The hottest Substack posts right now

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Kroger’s Retreat from Robotic Warehouses Reveals the Limits of Grocery Automation

Gad’s Newsletter • 47 implied HN points • 08 Dec 25
💼 Business E-commerce Robotics Automation Retail Supply Chain Logistics
  1. Kroger’s closure of big robotic fulfillment centers shows that centralized, capital-heavy automation often doesn’t fit grocery economics because thin margins, low and uneven online demand, long delivery distances, and volatile order patterns drove per-order costs too high.
  2. Faster, cheaper grocery fulfillment is more likely from local and flexible options — store-based picking, micro-fulfillment, and gig delivery cut last-mile costs and handle spiky demand better.
  3. Automation still has a role, but the future looks modular and collaborative: smaller, flexible robots, AI routing, and cobots that work with human pickers are more promising than giant, purpose-built robot warehouses.

A quick introduction to Memory Pools [Math Mondays]

Technology Made Simple • 179 implied HN points • 27 Feb 24
🕹 Technology Software Engineering Programming Performance Optimization Memory management
  1. Memory pools are a way to pre-allocate and reuse memory blocks in software, which can significantly enhance performance.
  2. Benefits of memory pools include reduced fragmentation, quick memory management, and improved performance in programs with frequent memory allocations.
  3. Drawbacks of memory pools include fixed-size blocks, overhead in management, and potential for memory exhaustion if not carefully managed.

2026 vibe coding tool comparison

Technically • 40 implied HN points • 18 Dec 25
🕹 Technology Pricing Databases Developer Tools Deployment Integrations
  1. Replit is the most feature-rich and makes the most polished apps, but it’s slower, can waste time and money on default automated testing, and requires payment to publish.
  2. v0 is best for people who can code — it’s fast, developer-friendly, integrates well with Supabase and Vercel, and makes deployment straightforward.
  3. Lovable and Bolt lag behind: Lovable is easy and quick but less polished with confusing pricing and security gaps, while Bolt’s planning and token pricing are opaque and it often fails to reliably implement its own plans.
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The state of B2B merch in 2026

Mehdeeka • 8 implied HN points • 03 Feb 26
💼 Business Product Marketing Branding Sales Events Growth Partnerships
  1. Treat merch as a strategic, measurable marketing tool tied to revenue; focus on converting the undecided audience and run A/B tests to prove impact.
  2. Make merch useful and experiential — personalisation and on-site customisation or problem-solving items increase keep-rate and memorability.
  3. Use small-batch, targeted activations for ABM and earned media by sending thoughtful, timely gifts with digital tie-ins and repurposing designs across channels.

Uniswap v4 at a Glance (+Vitalik Post)

DeFi Education • 659 implied HN points • 14 Jun 23
🔮 Crypto Blockchain Ethereum DeFi Smart Contracts Wallets
  1. Uniswap v4 introduces new features like programmable 'hooks' that allow developers to customize trading pools. This means more flexibility for creating unique trading tools within the platform.
  2. The transition to smart contract wallets could improve security for users, making it easier to manage funds without relying on centralized services.
  3. There's a growing concern in the crypto community about moving away from open-source projects, which might limit innovation and user freedom in the decentralized finance space.

Managing Open Source and SBOM's

Resilient Cyber • 299 implied HN points • 13 Dec 23
🕹 Technology Open Source Governance Supply Chain Software Cybersecurity
  1. It's important for organizations using open source software (OSS) to know the responsibilities of developers and suppliers. They should track updates and manage licenses to avoid risks.
  2. Creating a secure internal repository for OSS can help organizations ensure that the components meet safety and compliance standards before using them in products.
  3. Using Software Bill of Materials (SBOM) and Vulnerability Exploitability eXchange (VEX) documents helps improve transparency about the software components. This makes it easier to manage risks related to vulnerabilities.

Electronic Chopsticks!

atomic14 • 519 implied HN points • 05 Feb 25
🕹 Technology Tools Reviews DIY Electronics Gadgets
  1. The HT140 Solder Tweezers are versatile and can be powered by both a DC jack and USB-C, making them convenient to use. They heat up quickly, which is great for soldering and desoldering tasks.
  2. The tweezers come with useful accessories like a flexible USB cable, a 65W power supply, and a stand, ensuring everything is organized and easy to set up.
  3. They work well for both small and larger components, but using flux can help improve heat transfer. It's a handy tool for electronics projects, especially if you need to fix or modify boards.

