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Author: Toma Velev

Blogger on ProgramTom.Com/Dev
Feature Flags - Enable Functionality from the BackEnd

Feature Flags – Enable Functionality from the BackEnd

Posted on November 16, 2025November 16, 2025 by Toma Velev

Feature Flags let you turn features on/off dynamically from the BackEnd, without redeploying your app. They’re perfect when you want features to depend on server load, user profile, A/B tests, or any other dynamic condition. Below is a clean mental model you can directly apply (Flutter, Java backend, etc.). ✅ What Feature Flags Solve Feature…

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Integrating xAI Grok API with Spring Boot

Integrating xAI Grok API with Spring Boot

Posted on November 9, 2025 by Toma Velev

This guide walks you through integrating the xAI Grok API into a Spring Boot application. The Grok API is a RESTful service compatible with OpenAI’s API structure, making it straightforward to use for chat completions, text generation, and more. It powers models like grok-beta, grok-2-latest, and advanced ones like grok-3 or grok-4 (availability depends on…

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How to Progresively Integrate AI

How to Progresively Integrate AI

Posted on November 6, 2025 by Toma Velev

To Integrate AI into an existing system with specific requirements and logic, especially when moving from traditional tools to more advanced technologies like Large Language Models (LLMs) or other AI tools, requires a systematic and gradual approach. Here’s a high-level roadmap for Progresively integrating AI into your system: 1. Understand the Existing System Document Requirements:…

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What is AI Agent

What is an AI Agent

Posted on November 6, 2025 by Toma Velev

AI Agent is not something new or revolutionally – it is LLM combined with with sub-modules that execute the recommendations of it. The MCP (Model Context Protocol) and agent-style LLM workflows (like those in LangChain, LlamaIndex, CrewAI, AutoGen, etc.) can often be reduced to a planning → execution loop powered by an LLM, with tools…

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Flutter image scaling

Flutter image scaling

Posted on November 6, 2025 by Toma Velev

How Flutter handles images and asset density and scaling differently than Android’s legacy drawable-*dpi folders? Let’s break it down clearly 👇 🧩 1. How Flutter handles multiple resolutions Flutter doesn’t use the drawable-mdpi, drawable-hdpi, etc. system directly.Instead, it uses device pixel ratios (DPR) and asset variants. You can define image variants like this: And in…

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HTTPS traffic protection limits

HTTPS traffic protection limits

Posted on November 5, 2025 by Toma Velev

HTTPS adds protection to the content of your web traffic (what you send and receive) on an unsecured network, but it has limits – it is not a fully complete defense. There are important limits and remaining risks. What HTTPS does well What HTTPS does not fully protect against Practical advice (for users) Practical advice…

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Top Mobile App features that Users Love

Top Mobile App features that Users Love

Posted on November 5, 2025 by Toma Velev

User love for a mobile app often boils down to features that provide convenience, personalization, and reliability. Based on what users consistently value, here are the top mobile app features that drive engagement and satisfaction: 🚀 Core Features for a Great Experience These foundational elements are non-negotiable for a successful app: ✨ Features That Drive…

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In Flutter - how to have Horizontal Scroll View inside a Vertical Scroll View

In Flutter – how to have Horizontal Scroll View inside a Vertical Scroll View

Posted on November 5, 2025 by Toma Velev

You can have a horizontal scroll view (like a ListView or SingleChildScrollView with scrollDirection: Axis.horizontal) inside a vertical one — you just need to make sure Flutter knows how to size things properly so it doesn’t complain about unbounded height or conflicting scroll gestures.   ✅ Example: Horizontal Scroll Inside Vertical Scroll ⚙️ Key Points…

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How to implement theming with Flutter?

How to implement theming with Flutter?

Posted on October 26, 2025 by Toma Velev

Theming in Flutter is primarily implemented using the ThemeData class and the Theme widget, allowing you to define a consistent look and feel across your entire application. 🎨 Implementing Theming in Flutter Define ThemeData: Create one or more instances of the ThemeData class, typically for a light and a dark theme. The most important properties…

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The Harderst problem in Software Start-up

The Harderst problem in Software Start-up

Posted on October 26, 2025 by Toma Velev

The Hardest Problem issue isn’t building the software; it’s finding the right audience with a strong enough pain, offering them a solution they value highly, and then effectively convincing them to pay for it. 1. The Value & Pricing Trap (The “Too Little Value” Problem) Many startups struggle to convey or deliver enough value to…

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