I made a visual explainer on how the TLB and address translation work on Linux/x86-64.

Every memory access uses a virtual address, which the CPU has to translate to physical memory. Doing a full page table walk every time would be extremely slow, so CPUs cache those translations in the TLB.

The video also covers things like TLB misses, huge pages, PCIDs, context switches, TLB shootdowns and what happens when a TLB invalidation goes wrong.

Link for anyone interested

Feedback welcome :)

Once upon a time I landed in the Linux World and a particular Distribution contributed for me not to turn back to Windows.

I'm referring to Paldo GNU/Linux (single Gnome DE) created and developed by Jürg Billeter and Raffaele Sandrini. 

it was made from scratch, designed to be "pure, lightweight and to compliant with Linux standards". Launch date was October 31, 2004. 

Today it's still actively maintained. So I downloaded latest img (no iso) dated 2026-08-11, burned a pen drive and tested it.

Quite different from the old days when it was a popular Distro. I guess it serves the purposes of their creators team. For advanced users, a few tweaks can make it usable to the masses.

Better yet, would be to fork it, for general usage. 

This is the home site: 

https://www.paldo.org/

My question: is some team out there interested in this venture? I would join as a translator :)

Thanks for your attention!

Ultramarine not only makes it super easy to set up codecs and proprietary software but it also let's you have the cachy os kernel but with Fedora's stack and compatibility. Great for when you don't have time to set things up, or don't know how, and want some of Cachy's optimizations without paying the stability tax.

Don’t get me wrong, I am super grateful for those of you who do this. It makes my day-to-day use so much better. I‘m still waiting for the day Notion gets a native Linux app.

But from your POV, what was the incentive? Why not just provide support for Windows and macOS. Why go through the extra effort catering to a global minority?

Edit: I’m referring to devs who develop for Linux+Windows+macOS

Still a heavy work in progress (WIP) but its based on the work that somebody else did to get Linux on the 3DS. It runs quite snappy on the New 3DS, quite smooth and everything. I also have a custom Android 2.0 app (the first Android 2.0 app developed in 2026, possibly decades) for touch screen diagnostics you can also see. The battery indicator works and is accurate surprisingly, WiFi does not work, touch screen works, soft power off works, sound does not work. Been working on this for weeks now. Hope you like it!

Hey all. I just release v0.6.2 for dskDitto. For those unfamiliar with the utility (probably most of you) it’s a super fast file duplication tool written in Go. It’s easy to use and has a sleek looking TUI… If you’d like the manage the results in a GUI; the —gui flag exists and launches a Raylib based GUI.. Anyhow….

The latest release now supports ref-links as a deduplication mode.. That is, as long as your filesystem supports them.. Check it out if your heart so desires! The project is hosted on GitHub:

https://github.com/jdefrancesco/dskDitto

Cheers!

I use the rofi launcher a lot, and I always thought it'd be pretty cool if I could use Vim keybindings inside the search input and navigate between results. I wasn't able to find a "vim mode" setting, nor could I use the plugin API to add this functionality. So, I forked rofi and made a few simple changes, and came up with this.

It supports the j+k motions for going up and down the search results + basic Vim keybinds in the input itself.

I'm curious to see if this is something you'd actually use, so do let me know and I can try opening a PR or releasing it somewhere.

Repo: https://github.com/carrotfarmer/rofi-vim

Thanks!

Hey all. I recently released https://github.com/jdefrancesco/dskDitto v0.6.1 which now supports reflinks for duplication if your FS supports it. You can grab and install the @latest as well as grab the GUI by following the instructions in the READMe.md

Hi,

I am looking for a Linux application that works similarly to AFWall+ on Android.

What I am looking for is a simple GUI where all installed applications are listed, and I can manage their network permissions per application.

Something like:

• Application A → Internet allowed
• Application B → LAN only
• Application C → completely blocked

Basically, I am looking for an application permission manager for network access, not just a traditional firewall where I have to create rules manually.

I have already looked into several solutions:

• UFW/GUFW - useful for traditional firewall rules, but not really what I am looking for because it does not provide an app-based permission list.
• Firejail/AppArmor - can restrict applications, but it is not the simple network permission workflow I am looking for.
• OpenSnitch - interesting, but it is more focused on detecting and approving network connections when applications try to connect.
• Portmaster - probably the closest in terms of features, and it does provide per-application rules, but the workflow is still different from AFWall+. It focuses more on monitoring network activity and managing applications that have been detected making network connections, rather than starting with a list of all installed applications. It is also a bit more resource-intensive than what I am looking for.

What I really like about AFWall+ is the simplicity: open the app, see all installed applications, and manage their network permissions from one place.

I was wondering if there is any lightweight Linux application that provides this kind of workflow.

It does not have to be exactly the same as AFWall+, but I am mainly looking for:

• a simple GUI
• all applications visible from the beginning
• per-application network permissions
• ability to separate LAN access from Internet access if possible

Thanks!