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Security

letmein – authenticated port/firewall knocking

December 28, 2025 Steve Emms Security

Letmein is a port knocker with a simple and secure authentication mechanism. It can be used to harden against pre-authentication attacks.

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xpdig – tools to explore crossplane resources

December 28, 2025 Steve Emms Internet, TUI

xpdig provides a terminal based UI (similar to k9s) to interactively explore Crossplane traces

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Archive Manager

dtrx – intelligent archive extraction tool

December 28, 2025 Steve Emms CLI, Utilities

dtrx cleanly extract many archive types.

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Fernflower – decompiler from Java bytecode to Java

December 28, 2025 Steve Emms CLI, Programming

Fernflower is a decompiler from Java bytecode to Java.

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Files

treemd – modern Markdown viewer

December 27, 2025 Steve Emms CLI, Documents, TUI

treemd is a modern markdown viewer combining tree-based navigation with interactive TUI. It’s like tree but interactive.

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Comic Books

Seanime – media server

December 27, 2025 Steve Emms Other, Web Apps

Seanime is a media server with a web interface and desktop app for managing your local library, streaming anime and reading manga.

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Wallpaper Setter

Wallpaper Splitter – apply a single image

December 27, 2025 Steve Emms GUI, Utilities

Wallpaper Splitter allows you to apply a single image as your wallpaper spanning all of your screens on KDE.

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hcxdumptool – capture packets from wlan devices

December 27, 2025 Steve Emms CLI, Internet

hcxdumptool captures packets from WLAN devices and to discover potential weak points within own WiFi networks.

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Web

Optimize Web Delivery with these Open Source Tools

December 27, 2025 Steve Emms Internet, Roundup, System Software

Web proxy software forwards HTTP requests without modifying traffic in any way. They can be configured as a transparent proxy with no client-side configuration required.

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Hex Editor

Hextazy – colorful hexadecimal editor

December 27, 2025 Steve Emms Documents, TUI

Hextazy is a colorful hexadecimal editor, inspired by hexyl.

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Data Science

11 Best Free and Open Source Python Data Validation

December 27, 2025 Steve Emms Roundup, Scientific

Our recommended tools for performing data validation using Python.

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Text Editor

10 Best Free and Open Source Distraction-Free Tools for Writers

December 27, 2025 Steve Emms Documents, Productivity, Roundup

Here are the finest distraction-free applications to help you focus on writing without interruption.

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process

lnko – simple stow-like dotfile linker

December 27, 2025 Steve Emms Software

lnko is a simple stow-like dotfile linker written in the Lua programming language.

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dna-medical

6 Best Free and Open Source Linux Electronic Medical Records Software

December 27, 2025 Steve Emms Roundup, Scientific

This article focuses on software that provides Electronic Medical Records (EMR) functionality.

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Card Games

Qt Hearts – classic Hearts card game

December 27, 2025 Steve Emms Games

Qt Hearts is a classic card game. Try to avoid taking hearts and especially the Queen of Spades.

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SQL

Harlequin – Terminal-based SQL IDE

December 27, 2025 Steve Emms Database, TUI

Harlequin is an easy, fast, and beautiful database client for the terminal.

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flir – parse and rewrite R code

December 27, 2025 Eilidih Parris Programming

flir is an R package to detect and rewrite code patterns. It was originally created to be an R linter and an alternative to lintr.

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DWARF Explorer – GUI utility for navigating the DWARF debug information

December 27, 2025 Steve Emms GUI, Programming

DWARF Explorer is a cross-platform GUI utility for visualizing the DWARF debugging information in executable files

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Cloud

b4n – TUI for the Kubernetes API

December 27, 2025 Steve Emms Internet, TUI

b4n is a terminal user interface (TUI) for the Kubernetes API, created mainly for learning the Rust programming language.

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Monitor System

ibtop – real-time terminal monitor

December 27, 2025 Steve Emms CLI, Utilities

ibtop is a real-time terminal monitor for InfiniBand networks – htop for high-speed interconnects.

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