The Bear Cave #244

The Bear Cave • 769 implied HN points • 20 Oct 24
💼 Business Market Analysis Regulation Corporate Governance Finance Investing
  1. Fuzzy Panda Research raised concerns about Stride Inc, suggesting it might face serious challenges after benefiting from COVID-related funding. They believe the company is going to struggle with competition and internal issues.
  2. Recent executive resignations from companies like CVS Health and The Joint Corp signal potential instability, as these leaders leave amid significant financial downturns for their companies.
  3. A new FTC rule will make it easier for consumers to cancel subscriptions. This change aims to prevent businesses from making it too hard for people to stop payments for services they no longer want.

Never express your ‘Use of Funds’ slide as percentages, why? | VC Remote Jobs & More

Venture Curator • 219 implied HN points • 30 Jan 24
💼 Business Venture Capital Job Opportunities Technology Entrepreneurship Startup funding
  1. When raising funds, focus on milestones rather than expressing your 'Use of Funds' slide as percentages to show understanding of the funding journey.
  2. Understand where the value increase in your startup will come from, ensuring the proper allocation of funds for operations, technology development, and growth metrics.
  3. Design your fundraising strategy around specific goals and targets, painting a clear picture of how the next round of funding will be achieved through key hires, customer growth, and revenue increase.

How to name a product

A Bit Gamey • 13 implied HN points • 01 Feb 26
💼 Business Strategy Domains Legal Product Marketing Branding
  1. Pick a name that clearly matches what the product is and the feeling or behavior you want people to expect.
  2. Prioritize legal safety by checking trademarks and avoiding names others already control so your brand can be defended.
  3. Verify a suitable domain (ideally an affordable .com) or plan clear modifiers, because online availability drives discoverability and credibility.

July 2024 update

Opral (lix & inlang) • 19 implied HN points • 06 Aug 24
🕹 Technology Web Software Development Databases Innovation
  1. The team is moving quickly with rewriting inlang and lix using SQLite instead of git. This change is expected to speed things up a lot.
  2. The release date for the new version is coming at the end of August, so we don't have to wait long.
  3. Lix aims to become a social network where people can share various kinds of their work, like music, video, or design projects.

Resilient Cyber Newsletter #8

Resilient Cyber • 19 implied HN points • 06 Aug 24
🕹 Technology Software Cybersecurity AI Leadership Vulnerability Management
  1. CrowdStrike is facing lawsuits after a significant outage affected Delta Airlines and many flights. This situation raises concerns about the reliability of software and the idea of software liability.
  2. Cybersecurity has many common mistakes, or anti-patterns, that organizations fall into. These include chasing the latest trends instead of focusing on core security practices.
  3. The SEC's new rules may be harming the effectiveness of Chief Information Security Officers (CISOs) in the U.S., making it harder for them to focus on reducing risks for their organizations.

How Not To Be A Bitcoin Asshole

QTR’s Fringe Finance • 52 implied HN points • 30 Nov 25
🔮 Crypto Investing Regulation Risk management Bitcoin Market Analysis
  1. You can invest in Bitcoin and still be careful about its risks. It's important to have a realistic view and not get too caught up in the hype.
  2. While Bitcoin is an interesting idea with potential, it doesn't have the same proven value as gold. Gold has been around for thousands of years, while Bitcoin is still relatively new and uncertain.
  3. Being critical and skeptical about Bitcoin doesn't mean you hate it. It’s okay to recognize both the potential and the dangers that come with investing in it.

Intercom's decisive bet on AI

Kyle Poyar’s Growth Unhinged • 315 implied HN points • 21 May 25
💼 Business AI Customer Service Pricing Technology Startups
  1. Intercom was quick to invest in AI, becoming a leader by being the first major SaaS company to do so. Their 'war time' CEO, Eoghan McCabe, made bold decisions to redefine customer support with AI.
  2. The quality of AI tools matters more than just having features. Intercom's Fin AI agent succeeded through a lot of testing, improving its ability to resolve customer inquiries from 25% to 56%.
  3. Competitors now have to focus on delivering results, not just flashy marketing. Businesses need to educate their customers on how to choose AI products based on effectiveness, not just promises.

Evo 2 Can Design Entire Genomes

Asimov Press • 490 implied HN points • 19 Feb 25
🕹 Technology Computing Genomics AI Biotechnology Research
  1. Evo 2 is a powerful AI model that can design entire genomes and predict harmful genetic mutations quickly. It can help scientists understand genetics better and improve genetic engineering.
  2. Unlike earlier models, Evo 2 can analyze large genetic sequences and understand their relationships, making it easier to see how genes interact in living organisms.
  3. While Evo 2 offers exciting possibilities for bioengineering, there are also concerns about its potential misuse. It's important to handle such powerful technology responsibly to avoid harmful applications.

