Blog Archive

NumPy Basics for Deep Learning: +, -, *, /, **, Comparisons, sum/mean/max/min, and axis Dec 16, 2025 NumPy Indexing & Slicing: Mastering Tensor Manipulation Dec 16, 2025 NumPy ndarray Basics for Deep Learning Beginners: array, dtype, shape, reshape, astype Dec 15, 2025 NumPy for Deep Learning Beginners: Why It Comes Before PyTorch Dec 15, 2025 Linux Task Scheduling: Comparing cron and systemd timers Dec 12, 2025 What Does the First Line of a Linux Script Mean? #!/usr/bin/env bash vs #!/bin/bash – Differences and Usage Dec 12, 2025 ORM, @property, and Celery Debugging: Encrypted Fields and FieldDoesNotExist Issues Dec 11, 2025 Practical Guide to Nginx Load Balancing Dec 11, 2025 Understanding the Difference Between _, __, and . in Django ORM: When to Use user_id, user.id, or user__id? Dec 10, 2025 What Is a Reverse Proxy? A Quick Guide to Forward vs. Reverse Proxies, Their Purposes, and Use Cases Dec 10, 2025 Desktop System Fan Replacement Review: What a Server Admin Learned by Doing It Yourself Dec 09, 2025 Ensuring Server‑to‑Server Integrity with HMAC Signatures in Django/DRF Dec 09, 2025 Lessons from the React RCE Incident: Why HMAC Signatures, Key Rotation, and Zero Trust Matter Dec 08, 2025 React RCE Vulnerability (CVE-2025-55182): What Went Wrong and Why It Happened Dec 08, 2025 Why Edge Includes Safari in Its User-Agent Dec 05, 2025 Malicious Bots Won’t Stop—Let’s Cut Them Off at the Front with Nginx: Cleaning Up Weird URLs Early Dec 05, 2025 Why Is Cloudflare Free? Understanding CDN Mechanics and the Business Model Dec 05, 2025 Linux /usr Directory, the Butterfly Effect of a 50-Year-Old Hardware Incident Dec 05, 2025 The True Identity and Role of the `/usr` Directory in Linux Filesystems Dec 05, 2025 Linux AppImage: One‑File Desktop App Distribution Dec 05, 2025 Deploying Web Applications on Linux: Rethinking Docker in Favor of systemd.service Dec 05, 2025 Why VPNs Are Essential for Web Developers: Beyond Security to Service Quality Dec 04, 2025 Lightweight Docker Images with Django and Tailwind CSS: A Multi‑Stage Build Strategy Dec 04, 2025 Why gedit Reigns Supreme on Linux: The Everyday Tool for Notes and Code Snippets Dec 04, 2025 The Awkward Gap Between Developers and Official Documentation Dec 03, 2025 Safely Storing Secret Keys in Django Models (Fernet Edition) Dec 03, 2025 Using Django ORM’s F Expressions: Powerful Features and Real‑World Examples Dec 03, 2025 How to Fix Timing Bugs in EasyMDE + Alpine.js: Hidden DOM and Initialization Conflicts Dec 02, 2025 Mameshiba's Mini-Game - Part 3 - Members and Character Settings Nov 28, 2025 MAME RUN!! Behind the Scenes – Technical Edition Nov 28, 2025 Mameshiba no Taigun Mini Game - MAME RUN!! Production Review - Part 1 Nov 28, 2025 Beyond the GGUF Era: A New Horizon in Local AI Research with DGX Spark Nov 26, 2025 The Foundation of LoRA Fine-Tuning Always Starts with the Dataset Nov 25, 2025 What is Alpine.js? A Comparison with Vanilla JS Nov 24, 2025 Web Services in the AI Era - Why Staging is Essential? A Must-Read Guide for Beginners and Solo Web Developers Nov 24, 2025 Anaconda? Miniconda? What Should You Start With? A Practical Guide to Managing conda Environments with Miniconda Nov 24, 2025 Is Your SSH Server Secure? A Deep Dive into SSH Server Logs for Hacking Signs Nov 24, 2025 What is HTTP/1.1 and HTTP/2? When should we use which? Nov 23, 2025 Understanding `tests.py` for Django Developers Nov 23, 2025 Backend Engineers Should Know at Least This Much - Top 5 Frontend JS Methods and Modules Nov 23, 2025 Confronting the Essence of Django - Why `HttpResponse` is the 'Fundamental' Nov 22, 2025 SSH: A Complete Guide from