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My preferred .NET console stack
An opinionated view on the boilerplate starting point of any .NET console application
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 21,828 posts.
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WebAssembly: A New Hope
What is WebAssembly, and what does it mean for the web?
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Building a bare-metal bootable game for Raspberry Pi in C#
How I built a graphical bootable "game" for the Raspberry Pi (or any other modern computer) in C#.
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State of the Common Lisp Ecosystem
Personal website of Fernando Borretti.
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Spreadsheet is a software development paradigm
Some pros and cons of using Excel for software development compared to the traditional approach of using a programming language
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Write admin tools from day one (2022)
UPDATE: I gave a talk expanding on this blog post at EMPEX NYC 2023 . The Problem Writing useful features for your users is key to a succes...
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The Xerox Alto, Smalltalk, and Rewriting a Running GUI
Be sure to read the comment from Alan Kay at the bottom of the article! We succeeded in running the Smalltalk-76 language on our vintag...
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Ruby 4.0.0 Preview2
We are pleased to announce the release of Ruby 4.0.0-preview2. Ruby 4.0 updates its Unicode version to 17,0.0, and so on.
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Hacking ls -l
Greg Lehey's online diary
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The New XOR Problem
In 1969, Marvin Minsky and Seymour Papert published Perceptrons: An Introduction to Computational Geometry. In it, they showed that a single-layer perceptron cannot compute the XOR function. The main argument relies on linear separability: Perceptrons are linear classifiers, which essentially means drawing a line to…
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Implementing State Machines in PostgreSQL
Finite-state machine (FSM) is a wonderful model of computation that has many practical applications. One of my favorites is turning business logic into simple FSMs. For example consider the following requirements for an order management system:
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Making deep learning go brrrr from first principles (2022)
So, you want to improve the performance of your deep learning model. How might you approach such a task? Often, folk fall back to a grab-bag of tricks that might've worked before or saw on a tweet. "Use in-place operations! Set gradients to None! Install PyTorch 1.10.0 but not 1.10.1!"
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Functional Programming using JavaScript
There is no clear, widely-accepted definition of Functional Programming. It is a collection of related featues which cohere well into a very useful style of programming.
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Robert Elder's Guide to GNU Coreutils
Over the last 18 months, I've taken the time to create 108 short YouTube videos that summarize all of the commands that are found in the Coreutils Package . These videos focus mostly on Coreutils v8.3, but also included are a few commands from v9.0 as well. For each of the blog posts, I've adapted and modified the…
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Restoring and MIDI-Fying a Baby Grand Piano
As much as I love digital instruments, synthesizers and other electronic gear I also really love the look and feel of instruments made from wood, brass, steel and felt. There is objectively no difference between the best digitally sampled pianos but for some reason it doesn’t quite feel as much alive as an actual…
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Rewriting wipEout
The source code for the classic PSX launch title wipEout was leaked in 2022. A few month ago I finally sat down to take a look at it. The result is a (nearly) complete rewrite that compiles to Windows, Linux, macOS and WASM.
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Bevy 0.7: data oriented game engine built in Rust
Thanks to 123 contributors, 349 pull requests, and our generous sponsors, I'm happy to announce the Bevy 0.7 release on crates.io! For those who don't…
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Emacs Prelude 1.0
I’ve got a big news to share with you today - after (over) 9 years of development, Emacs Prelude finally made it to version 1.0! There’s nothing really big or groundbreaking there, as Prelude has been in a pretty good place for a very long time feature-wise, but I felt like tagging a 1.0 release, because it’s 2020 and…
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Using GRPO to Beat o1, o3-mini and R1 at “Temporal Clue”
The OpenPipe platform has migrated to Weights & Biases and CoreWeave. Browse migration details and the OpenPipe technical archive.
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Sentry: From the Beginning
I've been trying to invest more and more of my free time interacting with founders. I genuinely feel we've been through a lot with Sentry and I can provide some useful value to others. More so, I believe most people in this industry, most successful people, do others a disservice but not having honest conversations…
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Introduction to the Theory of Programming Languages (1991)
Short version: the full text of my Introduction to the Theory of Programming Languages book (second printing, 1991) is now available. This page has more details including the table of chapters, and a link to the PDF (3.3MB, 448 + xvi pages). The book is a survey of methods for language description, particularly…
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Rust for functional programmers
This post follows up on OCaml for Haskellers from Edward Z. Yang (2010) and my own Haskell for OCaml programmers from earlier this year. Note The latest version of this document can be found online at https://dr-knz.net/rust-for-functional-programmers.html. Alternate formats: Source, PDF. Prologue Rust for C…
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