1/(Effective Altruism)

Philip’s Newsletter • 41 implied HN points • 13 Dec 25
📖 Philosophy Moral Psychology Decision Theory Ethics Moral theory Altruism
  1. Effective Altruism often treats distant and future lives as equally important, but it can also make sense to discount impact by distance and time and prioritize helping those nearest to you.
  2. If many people are giving, focusing on nearby recipients can increase measurable impact and coordination because local help reduces uncertainty and leads to better collective outcomes.
  3. Caring more about people close to you can support social stability and cooperation, and regardless of strategy, giving more generally benefits both recipients and the giver.

Transaction-Oriented Programming

Burning the Midnight Coffee • 64 implied HN points • 15 Nov 25
🕹 Technology Software Architecture Software Design Programming User Experience Error Handling
  1. Transaction-Oriented Programming focuses on breaking down tasks into user-relevant units of work, which can help structure software and make error handling clearer.
  2. Each unit of work should be treated as a transaction, ensuring it is either completed fully or not at all, which can improve reliability in software applications.
  3. Implementing ACID properties (Atomicity, Consistency, Isolation, Durability) helps maintain integrity in software, especially when errors occur, making it easier to manage transactions.

The Bear Cave #260

The Bear Cave • 489 implied HN points • 09 Feb 25
💼 Business Corporate Governance Market Analysis Executive Changes Finance Investing
  1. New activist reports have revealed serious allegations against several companies, including Applied Optoelectronics and GeneDx Holdings, suggesting they may be involved in fraud and misleading practices.
  2. There were significant executive resignations this week from companies like Match Group and Digital Turbine, indicating possible instability within these businesses.
  3. The SEC is changing how it conducts investigations, which may slow down enforcement actions, showing a shift in regulatory approach.

What I Learned This Week #3

Eventually Consistent • 59 implied HN points • 09 Jun 24
🕹 Technology Data Models Edge Computing
  1. Data models are crucial and should be chosen based on relationships among data elements and required access patterns. Graph modeling can be beneficial for many-to-many relationships, while documents work better for one-to-many relationships. Modeling affects performance.
  2. Memory access patterns significantly impact computation time by influencing caching behavior. The chosen pattern determines cache hits/misses and the level from which data is retrieved.
  3. In edge computing, while databases like Postgres rely on raw TCP sockets, WebSockets are preferred for security reasons. WebSockets provide similar benefits while maintaining secure and standardized communication channels.

Gateways to the Cosmos: From Gigantic Spaceports to Unconventional Methods of Reaching Space

Space Ambition • 419 implied HN points • 01 Sep 23
🕹 Technology Satellite Technology Space Exploration Innovation Aerospace
  1. There are many active launch sites around the world, with a total of 66 launch sites identified, including 46 currently operational. These sites are crucial for space exploration and are usually equipped with necessary facilities.
  2. The rise of private companies is changing how rockets are launched. Smaller rockets and satellite launches are becoming more common, leading to the creation of smaller spaceports tailored to these needs.
  3. Some countries are considering building spaceports far from home due to advantageous geography or legal reasons. Launching rockets closer to the equator, for example, can make the process more efficient.

Foundations

Venture Prose • 419 implied HN points • 04 Sep 23
💼 Business Success Work ethic Leadership Productivity Entrepreneurship
  1. Success is about making people around you happy, including employees and customers, while also ensuring profitability for sustainability.
  2. Having a healthy balance is crucial; success should not drain all your energy, you must prioritize maintaining your physical and mental well-being to last in the long run.
  3. Happiness and fulfillment come from connecting with your inner self and surrounding yourself with the right people who share your aspirations and provide support.

Dead Internet Confirmed: It's agents, trolls and clankers all the way down

The Corbett Report • 37 implied HN points • 14 Dec 25
🕹 Technology Online community Social media AI Cybersecurity Disinformation Surveillance
  1. Much of what people see online is created or amplified by bots, foreign agents, and automated systems. So you often can’t trust that you’re talking to a real person.
  2. AI-generated content and organized trolls have degraded online discussion, spreading rage-bait and misinformation that now influences real-world behavior.
  3. You can reduce exposure by avoiding big platforms, using tools like RSS, and joining smaller communities, but the real remedy is rebuilding genuine human connection offline.

Bootstrapping Stretch: 'from robot to revenue to many robots'

Robots & Startups • 59 implied HN points • 09 Jun 24
🕹 Technology AI Conferences Robotics Manufacturing Drones
  1. Hello Robot has successfully grown their Stretch robot platform through bootstrapping, highlighting the benefits of incorporating customer feedback in design iterations.
  2. Hello Robot's Stretch robot has won the IEEE Award for Technology in the Service of Society, recognizing its potential to benefit humankind.
  3. The development of Stretch 3 by Hello Robot signifies a milestone in incorporating three years of customer feedback to create an improved robot for researchers, educators, and explorers.

