The hottest Software Substack posts right now

And their main takeaways
Category
Top Technology Topics

Demystifying secure NFS

Blog System/5 • 744 implied HN points • 04 Nov 24
🕹 Technology Software
  1. NFSv3 is not secure because it trusts clients too much and does not encrypt traffic. This means anyone on the network can access sensitive data if they can impersonate a user.
  2. NFSv4 is much better because it uses usernames for permission checks and can work with Kerberos for strong security features. This ensures that only authorized users can access files.
  3. Setting up NFSv4 with Kerberos can be really complicated, but it's important for protecting data. Proper configuration is crucial, and sometimes mistakes can lead to security issues.

This New Internet Thing, Chapter 28

Life Since the Baby Boom • 691 implied HN points • 21 Nov 24
🕹 Technology Software
  1. The author is publishing a new book and sharing it in chapters online, hoping readers will find it interesting enough to buy it later.
  2. The story features characters navigating the early internet business landscape, highlighting their challenges and opportunities.
  3. There's a focus on growth versus profitability, showing the tension between the desire to expand fast and the need to make money.

The Generalize Step In TDD

Software Design: Tidy First? • 265 implied HN points • 06 Jun 25
🕹 Technology Software
  1. TDD is not just about writing tests, it also involves thoughtful design. Practitioners understand the balance between testing and creating a good product structure.
  2. Having good examples in TDD practices is really important for understanding and applying concepts effectively. Clear examples can help break down complex ideas.
  3. There is a common misconception that TDD lacks a design phase, but experienced users know that design is a key part of the process. It's essential to integrate design thinking into TDD for better outcomes.

Agent AI: Agentic Applications Are Software Systems With A Foundation Model AI Backbone & Defined Autonomy via Tools

Cobus Greyling on LLMs, NLU, NLP, chatbots & voicebots • 19 implied HN points • 05 Aug 24
🕹 Technology Software
  1. Agentic Applications are advanced software systems that use AI models to operate more independently. They can navigate and process information effectively using tools.
  2. The MindSearch framework helps break down complex questions into simpler parts, making it easier to find answers online. It simulates how humans think and search for information.
  3. There are special agents in this system, like WebPlanner and WebSearcher, that work together to gather and organize information from the web, enhancing the problem-solving process.

LangGraph Studio From LangChain

Cobus Greyling on LLMs, NLU, NLP, chatbots & voicebots • 39 implied HN points • 03 Jul 24
🕹 Technology Software
  1. LangGraph helps in creating a flow for conversational applications, allowing for both structured and flexible designs. This means you can manage how chatbots interact without forcing them into a rigid structure.
  2. With LangGraph Studio, users can visualize and control how their AI agents work. It provides tools to track performance, test different scenarios, and optimize interactions effectively.
  3. LangGraph Cloud allows developers to deploy their projects from GitHub and test them in a user-friendly environment. This makes it easier to understand and improve the behavior of AI agents in real-time.
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Introducing live video in the Substack app

Substack • 833 implied HN points • 18 Sep 24
🕹 Technology Software
  1. Substack has added a live video feature that lets creators engage with their audience in real time. This means you can share news, behind-the-scenes moments, or host interactive sessions directly from the app.
  2. When you go live, your subscribers will get automatic notifications, making it easy for them to join. You can even limit access to only paid subscribers if you want to create exclusive content.
  3. Collaborating with other creators during live videos can help expand your audience. You can invite someone else to stream with you, which is a great way to share different perspectives and increase engagement.

Is RBAC Still Relevant? Am I?

Permit.io’s Substack • 99 implied HN points • 25 Apr 24
🕹 Technology Software
  1. RBAC is still important as it simplifies the management of user permissions by linking them to roles, making it easier for developers and users to understand.
  2. Newer models like ABAC and ReBAC are gaining popularity because they offer more flexibility and can handle complex permission requirements better than RBAC.
  3. Using RBAC as a foundation allows developers to build more advanced authorization systems by layering on additional models, adapting to the changing needs of applications.

