The hottest Programming Substack posts right now

And their main takeaways
Top Technology Topics
The Chip Letter • 6577 implied HN points • 10 Mar 24
  1. GPU software ecosystems are crucial and as important as the GPU hardware itself.
  2. Programming GPUs requires specific tools like CUDA, ROCm, OpenCL, SYCL, and oneAPI, as they are different from CPUs and need special support from hardware vendors.
  3. The effectiveness of GPU programming tools is highly dependent on support from hardware vendors due to the complexity and rapid changes in GPU architectures.
Crow & Colophon • 3 HN points • 15 Jun 24
  1. The question of whether algorithms can be considered beautiful, like poetry, sparks thoughtful considerations about the nature of code and its impact on our world.
  2. The discussion highlights the interconnectedness between literature, programming, and the human condition, prompting reflections on the beauty and artistry inherent in code.
  3. Various perspectives from programmers and computing experts showcase the idea of code as poetry and how programming can be seen as a form of art, invoking creativity, skill, and ingenuity.
Cloud Irregular • 3104 implied HN points • 14 Feb 24
  1. The Cloud Resume Challenge community is launching a Kubernetes Challenge throughout March to help individuals build their Kubernetes skills by deploying a basic e-commerce website.
  2. The challenge focuses on learning the operations of a K8s cluster such as configuration, scaling, monitoring, and persistence, offering guidance to prevent going off track.
  3. Participants will work through the challenge together over 4 weeks in the CRC Discord server, with special incentives for those who complete it.
Bite code! • 2568 implied HN points • 04 Feb 24
  1. TDD can make your code more flexible, reliable, and less error-prone by focusing on testing upfront.
  2. TDD may not work well for everyone, as it requires experience, ability to hold complex models in mind, and sustained focus.
  3. Not all projects are suited for TDD, and it's important to assess the cost and benefit of testing based on project needs and constraints.
Bite code! • 1957 implied HN points • 19 Feb 24
  1. Python automatically concatenates strings written next to each other, making it easier to break long strings across multiple lines.
  2. In Python, be mindful of the differences between functions like sorted() and list.sort(), as they behave differently in terms of returning values.
  3. Tuples in Python are created using commas, with parentheses being optional for non-empty tuples, but crucial for tuples of one element to avoid confusion.
Get a weekly roundup of the best Substack posts, by hacker news affinity:
Bite code! • 1467 implied HN points • 03 Mar 24
  1. Redis is a powerful companion for Python, used for caching, sharing states, and creating queues.
  2. Redis is easy to use and highly efficient, widely employed in the industry for tasks like caching and inter-process communication.
  3. With basic features like lists, hashes, and sets, Redis has vast utility in tasks such as caches, queues, and inter-process communication.
MOHAMMED JAMAL • 204 HN points • 12 May 24
  1. Lisp is a programming language known for treating code and data as interchangeable, a concept called homoiconicity, allowing for unique expression within the language.
  2. By translating Lisp expressions into Python constructs like function calls and lists, programmers can maintain the essence of Lisp in a more familiar syntax.
  3. Incorporating features like lambdas in Python, inspired by Lisp, provides the ability to define and call functions recursively, essential for creating Turing complete languages.
Art’s Substack • 3 HN points • 12 Jun 24
  1. The One Billion Row Challenge in Rust involves writing a program to analyze temperature measurements from a huge file, requiring specific constraints for station names and temperature values.
  2. The initial naive implementation faced performance challenges due to reading the file line by line, prompting optimizations like skipping UTF-8 validation and using integer values for faster processing.
  3. Despite improvements in subsequent versions, performance was still slower than the reference implementation, calling for further enhancements in the next part of the challenge.
Art’s Substack • 79 implied HN points • 14 May 24
  1. Porting a system from Python to Rust led to a significant cost reduction of 1400 times, increased pipeline success rate from 85% to 99.88%, and decreased data availability time from 10 hours to less than 15 minutes.
  2. Moving from reading everything into memory to streaming fashion and eliminating the intermediate JSON format were key improvements in the data processing system.
  3. Python's interpreted nature, dynamic typing, GIL limitations, and multiple packaging options can pose challenges in production systems, making it a less ideal choice for certain needs.
Art’s Substack • 39 implied HN points • 24 May 24
  1. In Rust, sending futures between threads safely can lead to compilation errors. This can happen when sharing mutable data across threads that must be protected with a Mutex.
  2. The issue with sending futures between threads safely is due to the fact that futures in Rust are required to implement the 'Send' trait. Problems arise when trying to hold a MutexGuard across an await, causing the future not to be Send.
  3. To resolve issues related to sending futures between threads safely in Rust, one solution is to explicitly introduce a scope to handle locking and unlocking of the MutexGuard around the await, ensuring that the future is 'Send'.
The Lunduke Journal of Technology • 5165 implied HN points • 16 Apr 23
  1. The first interview about Linux with Linus Torvalds was published in a small E-Mail newsletter in 1992.
  2. The newsletter was significant as it was the first written specifically for Linux and contained the first interview ever with Linus Torvalds about Linux.
