For lighter or version-sensitive migrations, mysqldump and S3 upload method is suggested.
In case of MySQL version mismatch, a staged migration approach using AWS DMS is advised.
Handling DEFINER clauses in stored logic objects is crucial to prevent import failures and replication issues during migration.
Setting up replication from MySQL source to Amazon Aurora involves enabling binary logging, creating a replication user, and monitoring replication status.
Best practices before replication or cutover include setting binlog_format=ROW, read_only=ON, adjusting buffer pool size, and monitoring replication lag.
CloudWatch is recommended for monitoring AuroraReplicaLag, and testing workloads in a non-prod clone of Aurora before cutover.
The guide also covers post-restore validation in Aurora, recreating DEFINER users, and configuring external replication in Aurora.
Additional steps like promoting Aurora to handle app writes and using CloudWatch alarms for replication lag are outlined for a successful cutover.

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Dev

286

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Static Sites on Steroids: Deploy React/Vue/Angular in Seconds & Supercharge Them with CDNs 🚀

Static sites based on React, Vue, or Angular can be deployed easily and optimized for performance using CDNs like Cloudflare or AWS CloudFront.
Static sites offer advantages such as speed, security, and scalability, making them ideal for web development.
Popular hosting platforms like Vercel, Netlify, and GitHub Pages offer easy deployment options for different frameworks and technologies.
Utilizing CDNs like Cloudflare or AWS CloudFront can significantly improve the speed and performance of static sites, resulting in better user experience and higher Lighthouse scores.

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Dev

108

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product Management Dashboard UI – Clean and Responsive

Developer shares custom Product Management Interface for admin dashboard with clean and user-friendly design.
Features include image upload, color and size selection, price input, stock status, and product variants table.
Technologies used: HTML5, CSS3, JavaScript, Font Awesome. Responsive design with mobile-first approach.
Ideas for enhancement: Backend integration, field validation, multilingual support, modal-based editing, drag-and-drop functionality.

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