RÉV·15 ·
Spotify no longer starts after a hostname change (Linux)
Spotify won't open and exits with code 1 after a hostname change: an orphaned Singleton* lock, and how to remove it.
Read →Full journal
Every article — field notes, blue team, homelab and automation.
RÉV·14 ·
Minecraft 26.3 (Prism): transparent item icons
Transparent item icons in Minecraft 26.3 on Prism Launcher: the icon atlas lead, the GPU red herring and the real cause, SDL falling back to XWayland.
Read →RÉV·13 ·
Setting Up a Cloudflare Dynamic DNS on Debian with systemd
A homemade DDNS on Debian: a Bash script, the Cloudflare API and a systemd timer to keep an A record in sync with a dynamic public IP.
Read →
RÉV·12 ·
Claude Code + tmux: Stop Losing Your Terminal Sessions Every Time Your Mac Sleeps
Run Claude Code inside a persistent tmux session with a cc alias, so closing the terminal or the laptop no longer kills the agent or its context.
Read →
RÉV·11 ·
The Client Doesn’t Pay for Your Perfect Architecture
Perfect architecture or code that ships? A candid take on technical debt, the Pareto principle and what the client actually buys.
Read →
RÉV·10 ·
Why is os.scandir() significantly faster than os.walk() in Python?
A real-world benchmark of os.walk() versus os.scandir() in Python: roughly twice as fast, why, and when the difference really matters.
Read →
RÉV·09 ·
Why your enterprise hard drive won't start: the 3.3 V explanation and the Kapton fix
An enterprise hard drive won't spin up on a recent PC power supply? The SATA 3.3 PWDIS pin is to blame, and a piece of Kapton tape fixes it.
Read →
RÉV·08 ·
Bouygues Network Bug – WireGuard Disruption Between Public IPv6 and Fixed IPv4
Since a firmware update, Bouygues Wi-Fi 6 Bbox routers disrupt WireGuard tunnels: symptoms, likely cause (reduced MTU) and the MTU = 1380 fix.
Read →
RÉV·07 ·
Understanding throughput to size your network
Bits or bytes, disk or network: how to compare throughput, estimate how long a backup takes and size a network without a bottleneck.
Read →RÉV·06 ·
Understanding the difference between useradd and adduser on Linux
useradd is the low-level tool, adduser an interactive Perl wrapper specific to Debian: practical differences and which one to pick.
Read →RÉV·05 ·
VS Code Config: Enforcing a Coding Style with Rulers
A minimal VS Code settings.json: an 80-column ruler, visible whitespace and fixed indentation to enforce a shared coding style across the team.
Read →RÉV·04 ·
VSCode Snippet: Automatically Generate Your #ifndef Guards in C/C++
A VS Code snippet that generates the #ifndef / #define / #endif header guards of a C or C++ file from its name, in one Tab press.
Read →RÉV·03 ·
Disabling Bash's annoying beep
One line in /etc/inputrc is enough to silence Bash's terminal bell, or to replace it with a visual flash.
Read →RÉV·02 ·
Turn a folder into an instant file server
Share a folder with one command using Python's built-in HTTP server, no cloud or USB stick needed, plus the limits to keep in mind.
Read →RÉV·01 ·
Simulating keyboard typing from the clipboard
Get around fields that block paste on Linux by replaying the clipboard as keystrokes with xclip and xdotool.
Read →DRAWN BY A. PERROTRSS · © 2026 — RÉV. 11/2026