Last week at The Lunduke Journal (Dec 8 - Dec 21, 2024)

The Lunduke Journal of Technology • 574 implied HN points • 22 Dec 24
🕹 Technology Software
  1. The Linux Foundation is cutting its spending, which is a big change for the organization. This could impact their projects and overall support for Linux.
  2. There are several discrimination lawsuits involving major companies like IBM, Red Hat, and Mozilla. These legal battles could lead to significant changes in how these companies operate.
  3. ChatGPT cannot mention a specific name, which raises questions about content moderation and restrictions. This situation is quite unusual and highlights issues with AI usage.

Disillusioning the Magic of the fork System Call

Confessions of a Code Addict • 649 implied HN points • 26 Nov 24
🕹 Technology Software
  1. The fork system call creates a new process that is a copy of the parent process, but each can follow a different path after the call. This is why a program can behave differently depending on which process it is in.
  2. When the fork call is made, the operating system needs to return distinct values to both the parent and child processes. The kernel sets the return value for the child process to 0, while the parent gets the child’s process ID.
  3. System calls are handled in the kernel, which means understanding their low-level operations helps us see how programming languages like C manage processes, revealing the complexity hidden behind simple function calls.

Evals Startups Are Not Enterprise Ready

Enterprise AI Trends • 253 implied HN points • 08 Jun 25
🕹 Technology Software
  1. Evals platforms may not be enterprise ready yet, as they often just repackage simpler tasks rather than offering real value. It's better to explore free open-source options first.
  2. The market for evals is crowded and competitive, leading to similar features across different products. This makes it a buyer's market, with pricing being more important than unique capabilities.
  3. Using open-source tools can provide most features needed without locking you into one vendor. Building internal capabilities first can help avoid future complications when needing to switch providers.

The real "Year of The Linux Desktop"...

The Lunduke Journal of Technology • 574 implied HN points • 18 Dec 24
🕹 Technology Software
  1. The Linux desktop is becoming more popular and user-friendly. More people are starting to see it as a viable alternative to other operating systems.
  2. New software and updates are making Linux easier for everyone to use. People don’t need to be experts anymore to enjoy its benefits.
  3. Community support and resources for Linux are growing. This means users can get help and share ideas more easily.

Unity changes: why PC & console devs feel like the 'ugly duckling'

The GameDiscoverCo newsletter • 393 implied HN points • 13 Sep 23
🕹 Technology Software
  1. Unity announced changes to its game engine license pricing model based on 'number of installs of your game'.
  2. Unity's engine business for PC/consoles is less important financially compared to its mobile ads/mediation division.
  3. The new pricing model by Unity has caused dissatisfaction among developers, especially PC and console developers.

The Sequence Radar #759: Grok 4.1, Gemini 3 Pro and the Agentic Stack, Plus a Personal Note

TheSequence • 56 implied HN points • 23 Nov 25
🕹 Technology Software
  1. Grok 4.1 is designed to be a more user-friendly AI model, improving reasoning and writing coherence. It’s not just a fun experiment anymore, but ready for real production work.
  2. Gemini 3 Pro is a powerful tool that can handle complex tasks and mixed media seamlessly, acting more like an engine for planning and execution than just a chatbot.
  3. The new Antigravity environment lets AI manage multiple tasks like coding and testing, making it a unique tool for developers to boost their workflow efficiently.

Goodbye, Menu Interfaces

In My Tribe • 440 implied HN points • 14 Feb 25
🕹 Technology Software
  1. Menu interfaces on websites may soon disappear. Instead of searching through menus, people will just ask AI what they need.
  2. Using AI means users can create their own features and functions. This makes getting information or services much easier and more personal.
  3. Web design jobs could change a lot as sites become less necessary. AI will interact with databases, and users will communicate with AI instead.

Augmented Coding: Copy/Paste Detector

Software Design: Tidy First? • 243 implied HN points • 09 Jun 25
🕹 Technology Software
  1. Copying and pasting code can help speed up development but may lead to issues if you're not careful. It's important to ensure that the pasted code fits well with the rest of your project.
  2. Having a clear design sense is crucial when coding. If your code lacks structure, it can become messy and hard to manage later on.
  3. Learning from mistakes in coding can lead to important lessons for future projects. Sharing these lessons can help others avoid the same pitfalls.