Concepts to Practical Security Settings Nov 21, 2025 The Shift from CPU to GPU - Why Does AI Love 'Matrices'? Nov 21, 2025 Unicode - The Digital Promise that Holds All the World's Characters Nov 21, 2025 The Most Basic Way to Communicate with Computers - The Secret of ASCII Code Nov 21, 2025 Understanding and Utilizing Python Wheel to Speed Up Docker Builds Nov 20, 2025 The New Standard for Storing AI Models: Concepts and Advantages Nov 20, 2025 Complete Guide to GGUF Format - The New Standard for Local LLMs Nov 20, 2025 The Secret of LoRA Model Updates - Techniques of Fine-Tuning Similar to Human Memory: Forgetting and Review Nov 19, 2025 Analysis of FLUX1-dev 12B LoRA Fine-tuning Results - 250 vs 1000 Steps, Who is the Winner? Nov 19, 2025 Practical Experience of Fine-Tuning FLUX 1-dev 12B LoRA on DGX Spark - The Light and Dark of Low-Power, High-Efficiency Training Nov 19, 2025 The Key to Efficient AI Fine-Tuning - A Comprehensive Guide to LoRA Nov 19, 2025 A Comprehensive Guide to Python's `urlparse()` - The Essential Tool for URL Analysis Nov 18, 2025 Redis AOF - When It's Okay to Turn It Off for Performance Nov 18, 2025 Why is the pop() Method Everywhere in Python? Nov 17, 2025 Essential Knowledge for SPA and React - A Complete Guide to Browser Storage Nov 17, 2025 Understanding Python `@classmethod` Properly - When and Why Should We Use It? Nov 17, 2025 The Hidden Ally of Image Generation Models - CLIP and Advanced Prompt Strategies Nov 17, 2025 Django's HTML Guardian - Unpacking 'django.utils.html' Nov 14, 2025 Mastering Text Manipulation in Django - 'django.utils.text' Nov 14, 2025 The Magic of Time Management in Django - A Complete Guide to 'django.utils.timezone' Nov 14, 2025 Django's HTTP Utility - 'django.utils.http' Nov 12, 2025 Understanding Django's Time Solver 'dateparse' Nov 12, 2025 Exploring django.utils.cache Nov 12, 2025 Understanding 'Zombie Processes' Found in Linux Top: Their Identity and Solutions Nov 12, 2025 Why Running a Container as Root Is Not Recommended? Nov 10, 2025 Reasons to Hide Admin Right Now Nov 10, 2025 Why Should We Copy Docker Volumes? Nov 10, 2025 Analyzing Image Layers and Optimizing with Docker History Nov 10, 2025 Proper Use of datetime and Timezone in Django Nov 10, 2025 PostgreSQL Docker Compose Environment Variables - Distinguishing Required and Optional Nov 06, 2025 Understanding Docker Shared Memory (shm_size and ipc) Perfectly Nov 05, 2025 How to Use Django's get_valid_filename Function Nov 04, 2025 A Comprehensive Guide to django.core.signing - Preventing Data Tampering Nov 04, 2025 3 Pythonic Moments That Turn Code into Art Nov 04, 2025 The Role and Use of Python __init__ Nov 04, 2025 Implementing One-Time Tokens and the Pitfalls of `max_age` in Django Signing Nov 04, 2025 All About Docker Filtering Nov 04, 2025 Where are Docker logs stored? Nov 04, 2025 Docker: Communicating Between Containers Using Host Ports Without Network Sharing Nov 04, 2025 To Developers Obsessed with Python - Sometimes Bash Scripts are Faster and More Powerful Aug 06, 2025 Docker Installation Guide: Installing Docker and Docker Compose on Ubuntu Server Jul 24, 2025 Creating Your Own Automated Deployment System with GitHub Webhooks ⑤ Nginx, HTTPS Configuration, and Final Integration Jul 24, 2025 Creating Your Own Automated Deployment System with GitHub Webhook ④ Deployment Handler Details and Registering as a Systemd Service Jul 22, 2025 Building Your Own Automated Deployment System with GitHub Webhook ③ Staging Server Environment Setup and FastAPI Webhook Server Basics Jul 22, 2025 My Automated Deployment System Using GitHub Webhook ② Overall Architecture and Process Design