The hottest Technology Substack posts right now

And their main takeaways
Category
Top Technology Topics

Elixir Code Smells

Elixir & Erlang • 0 implied HN points • 24 Jun 22
🕹 Technology Programming
  1. The post discusses 'Code Smells in Elixir' and insights from a paper on the topic.
  2. The episode featured Lucas Vegi, a professor at UFV, and Marco Tulio Valente, a professor at UFMG.
  3. The podcast was recorded in Portuguese but has English subtitles available.

Elixir Meetup #6 hosted by Curiosum

Elixir & Erlang • 0 implied HN points • 07 Jun 22
🕹 Technology Meetup Programming
  1. Adolfo Neto will be presenting 'Learning Erlang and Elixir through Exercism and the Advent of Code' at Elixir Meetup #6 hosted by Curiosum.
  2. Gustavo Oliveira will be presenting 'Use TDD step by step with LiveView' at the same meetup.
  3. Phoenix LiveView is a library for the Phoenix web framework that provides rich, real-time user experiences with server-rendered HTML.

🐿️ Tracer Bullets - The Insanely Profitable Tech Newsletter

Squirrel Squadron Substack • 0 implied HN points • 06 Feb 26
🕹 Technology Software Product Engineering Quality Assurance
  1. Treat mistakes like tracer bullets: run cheap, fast experiments that will often be wrong so you get immediate feedback and learn quickly.
  2. Don’t stop at technical fixes — use failures to change culture and processes so you root out over-optimism, whitewashing, and the normalization of bad practices.
  3. Build disciplined rapid-learning loops: ask why repeatedly, do frequent post-mortems, and update norms so teams converge on the right results and make mistakes harder to repeat.

How to Improve Android App Performance

Better Engineers • 0 implied HN points • 22 Apr 24
🕹 Technology App Development Performance User Experience Android Software Engineering
  1. Identify and monitor app performance issues, like slow rendering and frozen frames, to enhance user experience. It's important to keep the app responsive to avoid losing users.
  2. Use tools like Firebase Performance Monitoring to track performance data and identify problems, such as long UI thread operations that can cause jank.
  3. Implement strategies to improve performance, like using View Stubs for loading UI components on demand and avoiding long tasks on the main thread, which can make the app freeze.

Coming soon

Kevin’s Substack • 0 implied HN points • 15 Mar 24
🕹 Technology Social media
  1. Kevin Bedi will be launching something new soon on his Substack page
  2. The focus of the Substack page is called mashlol
  3. Kevin is encouraging subscriptions to stay updated on the upcoming launch
Get a weekly roundup of the best Substack posts, by hacker news affinity:

LifeGPT: Training a Psychic LLM to Predict Your Life

Alex Furmansky - Magnetic Growth • 0 implied HN points • 26 Dec 23
🕹 Technology AI Predictions Ethics Applications Future implications
  1. LifeGPT could predict specific life events like marriage or career paths with stunning accuracy.
  2. People may turn to AI like LifeGPT for decision-making and guidance instead of traditional sources like priests or psychics.
  3. LifeGPT's potential implications range from changing insurance pricing and healthcare to impacting relationships and careers.

How to Design Software — Tags and Groups

Joseph Gefroh • 0 implied HN points • 22 Dec 16
🕹 Technology Software Design Database Management
  1. When designing software, consider implementing a tagging system for ordering, filtering, grouping, and organizing records based on properties.
  2. Using comma-separated strings in a single database column for tags is simple but leads to difficulties in querying, formatting errors, and length limitations.
  3. Storing tags in separate columns might seem organized, but it can complicate querying and checking for the existence of tags across multiple columns.

How to Design Software — Rules Engines

Joseph Gefroh • 0 implied HN points • 09 Jul 20
🕹 Technology Software Design Engineering Systems Coding
  1. Rules engines can help prevent constant interruptions in engineering work by allowing other departments to make changes without engineer involvement
  2. Rules engines are systems that execute actions based on conditions that can be configured during runtime, making them dynamic and adaptable
  3. Using rules engines can reduce the fragility of concrete coding implementations, enabling easier modifications as business requirements evolve

Tim Cook says AI is the key to fighting climate change, Stability AI CEO resigns and more

aiproinsights • 0 implied HN points • 24 Mar 24
🕹 Technology AI Climate Aviation
  1. Tim Cook highlights AI as crucial in addressing climate change by aiding companies to lower emissions and become carbon neutral.
  2. Stability AI CEO resigns amidst investor pressure and internal strife, now focusing on addressing power concentration in AI.
  3. Boom Supersonic, a startup pursuing the world's fastest airliner, completes its first flight, called "Baby Boom".