  3. Linus Torvalds started working on Linux after taking a UNIX and C course at university, and the system evolved from a terminal emulator to a UNIX-like system.
Bite code! • 856 implied HN points • 30 Jan 24
  1. A new Python video game, JOY OF PROGRAMMING, is available on Steam for learning programming interactively.
  2. Pyodide, a Webassembly CPython port, now has experimental support from urllib3, enabling Python to run in the browser.
  3. Numpy 2 is set to release soon, with changes that may impact compatibility, so users should prepare by checking and updating dependencies.
Import AI • 1058 implied HN points • 08 Jan 24
  1. PowerInfer software allows $2k machines to perform at 82% of the performance of $20k machines, making it more economically sensible to sample from LLMs using consumer-grade GPUs.
  2. Surveys show that a significant number of AI researchers worry about extreme scenarios such as human extinction from advanced AI, indicating a greater level of concern and confusion in the AI development community than popular discourse suggests.
  3. Robots are becoming cheaper for research, like Mobile ALOHA that costs $32k, and with effective imitation learning, they can autonomously complete tasks, potentially leading to more robust robots in 2024.
Blog System/5 • 493 implied HN points • 29 Feb 24
  1. The post summarizes interesting articles, videos, and projects from February 2024 with added commentary to urge readers to explore the content.
  2. There are discussions on topics like old hardware databases, software development reflections, and the challenges of modern software bloat.
  3. The author explores topics like breaking memory limitations in DOS, DJGPP running GNU programs on DOS, and the creation of a library in Rust for implementing memory vulnerabilities.
Data at Depth • 59 implied HN points • 13 May 24
  1. GPT-4 can be useful for generating data cleaning and visualization code in Python when combined with libraries like pandas and plotly
  2. Using GPT-4, you can learn how to clean datasets, create choropleth maps, and even animated choropleth maps to visualize data over time
  3. Interactive geospatial data visualizations that tell stories over time can be quickly created with Plotly by using GPT-4 prompts
Hardcore Software • 687 implied HN points • 24 Jan 24
  1. The introduction of the Apple Macintosh in 1984 profoundly changed computing and many people's lives
  2. The Macintosh brought empowerment, elegance, and a sense of mastery to users and developers, setting a new standard in the industry
  3. The Macintosh's impact was widespread, transforming document creation, software development, and user experiences on college campuses and beyond
Farrs’s Substack • 125 HN points • 20 Apr 24
  1. Personal Computers were gaining popularity in 1983, despite being considered toys by some programmers, and had promising applications developed for them.
  2. Taking a risk to work in Personal Computer Software Development led to a successful job offer and opportunity to solve a challenging memory limitation issue.
  3. Facing skepticism and disrespect at the company, the individual showcased exceptional bug-solving abilities, but ultimately chose to leave due to being labeled unfairly.
Mostly Python • 314 implied HN points • 07 Mar 24
  1. There are two main types of bugs - those that cause code to break and those that are logical errors, which are harder to fix as the code runs without generating a traceback.
  2. Current platforms like Substack and Ghost have limitations in displaying code blocks, lacking proper syntax highlighting and tools for pointing out specific lines.
  3. Developing utility functions to isolate and troubleshoot problematic code can make it easier to maintain and use in larger projects, ultimately saving time and effort in the long run.
Tjaart’s Substack • 368 HN points • 20 Feb 24
  1. A missing period in an email was a perplexing issue that affected only specific customers due to the line length limitations in the Simple Mail Transfer Protocol (SMTP).
  2. The bug was traced back to the SMTP client code and the line length rule, which duplicated periods at the beginning of lines longer than a certain limit, causing them to disappear.
  3. The issue showcased the importance of understanding underlying protocols like SMTP to troubleshoot and fix unexpected problems efficiently.
Confessions of a Code Addict • 577 implied HN points • 15 Jan 24
  1. Code efficiency at scale is crucial - data structures and algorithms matter, but execution cost is also important.
  2. Participating in challenges like the 1 Billion Row Challenge can enhance performance engineering skills.
  3. The workshop covers optimization techniques like flamegraphs, I/O strategies, system calls, SIMD instructions, and more.
Console • 531 implied HN points • 21 Jan 24
  1. Planify is a task manager designed for GNU/Linux, inspired by popular task managers like Things 3 and Todoist.
  2. Planify's developer, Alain, started the project as a way to create a task manager with a nice design and good functionality for Linux users.
  3. Planify is free to download and is maintained through donations, with a focus on design, detail, and user-friendly elements.
The Chip Letter • 2672 implied HN points • 16 Apr 23
  1. Gordon Moore's notebooks from Fairchild provide a unique insight into his work and research in the early days of computing.
  2. Assembly language, especially 8-bit, was more popular and necessary in the past compared to modern 64-bit architectures.
  3. Nvidia's survival and success were closely tied to their alignment with Moore's Law in the GPU industry.