Jul 21, 2025 Creating Your Own Automated Deployment System Using GitHub Webhook ① Why Implement It Yourself? Jul 21, 2025 Liberation from Excel Tasks: Automate Your Work with pandas, You Can Do It Too Jul 16, 2025 Is pandas really derived from the panda? Jul 16, 2025 Public Wi-Fi: How to Use it Safely - Prepare Your Digital Shield Jul 15, 2025 Public Wi-Fi: The Sweet Temptation with Hidden Shadows – Is Your Data Safe? Jul 15, 2025 Web Crawling Bots: Distinguishing Beneficial Entities from Harmful Intruders Jul 15, 2025 The Hidden Heroes of Image Optimization: The `width` and `height` Attributes and Core Web Vitals Improvement Strategies Jul 14, 2025 Key to Web Performance Optimization: A Guide to Implementing Lazy Loading Images Jul 14, 2025 The 'Warm Kindness' of Spaniards – A Comparison with Korea, Japan, and the UK Jul 11, 2025 Spain Trip - The Allure of a Cashless Society Jul 11, 2025 22 Years Later, Reunion with Spain's AVE High-Speed Train: A Remarkable Journey Jul 10, 2025 The Hot Subway of Spain and the Character of the City Discovered Through Public Transport Jul 10, 2025 Reunion in Spain After 22 Years: The Start of Excitement and Challenges Jul 10, 2025 NVIDIA Challenges the CPU Market Beyond GPUs! A New 'Superchip' Strategy in the AI Era Jun 27, 2025 ARM: A CPU Architecture Threatening x86, Extending Beyond Mobile to Servers Jun 27, 2025 Understanding the CPU: A Dive into x86, x64, and the Intel vs AMD Story Jun 27, 2025 A Developer Stuck in Manual Coding Shocked by AI Coding: Productivity Beyond Imagination! Jun 26, 2025 Managing Server Files via SSH without Terminal: Utilizing SFTP and GUI File Explorers! Jun 24, 2025 First Steps in Automating SSH Connections: Mastering the Config File Jun 24, 2025 Python vs Node.js: CSS Compression Experiment Results Revealed! Jun 23, 2025 SSH Reverse Port Forwarding: The Magic of Connecting from External to Internal (feat. -R option) Jun 21, 2025 Types and Features of Shells Available with the -s Option of the useradd Command Jun 21, 2025 How to Use SSH: Mastering Commands and Useful Options! Jun 19, 2025 SSH Keygen: The Perfect Guide for Beginners Jun 19, 2025 How to Untrack Existing Files When .gitignore Isn't Working Jun 19, 2025 A Developer's Honest Review After Leaving VScode for Neovim - The Overwhelming Freedom of Lightness! Jun 18, 2025 In-depth Exploration of Celery's apply_async() and Its Relationship with delay() Jun 18, 2025 Essential Neovim Commands Jun 17, 2025 Using Local Clipboard on a Remote Server with Neovim via SSH (OSC52) Jun 17, 2025 The Magic of Celery: Unveiling the `delay()` Function Jun 13, 2025 Exploring Class-Based Views (CBV) Series ⑧ - Deep Dive into Pagination and Search Functionality – Extending ListView Jun 13, 2025 Exploring Class-Based Views (CBV) Series ⑦ - Utilizing Mixins and Permission Management Jun 11, 2025 Exploring Class-Based Views (CBV) Series ⑥ - How to Use TemplateView & RedirectView Jun 09, 2025 Exploring Class-Based Views (CBV) Series ⑤ – Implementing CRUD with CreateView, UpdateView, and DeleteView Jun 08, 2025 Exploring Class-Based Views (CBV) Series ④ - How to Use ListView & DetailView Jun 07, 2025 Exploring Class-Based Views (CBV) Series ③ - Simplifying Form Handling with FormView May 30, 2025 Exploring Class-Based Views (CBV) Series ② - Understanding Django's Basic View Classes May 26, 2025 Exploration Series of Class-Based Views (CBV) ① Reasons to Transition from FBV to CBV and the Developer's Mindset May 23, 2025 Effective Operation of Fail2Ban: Practical Security Strategies to Avoid Excessive IP Banning May 21, 2025 Why Django is Back in Focus in the Age of AI May 18, 2025 The Most Pythonic Way