When software stops caring

Sunday Letters • 99 implied HN points • 21 Apr 24
🕹 Technology Software
  1. Enterprise software focuses more on the buyer than the user, making user experience less important. It just needs to be usable enough to avoid complaints.
  2. Consumer software prioritizes a great user experience because users can easily switch. This keeps companies on their toes to fix bugs and improve features quickly.
  3. Emerging apps from big tech are stuck in the middle. They need basic functionality but often don’t get the attention they need, leading to worse user experiences over time.

Kernel Bypass with Solarflare

Low Latency Trading Insights • 196 implied HN points • 02 Feb 24
🕹 Technology Software
  1. Solarflare specializes in high-performance, low-latency networking solutions like NICs used in data centers and financial services.
  2. Solarflare provides hardware such as Flareon adapters and XtremeScale NICs for high-speed networking.
  3. Software offerings from Solarflare like Onload and TCP Direct provide APIs for accelerated network performance and lower latency.

Functional Genie

Software Design: Tidy First? • 243 implied HN points • 08 Jun 25
🕹 Technology Software
  1. When coding in Rust, it can be tricky to use the right idioms, especially when dealing with functions that return an Option. It's good to pay attention to how you handle these results.
  2. In Rust, the common way to check for values is with an 'if' statement, which can take some getting used to if you're new to the language.
  3. Building a high-quality map implementation in Rust can be performance competitive, but learning the language and its features is essential for success.

A Programmer’s Guide to x86-64 Assembly (Series Overview)

Confessions of a Code Addict • 192 implied HN points • 16 Jul 25
🕹 Technology Software
  1. Understanding assembly language is important because it helps you see how high-level code runs at the machine level. This knowledge can make you a better programmer.
  2. The series will cover the basics like bits, memory, and CPU instructions, so even beginners can follow along. You'll build skills to read and write real assembly programs.
  3. Future topics will include practical applications like system calls and writing command-line utilities. You'll learn useful skills for tasks beyond just programming.

Under the microscope: Planet Joker (Saturn)

Rings of Saturn • 43 implied HN points • 04 Dec 25
🕹 Technology Software
  1. Planet Joker is a Japan-only, somewhat clunky Sega Saturn shooter that can be made easier using built-in cheat inputs for unlimited health and stage/weapon selection.
  2. Unlimited health is enabled from the mode select by holding Z+Left and pressing Start, and a debug mission select (letting you choose StageNO, time/score/boss modes and tweak ShootKind/ShootLebel) appears by holding Z+Up+A at the machine select.
  3. The cheats were found by memory inspection; specific addresses and functions control input checks, health resetting, game mode, and mech unlocking (e.g., held-button at 0602b4b8, health flag at 0602b318, game mode at 0602ce60, and an Action Replay code 1602b354 0003 to add the extra mech).

Introducing LizardOS: The Ultimate Software Solution for Crypto Security

DeFi Education • 759 implied HN points • 06 Apr 23
🔮 Crypto Software
  1. LizardOS is a new software designed for crypto security that focuses on privacy and ease of access. You can buy it with Bitcoin and you don't need to give any shipping details.
  2. The software guarantees a genuine version with tamper-free installation, backed by a digital signature from the creators. This ensures that you get the real deal.
  3. Currently, LizardOS only works with specific Lenovo laptops and is not compatible with Macs. If you want to use it, you need to buy the right hardware separately.

Finding the CAP theorem of agents

Sunday Letters • 59 implied HN points • 02 Jun 24
🕹 Technology Software
  1. The CAP theorem shows that in any distributed system, you can only achieve two out of three things: consistency, availability, or partition tolerance. This means when things go wrong, you have to choose which one you're willing to sacrifice.
  2. In AI programming, there's a similar tension between using complex AI models and the need for reliable, deterministic code. Balancing these two aspects is a challenge, much like the early challenges with web applications.
  3. As technology evolves, the understanding and frameworks around these issues may improve. Just like how programmers now design around the CAP theorem, we might see better solutions and choices for AI challenges in the future.