How to seed systems

Joshua Gans' Newsletter • 0 implied HN points • 11 Feb 24
🕹 Technology UI AI Systems Computing AR/VR
  1. New systems are born from the discovery of the right user interface for a technology, which lowers accessibility costs and incentivizes new applications.
  2. Apple has a history of seeding ecosystems by creating the right user interface - such as with graphical computing and mobile computing.
  3. The Vision Pro by Apple exemplifies the importance of UI innovation, especially for technologies like spatial computing, which has the potential for transformative impacts.

Making real-time chat functionality Healthie-r with AnyCable Pro

AnyCable Broadcasts • 0 implied HN points • 29 Jun 22
🕹 Technology Software Infrastructure Migration Support
  1. Healthie successfully migrated from Action Cable to AnyCable Pro to improve real-time chat functionality, benefiting from dual broadcast strategy support.
  2. Usage of AnyCable Pro bypassed starting with the open-source version, showcasing its benefits immediately for Healthie's infrastructure.
  3. Healthie's critical chat system now heavily relies on AnyCable for 1-1 and group chats between healthcare professionals and clients, available on web and mobile platforms.

When Things Take Shape

polymathematics • 0 implied HN points • 18 Jan 24
🕹 Technology Software Productivity User Experience Design Entrepreneurship
  1. When you really connect with your ideas, it feels like everything just clicks into place. You can almost feel that flow and energy driving you forward.
  2. The new version of Cubicle has been made simpler and prettier, focusing on ease of use. It combines important tools into one place to help you stay organized without hassle.
  3. Having a manageable tool like Cubicle can improve how you work, making tasks feel less overwhelming. Many users find they get a lot more done with the right approach.

Exploring Rails 7, Hotwire and AnyCable speedy streams

AnyCable Broadcasts • 0 implied HN points • 23 Dec 21
🕹 Technology Programming Web Development Ruby Real-time Authentication
  1. The post explores building a new Rails 7 application with features like `--css=tailwind`, Turbo Frames and Streams, and configuring AnyCable with JWT authentication and speedy streams.
  2. The screencast series 'AnyCasts' covers real-time web app development using Ruby and other languages, alongside Hotwire and Stimulus Reflex.
  3. Resources include the Rails 7 release announcement, Turbo Frames documentation, AnyCable blog, and plugins like AnyCable Rails JWT for JWT identification in AnyCable.

AnyCable v1.2: JWT identification and "hot streams"

AnyCable Broadcasts • 0 implied HN points • 29 Sep 21
🕹 Technology Web Development Backend Real-time Authentication Performance
  1. AnyCable v1.2 introduces JWT identification and 'hot streams' for powering up efficient Hotwire frontends by moving functions from Ruby to Go.
  2. JWT identification standardizes authentication for WebSockets, protects from cross-site WebSocket hijacking, and boosts performance by removing the need for RPC calls.
  3. Combining JWT identification with signed streams in AnyCable allows the creation of subscriptions without touching RPC, offering improved efficiency for Hotwire and CableReady functionality.

How to Design Software — Dynamic Heatmaps (Chloropeths)

Joseph Gefroh • 0 implied HN points • 26 Jul 20
🕹 Technology Software Design Web Development Coding
  1. Building a dynamic heatmap for personal projects can be cost-effective and rewarding instead of purchasing licenses from charting companies.
  2. Heatmaps, also known as chloropeths, involve color-coding sections of a map based on a specific scale.
  3. Creating a customized heatmap requires a map SVG, coding to manipulate the map with JavaScript, and organizing data for efficient color application.

📚 Book club: Domain Modeling Made Functional

🔮 Crafting Tech Teams • 0 implied HN points • 21 May 24
🕹 Technology Engineering Reading Leadership Learning Skill development
  1. The book 'Domain Modeling Made Functional' is highly recommended for its unique approach that discusses implementation without overwhelming object-oriented patterns.
  2. The book club offers a structured environment with calls, accountability groups, and networking opportunities to support learning and growth.
  3. Tips for optimizing your reading process include speed reading techniques to save time, amplify knowledge, boost confidence, improve focus, and absorb key insights for applying changes effectively.