to Retrieve Values that Meet Conditions: next() May 16, 2025 Try Except Strategies for Python Beginners – Making Debugging Easy with Exception Handling! May 15, 2025 Comparison of AI Automation Tools: A Guide to Selecting the Optimal Model from GPT-4o to o1-pro May 13, 2025 AI Voice Recognition War: Whisper vs Parakeet – Who's the Winner of Real-Time Transcription? May 13, 2025 DGX Spark vs RTX 4090 – A Practical Choice for On-Premise AI Infrastructure Optimization May 12, 2025 NVIDIA DGX Spark - The New Standard for On-Premise AI Infrastructure May 12, 2025 Mistral Small 3.1 Analysis – Setting the Standard for High-Performance Compact LLMs May 09, 2025 Mastering Python Standard Library 3 - pathlib May 08, 2025 Mastering the Python Standard Library ② - collections.defaultdict May 08, 2025 Mastering the Python Standard Library① - collections.Counter May 07, 2025 Pythonic Ways to Handle Conditionals May 06, 2025 What to Do When Apps Installed via APT Don’t Appear in the Menu? How to Solve It with Alacarte May 06, 2025 APT vs Snap: Comparison and Selection Criteria for Linux Package Systems May 06, 2025 Reviving an Old PC from the Warehouse – A Guide to Dual Booting Linux May 02, 2025 What is Hibernation? The Pros and Cons of Windows Power Management Features May 02, 2025 Blog Automation Completed with AI: Mikihands' New Writing Innovation May 01, 2025 Analysis of MIME-type Inference Errors When Uploading Images from iOS X App Apr 29, 2025 Mameshiba no Taigun is Evolving with Reload! Apr 29, 2025 The Golden Presence of Mameshiba no Taigun, Leona Empire Apr 28, 2025 Conda Command Cheat Sheet Apr 28, 2025 Experience of Safely Integrating Nextcloud, Obsidian, and iPhone Apr 28, 2025 The Guardian of Your Linux Server: Fail2Ban Apr 27, 2025 Desktop Remote Power On with Raspberry Pi (Wake-on-LAN Automation) Apr 27, 2025 Problems and Solutions When Using gettext_lazy with JSON Keys Apr 26, 2025 Getting Started with Anaconda, Miniconda, and the World of Conda Apr 25, 2025 Understanding the DNS Resolver Architecture in Ubuntu Apr 23, 2025 Django on_commit + Celery, Troubleshooting in a Replica Environment Apr 21, 2025 Analysis of on_commit + Celery + ManyToMany Delay Issues in Replica Environments Apr 20, 2025 Django Transactions and Thread Pitfalls: The Early Execution Issue of on_commit() Apr 20, 2025 Complete Guide to Understanding transaction.on_commit() Apr 20, 2025 Setting Up a CUDA Environment for AI Development Apr 20, 2025 Implementing Simple Asynchronous Processing with Python threading.Thread Apr 20, 2025 What is CUDA? The Beginning of GPU and Parallel Computing Apr 20, 2025 Upgrading PostgreSQL and Safe Data Migration Apr 15, 2025 Comprehensive Guide to Setting Up a C++ Development Environment with VSCode on Ubuntu Apr 15, 2025 The Evolution of Model Choice Definitions: An Overview of the TextChoices Class Apr 15, 2025 Docker Frequently Used Commands Cheat Sheet Apr 10, 2025 Customizing the 404 Error Page in Django Apr 07, 2025 How to Utilize OTF Fonts from Ubuntu Systems for Web Use Apr 07, 2025 TTF vs WOFF2: Comparison of Web Font Formats Apr 07, 2025 Applying Poppins and sans-serif Fonts Reliably in Django Web Projects Apr 07, 2025 Night View of Jiufen, Taiwan Apr 01, 2025 Mastering the Basics of Python #1 — `None` and `""`: They Look Similar but Are Different Apr 01, 2025 The Truth and Limits of CSR 4.0 Dongles, and Alternatives in Linux Mar 31, 2025 How to Determine Browser Width in JavaScript and the Strange Experience I Had with Samsung Browser Mar 20, 2025 Redis Latest AOF-RDB Hybrid Method vs Traditional AOF Method: Which Should You Choose? Feb 19, 2025 Is RDB Configuration Meaningless When