Featured image of post Can't Cancel Google One (Gemini)? Explaining the Correct Withdrawal Method

Can't Cancel Google One (Gemini)? Explaining the Correct Withdrawal Method

We explain the correct cancellation procedure to prevent the 2,900 yen/month Google One membership from automatically continuing after the 1-month free trial of Gemini ends. If you are troubled by 'cannot cancel', please refer to the withdrawal method in this article.

Featured image of post [C++] New Year's Card App Development Stream VOL.1: Environment Setup and Direct2D Initialization

[C++] New Year's Card App Development Stream VOL.1: Environment Setup and Direct2D Initialization

The first YouTube stream of developing a New Year's card creation app using C++. We explain the steps for setting up the foundational environment for app development with source code, from creating a GIT repository to displaying the main window, initializing Direct2D, and implementing HelloWorld.

Featured image of post A Must-See for Windows App Developers! How to Attach a Self-Signed Certificate to MSIX and Install Locally

A Must-See for Windows App Developers! How to Attach a Self-Signed Certificate to MSIX and Install Locally

A clear explanation with PowerShell commands of the specific steps to create and attach a self-signed certificate instead of a commercial one for MSIX packages, which are convenient for test distribution of Windows apps, making them installable in a local environment.

Featured image of post Low-Code Tool 'LogicPad' Development Secret Story: Why Was This Created?

Low-Code Tool 'LogicPad' Development Secret Story: Why Was This Created?

The birth story of 'LogicPad', a low-code tool for 'people who can't write code but have logic'. The author passionately talks about their personal thoughts behind the development and their approach to their career.

Featured image of post How to Batch Delete Metadata (Personal Information) in Excel and Word with PowerShell

How to Batch Delete Metadata (Personal Information) in Excel and Word with PowerShell

Explains how to delete metadata such as the creator included in Office files using PowerShell. Introduces convenient automation techniques to prevent information leakage when sharing externally, from processing a single file to a batch deletion script for Excel and Word files in a folder.

Featured image of post A 400-Year Mystery! What is the Kepler Conjecture? Explaining the Romance of Mathematics Learned from Packing Watermelons

A 400-Year Mystery! What is the Kepler Conjecture? Explaining the Romance of Mathematics Learned from Packing Watermelons

An easy-to-understand explanation of the 'Kepler Conjecture', a difficult mathematical problem born from the familiar question: 'What is the tightest way to pack watermelons?' Let's learn together about the romance and fascination of this sphere-packing problem proposed by genius astronomer Kepler, which went unproven for over 400 years.

Featured image of post The Wall of AI Development Was High... The Reality and Why App Creation is 'Hell After the 8th Station'

The Wall of AI Development Was High... The Reality and Why App Creation is 'Hell After the 8th Station'

Is the era of 'making apps easily by asking AI' real? Even if it's a breeze up to the 8th station with no-code or AI-generated code, a human-crying hell of final adjustments and bug fixes awaited after that. We candidly talk about the real pitfalls of AI development and the true nature of the 'wall' you face.

Featured image of post [With Samples] How to Call Windows.AI from C++ and Execute ONNX Models

[With Samples] How to Call Windows.AI from C++ and Execute ONNX Models

Access AI features utilizing the Windows standard Windows ML! We clearly explain the specific steps, with sample code, to call 'Microsoft.Windows.AI' from the C++ environment of Win32 apps and execute AI models in ONNX format.

Featured image of post Run TinyLLaMA in C++! Local LLM Environment Setup Guide Using llama.cpp

Run TinyLLaMA in C++! Local LLM Environment Setup Guide Using llama.cpp

Explains the setup steps to call and run TinyLLaMA from C++. Summarizes the process from building llama.cpp and acquiring the model from HuggingFace to building methods in various environments, in a way that is easy to understand for beginners.

Featured image of post How to Post Messages Using Slack API and OAuth2 (C++ Implementation Example)

How to Post Messages Using Slack API and OAuth2 (C++ Implementation Example)

Explains how to post messages via the Slack Web API using a Slack App's OAuth token. Introduces everything from scope configuration and access token retrieval steps to specific C++ implementation code examples using WinHTTP.

