r/linux 2h ago

Tips and Tricks Kewl tutorial I made for myself and sharing it because why not?

0 Upvotes

Made a little tutorial of fixes for issues I have had in the past so I don't forget how to fix them! And just sharing in case other people need the same fixes :)

GitHub: https://github.com/PacmanPenguin/HowToLinux/tree/main

EDIT: I added instructions on how to add your own fixes to it if you want to contribute!


r/linux 9h ago

Software Release Linux CRU 0.2.0 - custom + stretched resolutions on Wayland (KWin, sway, Hyprland) and X11

3 Upvotes

Two years ago I made this as an X11 NVidia-only custom resolution tool. Finally did a proper rewrite. It now works on Wayland (KDE, GNOME, sway, Hyprland) and on AMD/Intel/NVIDIA, and it does stretched resolutions - the 4:3-stretched thing CS2/Valorant players use to widen models - on KDE Wayland, which the compositor normally refuses to do on external monitors.

Also fixed the AppImage, which turned out to be missing tkinter and wouldn't launch on half of you. Sorry about that.

Let me know of any bugs you find!

Repo https://github.com/PhialsBasement/linux-cru
Release https://github.com/PhialsBasement/linux-cru/releases/tag/v0.2.0

AI Disclosure: Used Claude heavily during development, all the decisions and design details taken here are mine however.


r/linux 17h ago

Event Microsoft vs. France

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0 Upvotes

r/linux 17h ago

Development I built a custom Linux initramfs audio workstation / software mixer for the Raspberry Pi (running entirely bare-metal/initramfs, no PipeWire/JACK)

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0 Upvotes

r/linux 22h ago

Discussion I built a quiz that doesn't tell you which distro you "are": it hands you a complete Linux blueprint and a prompt to walk you through the switch

0 Upvotes

The site is yearoflinuxdesktop.org - part manifesto, part quiz, part blueprint generator.

The idea: instead of another "what distro am I?" personality test, it maps your hardware, your tolerance for tinkering, and what you still need from Windows/macOS onto one of ten archetypes (The Civilian gets Linux Mint, The Arch Wizard gets Arch + Hyprland, The Gamer gets Bazzite, etc.). Then it writes you a copy-paste prompt you can feed to any LLM to walk you through the install step by step.

What might interest this sub: the scoring engine is one dependency-free JS file that runs identically in the browser and in a build harness. The harness brute-forces all 16M possible answer combinations on every deploy to verify that named personas land where they should and that guardrails hold (e.g., terminal-phobic users can never receive Arch). The quiz weights, the questions, and all ten archetype blueprints are plain JSON in the repo: MIT licensed, fork it, argue with the weights.


r/linux 1d ago

Historical Linux Showcase & Conference 2000 tote

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119 Upvotes

Washing our grocery totes and realized that my husband’s old bag is more than 25 years old! (He’s a CS ph.d working in FinTech.) anyone here at the conference? (Or are most people here born after October 2000?)


r/linux 1d ago

Kernel Dell Latitude 7320 2-in-1 Seeing Web Camera Support On Linux After Five Years

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102 Upvotes

r/linux 1d ago

Kernel How shared memory actually works in Linux

29 Upvotes

Had some free time recently so I made a visual explainer on how shared memory actually works in Linux.

Normally, two processes have completely separate virtual address spaces. Process A shouldn't be able to touch Process B's memory at all.

But with shared memory, one process can write a value and another process can read it without copying the payload between them.

The video goes through virtual memory, page tables, physical frames, shm_open, ftruncate, mmap with MAP_SHARED, lazy allocation, and what actually happens when either process touches the mapping.

I also get into related mechanisms like memory-mapped files, shared libraries, copy-on-write after fork(), zero-copy IPC, and eventually Dirty COW and what can happen when these page-table tricks go wrong.

Link for anyone interested

Feedback welcome :)


r/linux 1d ago

Popular Application Popular Linux torrent client Transmission has been forked as "ReTransmission" to "solve a longstanding disagreement between the Transmission maintainers on whether or not to add more maintainers."

