1891
WiFi can read through walls
UCSB researchers’ new method enables high-quality imaging of still objects with WiFi by using the Geometrical Theory of Diffraction and the corresponding Keller cones to trace edges of the objects.
New
The latest blog posts to take off on Hacker News. 6,299 posts.
1892
You Don't Need UUID
I've experienced first-hand how using UUID hurts the usability of computer systems, and I want you to understand why you certainly don't need it.
1893
Develop with Cocoa for Apple devices without using Objective-C
Summary In this post I’ll go into detail about how, during my contracting work for Shimmer Industries (a company founded by Eskil Steenberg which is focused on developing a real-time lighting designing software), I worked on a piece of software which enabled us to use the MacOS and iOS APIs using a custom C API…
1894
Nvidia’s AI supremacy is only temporary
Nvidia is an amazing company that has executed a contrarian vision for decades, and has rightly become one of the most valuable corporations on the planet thanks to its central role in the AI revol…
1895
Unix Domain Sockets vs Loopback TCP Sockets (2014)
Two communicating processes on a single machine have a few options. They can use regular TCP sockets, UDP sockets, unix domain sockets, or shared memory. A recent project I was working on used Node…
1896
Intuitively Understanding Harris Corner Detector
If you ever tried to learn how the Harris corner detection algorithm works, you might have noticed that the process is not intuitive at all. First, you start with an energy function, approximate it using Taylor approximation, get a matrix from that, then find the eigenvalues of that matrix, etc. But when you come to…
1897
Beyond OpenAPI
Let's write the docs like it's 2023.
1898
A LLM+OLAP Solution
The exploration of a LLM+OLAP solution is a bumpy journey, but phew, it now works well for the Tencent case, and they're writing down every lesson learned to share with you.
1899
A systematic approach to debugging
I've got a reputation at work as being a skilled debugger. It's a frequent occurrence that the weird stuff lands on my desk [1] after it goes through another skilled engineer or two. To say my job is substantially "debug the weird shit" would not be an understatement and I'm here for it.
1900
Removing garbage collection from the Rust language (2013)
I've been floating ways to simplify the memory management story in Rust around the core team lately. Memory management is a contentious topic, since we've worked hard to get to the current state of things, and with the push toward stability lately, there is a (quite reasonable!) resistance to any changes at this…
1901
HDMI ISA graphics card for vintage PCs by improving the Graphics Gremlin
HDMI is a relatively modern video connector we take for granted on modern PCs and monitors. Now vintage PCs can join in the fun too with a native connection to modern HDMI monitors without any additional adapter. (A production run has been made for this board. You can contact explit[at]mailbox[dot]org if you wish to…
1902
UK air traffic control meltdown
Some notes about the UK air traffic control meltdown
1903
Microsoft has not stopped forcing Edge on Windows 11 users
Microsoft announces vague changes to the default web browser setting for Windows Insider. Nothing but wishful thinking. Still force-opens web links in Edge.
1904
1905
The Awk book’s 60-line version of Make
A discussion of the minimal version of Make included in 'The AWK Programming Language', as well as a Python port of the AWK program.
1906
RISC-V SBI and the full boot process
Detailed explanation on how RISC-V boot process works and what role SBI has in the RISC-V software stack. Concrete example with OpenSBI.
1907
Static Hermes: Compile JavaScript to speed it up 300x (in microbenchmarks)
How to speed up a ubenchmark 300x Static Hermes: How to Speed Up a Micro-benchmark by 300x Without Cheating This is th...
1908
Knightmare: A DevOps Cautionary Tale (2014)
In the first 45-minutes the market was open the faulty software deployment sent millions of child orders into the market resulting in 4 million transactions against 154 stocks for more than 397 mil…
1909
Mistakes You Should Never Make (2014)
I was walking to a team meeting where I was going to announce that we would likely have to lay off nearly all of our employees because we unexpectedly had almost no money left, and that it was all my fault.
1910
Why SaaS prices are still going up when companies are spending less
Discover why software prices surge despite reduced spending. Explore the 2023 landscape of hikes, inflation, and AI investments.
1911
1912
What I have changed my mind about in software development
I really like this quote from Jeff Bezos: “Anybody who doesn’t change their mind a lot is dramatically underestimating the complexity of the world we live in.” Lately I have been thinking about wha…
1913
New Bézier curves for vector graphics
Mathematical insights create a more intuitive UI for Bézier curves.
1914
Training and aligning LLMs with RLHF and RLHF alternatives
I frequently reference a process called Reinforcement Learning with Human Feedback (RLHF) when discussing LLMs, whether in the research news or tutorials.
1915
How does Linux NAT a ping?
A few months ago, I found myself wondering how a command like ping 1.1.1.1 works from within a private network. In most private networks, multiple hosts connect to the Internet through a router. For IPv4, the router performs network address translation (NAT) by rewriting the original host’s source address to the…
1916
1917
“Make” as a static site generator (2022)
Static site generators are in fashion for good reasons. The resulting pages are easy to host, fast and extremely low on maintenance while being sufficient for many use cases. As I learned when setting up my blog , writing a simple script myself is faster and more satisfying than learning one of the other site builders…
1918
I wired up my bike's GPS to order me pizza during a gravel race
As harvest season begins here in the Midwest, I once again celebrate by grinding Nebraska gravel at the Gravel Worlds Long Voyage bike race. As in previous years ( 2021 ) ( 2022 ), I spent more time writing code for a marginally-useful project than I did training. But hey, I finished!
1919
Amiga C Tutorial (2022)
Amiga C Tutorial
1920
