papanda925

PowerShell

Why Does the Windows Screen Freeze? — Peeking into the Win32 Message Loop from PowerShell

Observe Click events using a minimal PowerShell + WinForms GUI, and experience firsthand why the Win32 message loop and UI thread freeze.
2026.09.11
PowerShell
Programming / Web Development

Fixed-length data is hard to understand as text: Use PowerShell to run a hex dump and inspect boundaries

Convert fixed-length dummy records into byte sequences and apply item boundaries, character encodings, and byte-length limits to business file acceptance checks.
2026.09.11
Programming / Web Development
Security

What to Remove Before Pasting Production Logs into AI: Testing Safe Sharing Procedures with Dummy Logs

Mask tokens and emails using dummy logs, and establish operational procedures for what to retain and what to obscure before sharing with AI or vendors.
2026.09.11
Security
AI & Machine Learning

Preventing AI Character Drift: Creating and Testing a Character Sheet from a Single Image

You try to generate the same character with generative AI, but the face changes slightly every time. I tried a practical method of creating a Character Sheet from a single image, designating papanda925 as the official reference, and changing only the expressions, poses, and scenes.
2026.09.11
AI & Machine Learning
Networking / RFC

Do Not Follow Redirects Blindly: Inspecting Location Chains with curl

Perform initial triage of SSO flows, shortened URLs, and legacy internal link forwarding paths by observing 3xx status codes and Location headers with curl.
2026.09.11
Networking / RFC
Networking / RFC

Delimiting "one message" in TCP: Trying length prefixes on localhost

We test a length prefix, which adds a 4-byte length to the TCP byte stream so the receiving side can determine message boundaries.
2026.09.11
Networking / RFC
Linux / CLI / DevOps

What is the difference between symbolic links and hard links? — Understanding through inodes

Create two types of links in a temporary directory and understand their differences based on inodes and behavior after deleting the original file.
2026.09.11
Linux / CLI / DevOps
PowerShell

How Many Threads Are in a Process? — Observing Reality with PowerShell

Read the current PowerShell process and observe how multiple threads exist within a single PID.
2026.09.11
PowerShell
PowerShell

Base64 Is Not Encryption: Visually Confirming Reversibility with PowerShell

Encode and decode Base64 in PowerShell to visually understand the difference between encoding and encryption.
2026.09.11
PowerShell
Programming / Web Development

Understanding through Manga! Trying Out a Page-Switching Manga Viewer with Image Data: Landscape 4-Page Version and Smartphone Vertical-Scrolling Version

Using 4 Papanda manga images and JSON, we compare mechanisms by creating a landscape viewer that switches back and forth using JavaScript and a vertical-reading version for smartphones that stacks the same images vertically.
2026.09.10
Programming / Web Development
Next page