20 random bookmarks

2026-04-15

54.

Immutable Systems: NixOS + systemd-repart + systemd-sysupdate

x86.lol/generic/2024/08/28/systemd-sysupdate.html

When you build software for embedded devices (your Wi-Fi router or home automation setup on your Raspberry Pi), there is always the question how to build these images and how to update them.

2026-04-05

53.

Killing the ISP Appliance: An eBPF/XDP Approach to Distributed BNG

markgascoyne.co.uk/posts/ebpf-bng

An open-source, eBPF-accelerated BNG that runs directly on OLT hardware - eliminating expensive centralised appliances

2026-02-25

51.

Finding the Bottom Turtle · blog.dave.tf

blog.dave.tf/post/finding-bottom-turtle

Some reflections on trusting trust, and how deep the rabbit hole goes.

2026-01-09

50.

Decorative Cryptography

www.dlp.rip/decorative-cryptography

Last year, I came agross a Linux kernel feature called TCG_TPM2_HMAC. It claims to detect or prevent active and passive interposer attackers.
It all sounds really great. We should care about interposer adversaries. It’s great to use the TPM features that were invented to help us with these problems.

2025-12-17

49.

A security model for systemd

lwn.net/Articles/1042888

Poettering said that he does have a vision for how all of the security-related pieces of systemd are meant to fit together. He wanted to use his talk to explain ""how the individual security-related parts of systemd actually fit together and why they exist in the first place"".

2025-08-27

47.

Inside Windows 3

www.xtof.info/inside-windows3.html

Windows 3 is often said to be just an UI on top of DOS. This article presents some of the inner side of Windows 3.x and will show that it is more ambitious and advanced than that.

2025-07-07

46.

Rewriting Kafka in Rust Async: Insights and Lessons Learned in Rust | Rex Wang

wangjunfei.com/2025/06/18/Rewriting-Kafka-in-Rust-Async-Insights-and-Lessons-Learned#Summary

Achieving high-performance asynchronous Rust projects transcends mere usage of the async/await syntax; it fundamentally relies on a deep understanding of the underlying task scheduling, lock optimization, and architecture design principles.

2025-07-03

45.

Rewriting Kafka in Rust Async: Insights and Lessons Learned in Rust | Rex Wang

wangjunfei.com/2025/06/18/Rewriting-Kafka-in-Rust-Async-Insights-and-Lessons-Learned

Rex Wangs blog

2025-06-27

44.

How fast are Linux pipes anyway?

mazzo.li/posts/fast-pipes.html

Pipes are ubiquitous in Unix --- but how fast can they go on Linux? In this post we'll iteratively improve a simple pipe-writing benchmark from 3.5GiB/s to 65GiB/s, guided by Linux perf.

2025-03-19

40.

Comptime Zig ORM

matklad.github.io/2025/03/19/comptime-zig-orm.html

This post can be considered an advanced Zig tutorial. I will be covering some of the more unique
aspects of the language, but won't be explaining the easy part. If you haven't read the Zig
Language Reference, you might start there. Additionally,
we will also learn the foundational trick for implementing relational model.

2025-01-22

36.

Packer: How to Build NixOS 24 Snapshot on Hetzner Cloud - Developer Friendly Blog

developer-friendly.blog/blog/2025/01/20/packer-how-to-build-nixos-24-snapshot-on-hetzner-cloud

Step-by-step guide to building a NixOS 24 snapshot on Hetzner Cloud using Packer, with complete configuration files and OpenTofu deployment examples.

2024-11-20

31.

Why I love Rust for tokenising and parsing

xnacly.me/posts/2024/rust-pldev

Macros, iterators, patterns, error handling and match make Rust almost perfect

2024-09-12

23.

Computational Journalism | At the Tow Center for Digital Journalism

compjournalism.com

The course is a hands-on, research-level introduction to the areas of computer science that have a direct relevance to journalism, and the broader project of producing an informed and engaged public $100 installment loan. We study two big ideas: the application of computation to produce journalism (such as data science for investigative reporting), and journalism about areas that involve computation (such as the analysis of credit scoring algorithms.)

2024-09-10

22.

Notes on Distributed Systems for Young Bloods – Something Similar

www.somethingsimilar.com/2013/01/14/notes-on-distributed-systems-for-young-bloods

Below is a list of some lessons I’ve learned as a distributed systems engineer that are worth being told to a new engineer. Some are subtle, and some are surprising, but none are controversial. This list is for the new distributed systems engineer to guide their thinking about the field they are taking on. It’s not comprehensive, but it’s a good beginning.

2024-09-04

16.

the spatula

www.thespatula.io/rust/rust_io_uring_echo_server

In this article we build off what we’ve already learned about io_uring and extend that to build an async echo server.

2024-09-02

15.

Timeseries Indexing at Scale - Artem Krylysov

artem.krylysov.com/blog/2024/06/28/timeseries-indexing-at-scale

2024-08-29

14.

Overloaded fields, type safety, and you

educatedguesswork.org/posts/text-type-safety

The underlying problem we are facing here with all these examples is the same: having the same set of bits which can mean two different things and needing some way to distinguish those two meanings. Failure to do so leads to ambiguity at best and serious defects at worst. That's why you see so much emphasis in modern systems on type safety and on strict domain separation between different meanings.

2024-07-31

10.

Build your own SQS or Kafka with Postgres

blog.sequinstream.com/build-your-own-sqs-or-kafka-with-postgres

We're Sequin, an open source message stream built on Postgres. We think Sequin's cool, but you don't need to adopt the project to get started with streaming in Postgres. In fact, you can turn Postgres into a basic queue/stream pretty easily. Below, we share what we've learned so you

2024-07-07

6.

Optimizing Large-Scale OpenStreetMap Data with SQLite

jtarchie.com/posts/2024-07-02-optimizing-large-scale-openstreetmap-data-with-sqlite

2024-06-09

1.

So You Want To Build A Browser Engine

robert.ocallahan.org/2024/06/browser-engine.html