Featured image of post [WinHTTP] How to Post Messages to Slack via Webhook from C++ (Win32 API)

[WinHTTP] How to Post Messages to Slack via Webhook from C++ (Win32 API)

For those who dare to want to automatically post to Slack using 'C++ x Win32 API x WinHTTP' instead of Node.js or Python! We clearly explain the specific steps to send messages with POST requests from C++ utilizing Incoming Webhooks.

Featured image of post What is the Difference Between Market-in and Product-out? Easy Explanation of Pros and Cons

What is the Difference Between Market-in and Product-out? Easy Explanation of Pros and Cons

We easily explain the meanings and differences between 'market-in' and 'product-out', often used in business and planning, using examples like a ramen shop. Learn the advantages and disadvantages of each to consider strategies suited to your situation.

Featured image of post What is the Collatz Conjecture? Verifying a Mathematical Unsolved Problem Where Any Number Eventually Reaches 1 in Python

What is the Collatz Conjecture? Verifying a Mathematical Unsolved Problem Where Any Number Eventually Reaches 1 in Python

Will repeating 'halve if even, multiply by 3 and add 1 if odd' always result in 1? An easy-to-understand explanation of the mysterious rules behind the famous unsolved mathematical problem, the 'Collatz Conjecture'. Furthermore, we'll write a Python program to simulate and see if sequences actually converge to 1.

Featured image of post [Automation] Post Messages to Teams from C++! Implementation Steps for Graph API and WinHTTP

[Automation] Post Messages to Teams from C++! Implementation Steps for Graph API and WinHTTP

A must-see for those who want to implement automated message posting to Microsoft Teams from C++! We provide a step-by-step, easy-to-understand explanation of specific C++ code examples using WinHTTP and Graph API, as well as the essential Azure app registration and API authentication steps.

Featured image of post Optimizing Required Marks in Input Forms | Best Practices from Global UI Guidelines

Optimizing Required Marks in Input Forms | Best Practices from Global UI Guidelines

We explain best practices for 'required field' marks in web forms based on global UI guidelines. We summarized the correct use of asterisks (*), clearly stating 'Required', and how to utilize ARIA attributes to improve accessibility.

Featured image of post How to Install Gemini CLI on Windows | Thorough Explanation from Node.js

How to Install Gemini CLI on Windows | Thorough Explanation from Node.js

A beginner-friendly explanation on how to install the 'Gemini CLI', which allows you to use Google's generative AI 'Gemini' from the command line, on a Windows environment. We detail the procedure from Node.js and npm preparation to execution in PowerShell.

Featured image of post Report on Re-awarding Microsoft MVP (2025-2026) and Past Activities

Report on Re-awarding Microsoft MVP (2025-2026) and Past Activities

A report on receiving the Microsoft MVP (2025-2026) for the 9th time in total. Along with an explanation of the MVP program that contributes to technical communities, I provide a reflection on the technical information dissemination and community activities I have focused on over the past year.

Featured image of post Windows App Development with Win32API + C++! Pros and Cons from an Active Engineer

Windows App Development with Win32API + C++! Pros and Cons from an Active Engineer

An active engineer explains the pros and cons of Windows app development using 'Win32API + C++'. Introduces the unique appeal of native development, such as ultra-fast execution speed, highly flexible control, and ease of distribution without requiring runtimes, as well as the challenges of learning it.

Featured image of post Easy with vcpkg! How to Install OpenSSL-compatible libcurl in Visual Studio

Easy with vcpkg! How to Install OpenSSL-compatible libcurl in Visual Studio

Explains the steps to introduce OpenSSL-compatible libcurl into a Visual Studio environment using 'vcpkg', a convenient package management tool for C++ development. It allows for smooth resolution of builds and dependencies.

Featured image of post 6 Measures to Avoid Falling for Conspiracy Theories | Enhance Your Mental Security

6 Measures to Avoid Falling for Conspiracy Theories | Enhance Your Mental Security

We explain how to prepare 'mental security' necessary to avoid being drawn into online conspiracy theories. It provides hints for wisely surviving modern internet society, such as the ability to hold off connecting anxiety with answers directly, and tips for gathering information to prevent confirmation bias.