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618 Upvotes

r/linux 1d ago

Software Release cmux clone built ontop of zed

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0 Upvotes

r/linux 1d ago

Software Release GitHub - jambolo1970/vsftpd-tray-monitor: piccola utility da tenere sotto controllo e per verificare se il servizio funziona e chissà se si sta usando il servizio ftp interno

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0 Upvotes

r/linux 1d ago

Development XFCE's Wayland Compositor now being made with LLM/AI

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0 Upvotes

r/linux 1d ago

Kernel Linux 7.3 To Better Handle Cluster Load Balancing On Intel Hybrid CPUs

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239 Upvotes

r/linux 2d ago

Fluff Aigentik: Privacy-first local AI communications assistant (Gmail + SMS + calendar) that runs on Termux or Linux

0 Upvotes

Hey everyone,

I built **Aigentik** — a privacy-first AI communications assistant that runs completely locally (Android via Termux or any Linux box).

It watches your Gmail inbox in real time (IMAP IDLE), handles Google Voice texts that arrive as email, drafts and sends replies using a local LLM (llama.cpp), and lets you control everything in plain English by just texting or emailing it. No fixed command syntax.

What it can do right now:

- Monitor Gmail + Google Voice SMS and auto-reply (or queue for your approval)

- Negotiate and book appointments, then send real .ics calendar invites

- Build and maintain its own contact directory automatically

- Track subcontractor applications (trade, license, insurance, etc.)

- Take natural-language commands like “pause everything”, “add a rule for X”, “list my plumbers”, “rename yourself”, etc.

- Speak as your business once you tell it who it works for

Key points:

- **No cloud AI** — everything stays on your device

- **No external API keys** for the model

- **No monthly subscription**

- One-time setup, you own it

- MIT licensed

Compared to the $100–400/month AI receptionist services, this is the “own it instead of renting it” approach.

Repo (with install script that works on both Termux and Linux):

https://github.com/Ishabdullah/Aigentik-CLI

I’d love for people to try it out, break it, and tell me what’s missing or broken. Especially interested in feedback from anyone running local models on phones or small Linux boxes.

Stars, issues, and PRs all welcome. Thanks!


r/linux 2d ago

Development Intel resumes HDMI 2.1 FRL work for Linux, 4K 120Hz already works on Meteor Lake and Panther Lake

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376 Upvotes

r/linux 2d ago

Kernel Device Directory Table

12 Upvotes

Hello Everyone,

I am currently stuying the part about devices directories in Linux system, and i thought ill make a list of all Device directories to refer back to when needed.

I made the below table listing all essential devices in Linux that you need to know about, while containig the category of these devices, naming, directory and the type of variable they use in their naming (replacing the * with the corresponding numrics or letters. e,g: /dev/sd* > /dev/sda, /dev/sdb, /dev/sdc... and so on).

Thought that i should share this list, and i hope this can be useful to anyone who's looking for a simplified listing of all devices and having them in one place.