OMG Clipchamp!

My Home Office Hacks • 10 implied HN points • 02 Feb 26
🕹 Technology Software
  1. Clipchamp, included in Microsoft 365, makes it really easy to record your screen with you on camera so you can give clear, spoken walkthroughs.
  2. It offers many of the same features as much more expensive tools like Camtasia, so you essentially get professional screen-recording capabilities without extra cost.
  3. Also covered are practical home-office tips (like cable management), a movie poll, and information for paying subscribers on how to check if an email was part of a breach.

Under the microscope: Michelin Rally Masters (PlayStation)

Rings of Saturn • 43 implied HN points • 02 Dec 25
🕹 Technology Software
  1. Many published cheats are wrong because the game expects a 13-character code, not the 12-character string that appears on most sites; the correct "unlock everything" code includes a final question mark.
  2. The code system is fairly complex: it uses a 32-character alphabet, three separate checksums, and a PRNG that shifts the alphabet to decode the first ten characters.
  3. Entering a valid code unlocks six bonus cars and enables the WRC and Legends single-player modes, but it doesn’t add any extra drivers beyond those listed in the manual.

Last week at The Lunduke Journal (Nov 24 - Nov 30, 2024)

The Lunduke Journal of Technology • 574 implied HN points • 01 Dec 24
🕹 Technology Software
  1. The C++ Standards Group made headlines by banning a contributor just for using the word 'Question' in their work. It shows how strict and odd some technical communities can be.
  2. The Linux Code of Conduct Board also banned a developer for not apologizing enough, highlighting tensions in developer communities around behavior expectations.
  3. Microsoft has faced accusations from Google about using 'dark patterns' in their Edge browser, pointing to ongoing issues with user experience and ethical design in tech.

Backstage’s journey from spreadsheets to global IDP standard | Spotify’s Tyson Singer

Dev Interrupted • 14 implied HN points • 20 Jan 26
🕹 Technology Software
  1. Backstage evolved from spreadsheets into a company-wide developer portal (Portal) that uses golden paths and an AI Knowledge Assistant to scale support and cut internal tickets nearly in half.
  2. New agentic AI tools like Cowork, Gas Town, and Loom are moving AI from giving advice to doing work autonomously, which creates a need for complex orchestration and tiny task decomposition.
  3. The engineer role is shifting from solo coder to conductor of digital workers, so raw output metrics (like diffs per developer) can mislead and teams should focus on judgment, system design, and sustainable processes.

AI Infra Companies Are Coming for Verticals

Enterprise AI Trends • 211 implied HN points • 24 Jun 25
🕹 Technology Software
  1. AI infrastructure companies are starting to create their own products for specific industries, which could hurt existing vertical businesses. This trend is called 'infra verticalization.'
  2. These infrastructure firms have a unique advantage because they collect valuable data that helps them see what works best in the market.
  3. The relationship between vertical AI and infra companies is getting tricky as they compete for the same customers and market space.

Features & Options Revisited

Software Design: Tidy First? • 220 implied HN points • 13 Jun 25
🕹 Technology Software
  1. Software has two main ways to create value: features and options. Features are what the software can do now, and options are what it can potentially do in the future.
  2. Features give immediate benefits, while options provide possibilities for growth and adaptation. It's important to balance both in software design.
  3. It's essential to have a clear plan and structure when developing software. This helps ensure that all important parts are included and can be effectively communicated.

Understand AI or die trying

Technically • 43 implied HN points • 04 Dec 25
🕹 Technology Software
  1. Understanding how AI works is crucial to using it effectively. If you learn the basics, you can make AI a powerful tool instead of letting it take over your job.
  2. Many people use AI tools lazily and don’t take the time to understand how they work. This can lead to getting replaced if you’re not careful with your AI usage.
  3. There are resources available to help you learn about AI, and it's important to use them. The more you know, the better you can leverage AI in your work.