Using AOF? Feb 18, 2025 Redis AOF Rewrite: Performance Optimization and Data Preservation Feb 17, 2025 JSON vs YAML: The History of the Data Format War Feb 06, 2025 Building a Mail Server on Linux: A Breather Page Feb 06, 2025 Building a Mail Server on Linux #7: Postfix Configuration File Structure and Database Integration Feb 06, 2025 Setting Up a Mail Server on Linux #6: Configuring Dovecot's auth-sql.conf.ext and Password Hashing Feb 06, 2025 Building a Mail Server on Linux #5: The Concept of Dovecot Virtual Users and PostgreSQL Table Design Feb 06, 2025 Building a Mail Server on Linux #4: Analyzing the Essential Dovecot Configuration Files Feb 06, 2025 Building a Mail Server on Linux #3: Dovecot Configuration File Structure and Application Feb 05, 2025 Building a Mail Server on Linux #2: Essential Packages for Virtual User Environment Feb 05, 2025 Building a Mail Server on Linux #1: Understanding the Concepts of Postfix and Dovecot Feb 05, 2025 Django-Celery-Beat: Setting Up Scheduled Tasks Using Crontab and Clocked Feb 03, 2025 Django-Celery-Beat: Practical Example of Scheduled Tasks Utilizing PeriodicTask Feb 03, 2025 Django-Celery-Beat: How to Create Scheduled Tasks Feb 03, 2025 When Does Django's request Object Get Destroyed? Feb 03, 2025 Does Django's request.session.get() Trigger a DB Query? Feb 03, 2025 What is 'Lazy Evaluation' in Django? Feb 01, 2025 Comparison of Django QuerySet’s `.only()` vs `.values()` – Differences and Usage Feb 01, 2025 What is the `.values()` Method in Django QuerySet? Feb 01, 2025 Solving the N+1 Problem in Django ORM – A Comprehensive Guide to select_related and prefetch_related Feb 01, 2025 What is the N+1 Problem in Django ORM? Why Does it Occur? Feb 01, 2025 Redis Network Security Settings: Creating a Secure Redis Environment Jan 29, 2025 Setting Up Redis Modules: Extending Functionality and Usage Jan 29, 2025 Why Should You Use Include in Redis Configuration Files? Jan 27, 2025 Simplifying Dynamic Web Development with Django and HTMX (Part 7): JSON Response Method Jan 27, 2025 Simplifying Dynamic Web Development with Django and HTMX (Part 6): HTML Return Method Jan 27, 2025 Simplifying Dynamic Web Development with Django and HTMX (Part 5) Jan 27, 2025 Simplifying Dynamic Web Development with Django and HTMX (Part 4) Jan 27, 2025 Simplifying Dynamic Web Development with Django and HTMX (Part 3) Jan 27, 2025 Simplifying Dynamic Web Development with Django and HTMX (Part 2) Jan 27, 2025 Simplifying Dynamic Web Development with Django and HTMX (Part 1) Jan 27, 2025 The Django Request Object: Its Identity and Working Principle Jan 27, 2025 Django Decorators Inspired by Mathematics: The Beauty of Function Composition and Function Spaces Jan 24, 2025 The Mechanics and Creation of Custom Decorators in Django Jan 24, 2025 The Principle of localhost as 127.0.0.1 and How to Utilize `/etc/hosts` Jan 23, 2025 Hanae's Return Documentary: A New Beginning for Mameshiba no Taigun Jan 18, 2025 Django Forms Part 6: Advanced Usage of Forms Jan 18, 2025 Django Forms Part 5: Styling with CSS Jan 18, 2025 Django Forms Part 4: Validation and Customization Jan 18, 2025 Django Forms Part 3: Fields and Widgets Jan 18, 2025 Differences Between Django Forms and ModelForms Jan 18, 2025 What are Django Forms? Basic Concepts and Principles Jan 18, 2025 ‘ろけっとすたーと (Rocket Start)’ by Mameshiba no Taigun (豆柴の大群) Jan 17, 2025 Hanae Monster's Return to Mameshiba no Taigun Jan 16, 2025 What is Duplication in Django ORM? The Need and Usage of the distinct() Method Jan 14, 2025 "Mameshiba no Taigun (豆柴の大群)", Supporting Their New Beginning Jan 14, 2025 Differences and Uses of get_language() and