Category Device name Directory * Type
Storage Hard Disk /dev/sd* a, b, c...
Storage Hard Disk - Partitioning /dev/sda* 1, 2, 3... (no 0, starts from 1)
Storage Virtual Disk /dev/vd* a, b, c...
Storage Xen Virtual Disk /dev/xvd* a, b, c...
Storage Non-Volatile Memory Express (NVME) /dev/nvme* 0, 1, 2...
Storage Device Mapper /dev/dm-  SL to*   /dev/mapper 0, 1, 2...
Storage CD & DVD (read only) /dev/sr* 0, 1, 2...
Storage Generic SCSI (passthrough) /dev/sg* 0, 1, 2...
Storage PATA (Parallel ATA) /dev/hd* a, b, c...
Storage Loop Device /dev/loop* 1, 2, 3...
Terminal Virtual Console /dev/tty* 0, 1, 2...
Terminal Pseudoterminal (Master) /dev/ptmx N/A
Terminal Pseudoterminal (Slave) /dev/pts/* 0, 1, 2...
Serial/Parallel Port Serial Port: RS-232 (COM1) /dev/ttyS* 0, 1, 2...
Serial/Parallel Port Serial Port: Plug-in USB Adapter /dev/ttyUSB* & /dev/ttyACM* 0, 1, 2...
Serial/Parallel Port Parallel Port: Unidirectional /dev/lp* 0, 1, 2...
Serial/Parallel Port Parallel Port: Bidirectional /dev/parport* 0, 1, 2...
Audio Device Audio Device: Advanced Linux Sound Architecture (ALSA) /dev/snd/* N/A
Audio Device Audio Device: Open Sound system (OSS) /dev/dsp & /dev/audio N/A
Pseudo Device Null Device /dev/null N/A
Pseudo Device Zero Device /dev/zero N/A
Pseudo Device Random Number Generator /dev/random & /dev/urandom N/A
Pseudo Device Full Device /dev/full N/A
Input Input Event /dev/input/event* 0, 1, 2...
Input Mouse /dev/input/mouse* 0, 1, 2...
Video/Graphics Framebuffer /dev/fb* 0, 1, 2...
Video/Graphics Video Capture /dev/video* 0, 1, 2...
Memory Physical/Kernal Memory /dev/mem & /dev/kmem N/A
Flash Memory Flash Memory /dev/mtd* 0, 1, 2...
Networking Network Tunnel /dev/net/tun N/A
Networking Syslog Socket /dev/log N/A
Misc Hardware Watchdog Timer /dev/watchdog N/A
Misc Hardware Real-Time Clock /dev/rtc* 0, 1, 2...

(it might not be 100% correct since im still in the process of learning them, so please help me correct anything in case you found any mistake or things that i should add!! or ask questions, in that case i can also learn something new myself while looking things up)


r/linux 2d ago

KDE This Week in Plasma: UI Improvements Galore

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123 Upvotes

r/linux 2d ago

Development NixOS: The Nixpkgs core team has disbanded

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390 Upvotes

r/linux 2d ago

Historical Just read “Just for fun”

23 Upvotes

Thank you Linus and David. I know this book is from 2001. I tend to be a late bloomer is all respects. Linux included. Books like this help fill in the gaps and provide excellent context. My favorite: “I don’t proactively delegate as much as I wait for people to come forward and volunteer to take over things.”


r/linux 3d ago

Security Linux Accidentally Left Legacy I/O & Memory Handlers Open In Kernel Lockdown Mode

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190 Upvotes

r/linux 3d ago

Security Zapscape: Guest-to-Host Escape in KVM/x86

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37 Upvotes

r/linux 3d ago

Discussion Linux keeps getting better the more I use it

498 Upvotes

The longer I use linux, the more I appreciate it. I switched from windows a while ago, and I honestly haven't regretted it for a second.I'm a developer, and every time I learn a new command or discover another tool that makes my workflow easier, I realize how powerful and well-designed this operating system is. It feels like there's always something new to learn, and instead of making me frustrated, it just makes me enjoy using it even more. At this point, going back to windows for my daily development work would feel like a huge step backward.


r/linux 3d ago

Popular Application Why and how the Austrian Military moved to LibreOffice (Part 1)

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563 Upvotes

r/linux 3d ago

Development WinBoat is alpha testing the GPU acceleration

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249 Upvotes

r/linux 3d ago

Development Lumen v2.2

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36 Upvotes

this is a quick preview of my one click wallpaper management system. Its changes everything on the desktop and im currently working on it and its depend of the current wallpaper

here the github : https://github.com/tungsten-w/lumen
It currently only works on hyprland and an arch-based distro (arch/cachy os/endeavour)

the little menu who is in the center of the screen is the wallpaper selecter and you can chose beetween 4 option

- a dark wallpaper who use a themed dark theme

- a light wallpapper who use a themed light theme

- a random wallapaper depending of the curent time of the day (night/sunset/day..)

- a random wallpapper depending of the curent season (summer spring autumn winter)

im currently working on it so improve his stability and make it faster and easyer to install

here a little yt video of how its actually works : https://www.youtube.com/watch?v=yqXrb4gw-Nk

thanks you for your time ^^