Weekly Dose of Optimism #151

Not Boring by Packy McCormick • 189 implied HN points • 04 Jul 25
🕹 Technology Software
  1. Hermeus is making waves in aviation by speeding up aircraft development, aiming to make travel faster and improve social and economic growth in America. They're pushing for supersonic travel to bring the excitement back to flying.
  2. The FAETON-I fusion device from Fuse Energy is a big step toward making fusion energy a reality, with some impressive outcomes that could change the future of energy production. This could lead to safer world and more available energy for everyone.
  3. Chai Discovery's new AI model, Chai-2, is revolutionizing how antibodies are designed, making the process faster and more efficient. This advancement could lead to better treatments for diseases much quicker than before.

Adobe

Business Breakdowns • 353 implied HN points • 18 Apr 23
💼 Business Software
  1. Adobe sells software for designers and marketers, known for products like Photoshop.
  2. Adobe's business is divided into three segments: Digital Media, Digital Experience, and Publishing.
  3. Adobe transitioned from product sales to subscription revenue model, leading to significant growth and challenges.

Last week at The Lunduke Journal (Nov 3 - Nov 9, 2024)

The Lunduke Journal of Technology • 574 implied HN points • 12 Nov 24
🕹 Technology Software
  1. GIMP 3.0 has been released, which is exciting for graphic design enthusiasts. It's always good to have updates that improve software!
  2. Notepad.exe is now using Artificial Intelligence, which sounds surprising. It's interesting to see simple tools getting smarter.
  3. Mozilla recently underwent mass layoffs, which is a significant shift for the company. It shows how the tech industry is always changing and sometimes facing tough decisions.

Penny-Wise and Pound-Stupid

Rethinking Software • 549 implied HN points • 18 Nov 24
🕹 Technology Software
  1. Outsourcing might seem like a money-saver, but it can make teamwork harder and slow down projects. It's important to consider all the hidden costs before deciding.
  2. Using low-quality tools can frustrate programmers and hurt their morale, which ultimately harms productivity. Giving developers good tools shows that you value their work.
  3. Keeping everyone busy all the time doesn't always mean being productive. It's better to let teams focus on clearing bottlenecks and maintaining a good workflow instead.

Making a plan

Register Spill • 334 implied HN points • 04 Jun 23
🕹 Technology Software
  1. Making a plan before starting a project is crucial for success.
  2. A detailed plan helps in thinking through the tasks and potential challenges.
  3. Writing down tasks and delegating them can improve productivity and efficiency.

OpenAI’s Deep Research: The "Big Bang" Event for AI Agents

Enterprise AI Trends • 400 implied HN points • 06 Feb 25
🕹 Technology Software
  1. OpenAI's Deep Research feature allows users to get thorough research done quickly, acting like a smart research assistant. This can save a lot of time compared to traditional searching methods.
  2. Deep Research is designed to work on its own, leading the research process instead of needing constant input. This makes it more productive and user-friendly.
  3. As Deep Research becomes popular, competition in the AI space will change. Companies will now need to clearly explain how their offerings are better than Deep Research, raising the standard for AI tools.

Refactoring: Narrow ↔ Widen Parameter

Software Design: Tidy First? • 530 implied HN points • 25 Nov 24
🕹 Technology Software
  1. Narrowing and widening parameters are important techniques in refactoring code. They help make the code more flexible and easier to understand.
  2. Refactoring can initially seem tricky, but it can also be enjoyable and rewarding. It's a good practice to keep improving your code.
  3. Getting feedback on your refactoring efforts is valuable. It helps you see what works and what can be improved.

Thank You, Goodbye and Good Luck!

davidj.substack • 143 implied HN points • 31 Jul 25
🕹 Technology Software
  1. Today is the author's last day at Cube and he expresses gratitude to his colleagues and investors. He feels fortunate to be in a good position and reflects on his time there.
  2. He believes in the importance and future of semantic layers in data management, which are getting better as AI technology develops. Many major cloud platforms now have their own semantic layers.
  3. The author wonders if semantic layers can operate in the background without needing constant human oversight. He is excited to see how these technologies will evolve and improve.