request.LANGUAGE_CODE in Django Jan 14, 2025 Using the Q Class in Django: A Simple Way to Handle Complex Conditions Jan 10, 2025 Setting Up Cache in Django Development: Performance Optimization with Redis Jan 10, 2025 In-Depth Analysis of render_to_string for Sending HTML Emails in Django Jan 09, 2025 Django's QueryDict: An Object Like a Dictionary, But More Than Just a Dictionary Jan 07, 2025 JavaScript, Python Dictionary, and C++'s std::map Jan 07, 2025 Small Mistakes, Deep Learning Jan 03, 2025 Understanding the Relationship Between One-off and Enabled in Celery Beat: Correct Usage and Insights Jan 02, 2025

Comparison of Django Session Deletion Methods: flush(), pop(), del Dec 15, 2024 Celery @shared_task Options: A Complete Guide to bind, autoretry_for, retry_backoff, max_retries Dec 15, 2024 How to Extract Keys and Values from a Python Dictionary as Lists Dec 15, 2024 A Complete Guide to Python @staticmethod Dec 15, 2024 Various Ways to Handle Python Dictionaries Dec 15, 2024 Understanding the Differences Between JSON Format and Python Dictionary Dec 15, 2024 Setting Up an OAuth2 Authentication Server Using Django OAuth Toolkit (DOT) Dec 05, 2024 OAuth 2.0: An Easy-to-Understand Authentication Protocol for Everyone Dec 04, 2024 QuerySet and Data Retrieval in Django ORM Nov 16, 2024 What is the objects manager in Django ORM? - In-depth Analysis Nov 15, 2024 What is Django ORM? An Introduction to ORM Concepts for Beginners Nov 15, 2024 Flexible Coding: Checking for Object Attribute Existence with Python `hasattr` Nov 14, 2024 Periodic Task Options Available in Django-celery-beat Admin Nov 14, 2024 Setting Expiration for Celery Task Results and Periodic Cleanup: What Settings Are Suitable? Nov 14, 2024 In-Depth Memory Management with Django-celery-beat and Various Result Backends Nov 14, 2024 Django-celery-beat and Backend Memory Management (Part 1) Nov 13, 2024 Redis Part 3: Memory Management and Performance Optimization in Redis Nov 09, 2024 Redis Part 2: Data Persistence Options in Redis - RDB vs AOF Nov 09, 2024 Redis Part 1: Understanding Basic Concepts and Configuration Files Nov 09, 2024 Boxing Meets Fashion: Introduction to 312Toglory Nov 07, 2024 3 Practical Tips to Keep Your Django Server Running Without SSH Session Dropping Nov 07, 2024 Thoughts on Coexisting with the Stray Cats in Our Neighborhood Nov 06, 2024 Comparison of JsonResponse in Django and Response in Django REST Framework Nov 04, 2024 Concerns About Deep Learning and TensorFlow Nov 04, 2024 First Steps in Deep Learning with Python TensorFlow - Development Notes Nov 03, 2024 Concepts of AI, Machine Learning, and Deep Learning and Introduction to Deep Learning Frameworks Nov 03, 2024 Winter Onsen Trip in Oita Nov 03, 2024 The Concept and Differences Between Linux Daemons and Systemd Units Nov 03, 2024 Understanding Linux `crontab` Properly: Tips for Developers on Automated Scheduling Nov 03, 2024 Introduction to Python Basics: Safe Coding with Error Handling (Try-Except) Nov 02, 2024 Introduction to Python Basics: The Power of Handling String Variables Nov 02, 2024 Main Commands of PostgreSQL Nov 02, 2024 Deep Dive into Django Model Structure: An Approach for Better Database Design Nov 02, 2024 A Complete Understanding of Django Signals: Practical Use Cases of pre_save and post_save Nov 01, 2024 Django related_name Option: Why is it Needed? Nov 01, 2024 Django Model Field Options: Difference and Usage of blank=True vs null=True Nov 01, 2024 Django Model Structure: models.Model, AbstractUser, CustomUser, and Manager Classes Oct 29, 2024 Using __(Double Underscore) in Django ORM: Leveraging Relational Fields and Queries Oct 28, 2024