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Scheduling Analysis of UAV Flight Control Workloads on PREEMPT_RT Linux Using a Raspberry Pi 5
arXiv:2604.19275v2 Announce Type: replace Abstract: Modern UAV architectures increasingly aim to unify high-level autonomy and low-level flight control on a single General-Purpose Operating System (GPOS). However, complex multi-core System-on-Chips (SoCs) introduce significant timing indeterminism due to shared resource contention. This paper performs an architectural analysis of the PREEMPT RT Linux kernel on a Raspberry Pi 5, specifically isolating the impact of kernel activation paths...
Use your Nvidia GPU's VRAM as swap space on Linux
Use your NVIDIA GPU's VRAM as swap space on Linux. Built for laptops with soldered memory and no upgrade path. If you have an RTX card sitting there with 8GB of VRAM and you're getting swapped to SSD, this puts that VRAM to work.
Restartable Sequences
May 31st, 2026 @ justine's web page The best kept secret at the frontier of system programming right now is the Linux 4.18+ (c. 2018) concept of restartable sequences or rseq for short. They allow you to create thread-safe data structures without locks or atomics which scale to microprocessors with many cores. It's currently only possible to use rseq on Linux using handwritten assembly code.
Show HN: Nucleus – A security-hardened, Nix-native container runtime
Extremely lightweight, security-hardened, declarative container runtime for agents and production services Nucleus is a minimalist container runtime for Linux. It provides isolated execution environments using Linux kernel primitives without the overhead of traditional container runtimes. For production services, it is designed around a fully declarative model: Nix builds the root filesystem, the NixOS module declares the service, and Nucleus mounts a pinned, reproducible closure at runtime.
Coreutils for Windows
UNIX-style core utilities for Windows. The same commands and pipelines you use on Linux, macOS, and WSL - natively. A Microsoft-maintained build of uutils/coreutils, findutils, and a GNU-compatible grep packaged as a single multi-call binary for Windows.
Microsoft’s new developer-optimized Windows embraces Linux even more
Microsoft is kicking off its Build developer conference today with a promise of making Windows a trusted platform for development. As the company continues to focus on performance and reliability fixes for Windows 11, it's also creating a developer-optimized experience that bundles a lot of useful tools and apps and embraces Linux even further. "We have optimized the Windows 11 experience for developers, bringing frequently used command line utilities, a familiar comfort shell, faster setup...
Norks blast 250+ fake job offers to developers over 6 weeks to try and snarf creds and crypto
There's another likely North Korean-linked scam hitting developers and their employers, while snarfing up credentials and cryptocurrency - and this one doesn't even involve embedding IT workers at high-profile tech giants. A previously unseen phishing crew, suspected to have DPRK ties, sent more than 250 emails to people working in almost 100 organizations, mostly based in the US, over six weeks in April and May. According to security sleuths, it is yet another digital-heist attempt designed...
Gooey: A GPU-accelerated UI framework for Zig
A GPU-accelerated UI framework for Zig, targeting macOS (Metal), Linux (Vulkan/Wayland), and Browser (WASM/WebGPU). Join the Gooey discord Early Development: API is evolving. Example app built with Gooey — chat-zig, an Anthropic Claude client using the Zig 0.16 std.
Rift: Better Alternative to Git Worktrees
rift: better alternative to git worktrees - copy on write (saves space) - instant (< 0.1s on 10gb folder) - fast cli - use as FFI lib with bun or node mac and linux+btrfs for now more support soon npm install -g rift-snapshot # or bun add -g rift-snapshot Release archives are available from GitHub Releases. | Platform | Backend | Behavior | |---|---|---| | Linux x64 | Writable btrfs snapshots | rift init converts an ordinary directory into a btrfs subvolume.
High-severity vulnerability in Linux caused by a single errant character
Researchers have analyzed a high-severity vulnerability in Linux that’s able to escalate untrusted users to root by exploiting a bug you don't often see: a single errant character inside the kernel. The vulnerability, tracked as CVE-2026-23111, is located in nf_tables, a subsystem of the Linux kernel that provides packet filtering capabilities. It’s used to manage firewall rules and replaces older subsystems such as iptables, ip6tables, arptables, and ebtables. !!!