A call for Pro: Callbell

AnyCable Broadcasts • 0 implied HN points • 03 Aug 21
🕹 Technology Software Programming Web Development Communication Scaling
  1. Callbell reduced the number of dyno instances needed on Heroku by half when they switched to AnyCable Pro.
  2. AnyCable Pro provides support for binary communication protocols, beneficial for features in binary formats, which is a key advantage for the Callbell team.
  3. Any Rails app needing real-time WebSocket updates, like messaging or customer support tools, can benefit from AnyCable's scalability while remaining in a familiar environment.

iOS and macOS should offer higher opt-in security

Kartick’s Blog • 0 implied HN points • 17 Mar 23
🕹 Technology Security Privacy Software Encryption
  1. iOS and macOS are already secure platforms, but not all security enhancements are suitable for all users.
  2. Apple should allow users to opt-in for higher security settings to enhance protection.
  3. Offering different levels of security options can cater to users with varying security needs and push the industry towards better security practices.

How to Design Software — Report Generators

Joseph Gefroh • 0 implied HN points • 09 Aug 21
🕹 Technology Software Design
  1. Developers often face challenges with creating reports in a way that handles various requests efficiently.
  2. Every report consists of data records, data values, labels, and format, which are essential components to consider.
  3. The steps to generate a report involve setting up parameters, fetching records, mapping fields, converting records into report entries, and sending back the report to the user.

The Macbook Pro (Mini LED) is an excellent laptop

Kartick’s Blog • 0 implied HN points • 22 Feb 23
🕹 Technology Laptops Performance
  1. The Macbook Pro with Mini LED screen displays HDR videos exceptionally well, with bright highlights and deep blacks, providing a realistic viewing experience.
  2. The 16:10.3 aspect ratio of the screen offers increased height, making the display feel spacious and immersive.
  3. The M1 Macbook Pro demonstrates superior responsiveness compared to Intel computers, opening apps instantly and setting a new standard in speed and performance.

How to Design Software — Monitoring Systems

Joseph Gefroh • 0 implied HN points • 06 Feb 22
🕹 Technology Software Design Logic
  1. Monitoring systems are designed to determine whether something is working or not, and the concept of what is considered "working" can vary based on parameters defined by the system operators.
  2. When designing a monitoring system, it's crucial to understand what is being monitored and to keep the definition of "working" arbitrary to prevent limitations.
  3. A monitoring system consists of components like the Monitor, which contains the logic for monitoring and responding to the status of the system being observed.

Any Cables Monthly #16

AnyCable Broadcasts • 0 implied HN points • 05 Dec 23
🕹 Technology Web Technologies
  1. Action Cable features are actively being developed, expect more updates in 2024 like Async server implementation support.
  2. Stay updated with new web technologies like WebCodecs and WebTransport for advancements in real-time applications.
  3. Try out Turbo 8 beta and its companion update turbo-rails 2.0.0-beta.1 for page refreshes support in Rails.

Apache Kafka Producer — Implementation

Better Engineers • 0 implied HN points • 13 Mar 24
🕹 Technology Software Programming Data processing Cloud Services
  1. Apache Kafka is great for real-time data processing. It helps build systems that can handle lots of data without losing any of it.
  2. Using Kafka, data from different sources can be organized into topics. This is similar to how database tables work, where each topic holds specific types of data.
  3. To set up a Kafka producer, you need to add specific dependencies in your code and configure the properties to enable data to be sent to consumers.

Any Cables Monthly #15

AnyCable Broadcasts • 0 implied HN points • 07 Nov 23
🕹 Technology Programming Web Development Networking Caching Websockets
  1. Updates for newsletters are now scheduled for the first Tuesday of every month instead of Friday to better align with reader expectations and schedules.
  2. A new initiative has been announced to bring reliable and scalable real-time features to serverless JavaScript applications using AnyCable, Next.js, Vercel, and Fly.io.
  3. Consider the potential for caching at the WebSocket level to improve performance and efficiency in handling live updates within small-to-medium web applications.

AnyCable everywhere: real-time visualization streaming for Poll Everywhere

AnyCable Broadcasts • 0 implied HN points • 09 Jun 23
🕹 Technology Programming Web Development Infrastructure Software
  1. Poll Everywhere needed a fast and reliable solution for real-time chart visualizations to engage live audiences effectively during presentations and events.
  2. They switched to AnyCable Pro for faster processing of votes and feedback, improving scalability and reducing latency, especially essential as the user base grew.
  3. Migrating to AnyCable brought better performance, more predictable latency, and eliminated the need for EventMachine, making it a smoother solution for their real-time visualization infrastructure.