The Donkey Enterprise

The Greek Analyst • 279 implied HN points • 23 Dec 23
💼 Business Economy Startups Investments Entrepreneurship Tech
  1. Successful businesses can thrive by embodying the traits of a 'Donkey Enterprise' - prioritizing self-preservation, building long-term institutional memory, fostering curiosity, focusing on strong foundations, valuing hard work, and maintaining a clear focus.
  2. Greece has made significant progress in digitization, economy, investments, tech startups, education, and R&D, demonstrating growth in various sectors and receiving international recognition.
  3. Greek individuals and companies have achieved notable success in various fields, such as winning international competitions, impacting AI technology, and contributing to the economy through acquisitions and advancements.

Fosun’s Green Valley Deal: The Risk Isn’t Just Whether GV-971 Works

Pekingnology • 33 implied HN points • 29 Dec 25
💼 Business Investor Relations Regulation Pharmaceuticals M&A Clinical Trials
  1. The market selloff reflects not just scientific doubt about GV-971 but major reputational and regulatory risk tied to Green Valley’s history.
  2. Green Valley has a long record of marketing and compliance scandals — including unlawful advertising, forged promotional materials, bribery, revoked approvals — and GV-971’s broader efficacy claims rest on limited and contested evidence.
  3. Key background on Green Valley’s past was largely missing from Fosun’s disclosure and much international coverage, which matters because the deal and the drug’s future still depend on regulatory approval and confirmatory clinical data.

Attitude: The Secret Ingredient in Software Engineering and Beyond

Mindful Matrix • 219 implied HN points • 29 Jan 24
🕹 Technology Growth mindset Feedback Collaboration Software Engineering Continuous Learning
  1. Having a growth mindset is essential in software engineering and life. Viewing challenges as opportunities for growth helps in overcoming obstacles and achieving success.
  2. Failure should be seen as a learning experience. Embracing mistakes, analyzing them, and using them as lessons leads to resilience and growth.
  3. Receiving feedback with an open mind and using it as a tool for improvement contributes to rapid skill development and fosters a collaborative work environment.

Freelancers - what your ideal client looks like

The Open Source Expert • 39 implied HN points • 04 Jul 24
💼 Business Client Management Freelancing Professionalism Contracts Marketing
  1. A great client has done their research on you and knows your skills. This means they understand what you offer and how you can help them.
  2. Good clients are open about money. They discuss budgets clearly and have reasonable expectations for what they can afford.
  3. Respect is key in a client relationship. A good client values your work and understands that your rates reflect the quality you provide.

Hedging Inflation with Real Assets

In My Tribe • 622 implied HN points • 12 Dec 24
💰 Finance Investments Inflation Real Estate Bonds Commodities
  1. Investing in real assets like real estate, gold, and commodities can help protect against inflation. These assets are expected to appreciate more when inflation rises.
  2. Understanding profitability is key when investing. It combines rental income, appreciation, and interest rates to determine if an investment is worth it.
  3. Inflation-indexed bonds (like i-bonds) can be a good hedge but have limits on how much you can buy. They provide some safety against inflation, even though their performance can vary.

I wish I started doing this on day 0 of my career as an engineer

High Growth Engineer • 1574 implied HN points • 18 Feb 24
💼 Business Planning Productivity Career development Software Engineering Time management
  1. Planning is crucial to avoid feeling unproductive and getting pulled in different directions throughout the day.
  2. By planning your day, you focus on what's important and maintain control over your daily tasks.
  3. Even a simple daily plan of one main goal can significantly improve your productivity and time management.

UFO50, the Only Game You'll Ever Need

The Bottom Feeder • 727 implied HN points • 01 Nov 24
🕹 Technology Video Games Game design Indie games Market Trends Gaming Culture
  1. UFO50 is a unique collection of 50 smaller games, each designed to be completed in just a few hours. This makes it easy to enjoy different game styles without a huge time commitment.
  2. The games in UFO50 showcase clever design ideas that keep gameplay fresh and interesting. Even if one game doesn't appeal to you, you can find multiple others that will.
  3. Making short games like those in UFO50 can be a challenge in the market, but they provide satisfying experiences for players who might not have the time for longer games.

Demystifying secure NFS

Blog System/5 • 744 implied HN points • 04 Nov 24
🕹 Technology Security Systems Software Networking
  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.

Good Luck/Bad Luck. Good Design/Bad Design

Sunday Letters • 99 implied HN points • 28 Apr 24
🕹 Technology Software Design Engineering User Experience Coding Practices Project management
  1. Software can be easy to create but hard to maintain. It's important for engineers to think about how their choices today will affect the future.
  2. Using simple designs and clear roles in a project can help avoid complicated problems later. Teams should focus on making changes quickly and smartly.
  3. Sometimes, the best solution is to remove unnecessary parts instead of adding more. If something isn't needed right now, it's better to not include it.