Personal Memoirs of a Silicon Valley Tech Whore: Part 3

Noematic Ruminations • 0 implied HN points • 21 Feb 24
🕹 Technology Startups Tech industry Work Culture Software Development
  1. The author faced challenges dealing with inappropriate behavior and micromanagement in the workplace.
  2. Facing personal attacks and project sabotage can result in significant emotional distress and professional repercussions.
  3. Handling difficult situations with toxic colleagues and supervisors can ultimately lead to making tough decisions like leaving the job.

On operations - Leveraging tempo to build software better

Joseph Gefroh • 0 implied HN points • 10 Feb 24
🕹 Technology Software Engineering Agile methodologies Leadership Team Dynamics
  1. Software engineering benefits from cyclical execution in agile methodologies like Scrum, which enable teams to respond to change effectively.
  2. Effective leadership involves setting and managing tempo in cyclical execution, allowing teams to self-synchronize and reduce friction.
  3. To establish an effective tempo, consistency, sustainability, clear starts/stops, and avoiding bleed-over work are key factors to ensure team effectiveness and prevent burnout.

AnyCable off Rails: connecting Twilio streams with Hanami

AnyCable Broadcasts • 0 implied HN points • 21 Mar 23
🕹 Technology Websockets Ruby Frameworks Real-time
  1. WebSockets are still popular and widely supported, making them essential for real-time communication between servers.
  2. Building WebSocket-driven web applications is straightforward with major web frameworks, but server-to-server connections can be more complex and require custom solutions.
  3. Using AnyCable can simplify the integration of WebSocket services, allowing for custom protocols, sophisticated data processing, and serving as a bridge between servers.

Making decisions - When should you listen to the tech community in adopting a new technology?

Joseph Gefroh • 0 implied HN points • 11 Feb 24
🕹 Technology Tech community Development Open Source
  1. Be cautious when listening to the tech community for advice on adopting new technologies, as not all ideas are suitable for every situation.
  2. Context is critical in decision-making - what works for one team or company might not work for another, so be careful with blindly following community consensus.
  3. Most developers, including many who produce content, may not be experts, so it's important to thoroughly evaluate advice before implementation and consider the source's background.

YAGNI and DRY — the KISS of Death for Your Software Project

Joseph Gefroh • 0 implied HN points • 11 Feb 24
🕹 Technology Software Development Programming Engineering Coding
  1. Popular programming mantras like YAGNI, DRY, and KISS can guide thinking towards effective development but can also be misapplied and used as justification for wrong approaches.
  2. KISS, or Keep it Simple, Stupid, promotes simplicity in software development to avoid over-engineering, but following it too strictly can lead to subpar outcomes.
  3. YAGNI, or You Aren't Gonna Need It, prevents over-engineering by focusing on present needs, but misapplication can lead to sloppy work and low-quality outcomes.

Software Engineering Techniques— Avoid leaking sensitive information with a tripwire

Joseph Gefroh • 0 implied HN points • 11 Feb 24
🕹 Technology Software Engineering Security Frameworks Serialization Coding
  1. Avoid leaking sensitive information in APIs by being cautious with serialization processes
  2. Promiscuous serialization can lead to unintentional exposure of confidential data, creating security vulnerabilities
  3. Consider using a tripwire mechanism as a security measure to prevent accidental data leaks in software development

Real-time magic, no elixirs: optimizing Sera with AnyCable

AnyCable Broadcasts • 0 implied HN points • 01 Mar 23
🕹 Technology Infrastructure Monitoring Testing Deployment CI/CD
  1. The project successfully migrated a critical GPS tracking service from Elixir to AnyCable, enabling real-time features and smoother maintenance.
  2. The team optimized the infrastructure using AWS ECS, Fargate, and CloudFormation, delivering improvements in performance, scalability, and resource management.
  3. AnyCable deployment was streamlined within the project's infrastructure, bringing in monitoring features and helping speed up the CI/CD pipeline.

Siddharth Venkatesh (Product Management Lead at Anyscale)

The Takeoff • 0 implied HN points • 24 Apr 23
🕹 Technology Product Management Open Source Community Engagement Professional development Tech Culture
  1. Building customer empathy involves engaging various team members early on in the customer engagement process.
  2. Great product managers are informed by data, not attached to their ideas, and blend qualitative and quantitative inputs.
  3. In an open-core company, interacting with a passionate community of developers is essential for product management.