Nikola Barac

One should approach adding components in #SystemDesign like adding salt to a dish. You can always add another component in the future, but once you add it, it's very hard to remove it. So, avoid using that design pattern unless you see one or have a clear future use-case for it, avoid adding that table of constants in your DB if you can do without it.

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**ATTENTION PRODUCT DEVELOPMENT TEAMS**   With Gravatar’s new REST API, developers can now significantly enhance user experiences on their platforms.   Gravatar from Automattic is short for Globally Recognized Avatar that powers user profiles on platforms like ChatGPT, GitHub, Slack, and many more.   With Gravatar, developers can now enrich customer profiles, customise onboarding processes, and enhance user experiences.   The best part? It’s completely free to use.   Imagine being able to offer users the ability to own their digital identity using a .link domain name as their username – well now you can.   Through our partnership with Gravatar, Nova Registry and .link actively support platforms that are building the open web - and that means being part of the open-source tech stack making the web a more accessible place.   Making connections, sharing links, and simplifying everyones digital presence.   To find out more about the Gravatar REST API go here: https://docs.gravatar.com/   We ❤️ innovation & partnerships!!

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Can AI End World Hunger??? Remember Western Union? Or standing in long lines to wire money abroad? And foreign exchange? It required ninja-like skills just to navigate. Online payments, especially international ones, were a nightmare in the 90s. Then PayPal arrived on the scene and everything changed! No more hefty fees and a cocktail of charges. No more waiting. With just an email address, your money was transferred pronto. That's the power of technology. Today's kids won't even know what it means to stand in line to send money. And now, think about what we're doing today: sending money with a tap of a phone, earning money through our phones, and so much more. But imagine what's next, now that AI is entering fintech. We could eradicate fraud, democratize wealth management, instill a savings culture, and empower entire populations to be more financially savvy. We could ensure transparency in donations and charity, directing help precisely where it's needed. We could even aim to eradicate hunger and poverty. With ongoing advancements in fintech, the possibilities are truly limitless. #ai #fintech #worldhunger #eradicatePoverty

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How to turn your website loading from fast to instant? ⚡ With new Speculation Rules API you can achieve near-instant page load thanks to preloading next navigation page by providing predictive hints to the browser.   This new updated API is super flexible allow you to choose between prefetching or prerendering. A few remarks about this update:  👉 super flexible and easy to use 👉 currently supported in Chromium-based browsers (Chrome, Edge, and Opera) 👉 very easy to debug with native Dev Tools support  👉 have already native WordPress plugin available - Speculative Loading https://lnkd.in/dmqyfh52 As with great power comes great responsibility there is a couple of nitty-gritties you should be aware: - it's very easy to end with over-speculation that have bandwidth, memory, and CPU costs - heat maps seems to be best way to figure out what to prerender - preloading might affect your analytics, Google Analytics got that covered but be careful if you use any other system - while prefetching on mobile with moderate eagerness the event is triggered on pointerdown (when physical contact is made with the digitizer) Where to start? Barry Pollard did a great overview of all aspects of Speculation Rules API changes (https://lnkd.in/dPfsmpQ5). Once you implement it start with moderate / conservative eagerness and tweak it along the way. Enjoy! #webperf #webperformance

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We just migrated Dub.co's content framework to Content Collections – the perfect drop-in replacement for Contentlayer. Here's how we did it → d.to/collections Why Content Collections: ◆ Zod-powered Schema Validation ◆ Native Fumadocs integration (h/t Fuma Nama) ◆ Compatible with Next.js App Router ◆ Actively maintained by an amazing developer (Sebastian Sdorra)

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Real hard work do real good things! Those boys do incredible planning, organization of work and knowledge based on your own docs and with combination with generative AI that makes things work like a charm. I am using this in many projects and unbeliavable how fast it works and how easier is to use it, better than Notion. Generates my business requirement docs in seconds. Those product deserve only one thing- SUCCESS!! Version 1 is here. Congrats on hard work of Saga team.

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Good lesson from my Senior One. When his company's platform started experiencing growing pains, the tech lead and devs faced challenge. User complaints were rising, page load times were slowing, and their once-stable system seemed to be buckling under the pressure. After having ample discussions, I learned a few things from them about becoming more technical in my career. These insights should help those of you aspiring to excel in a tech role. 1. Revamping Data Management (DB) - Choosing the Right Storage Solutions: We should evaluate when to use relational databases versus NoSQL options, aligning our choices with specific application needs. - Optimized Indexing: We must refine indexing strategies to improve query performance. 2. Enhancing System Performance with Caching To speed up processes, we should introduce smarter path for data retrieval. - Strategic Cache Placement: Determine the optimal use of client-side and server-side caching. - Advanced Caching Methods: Employ write-through and write-back techniques to keep data current. - Distributed Caching : We should integrate tools like Redis to manage frequently accessed data efficiently. 3. Distributing Workloads Effectively We should ensure our system can handle increasing demands without faltering. - Horizontal Scaling: Add more servers to share the load, improving reliability. - Load Balancing Techniques: Implement round-robin and consistent hashing to distribute incoming traffic evenly. 4. Asynchronous Processing By decoupling processes, we should improve system responsiveness and user experience. - Message Queues: Adopt RabbitMQ or similar tools to handle tasks asynchronously, reducing wait times. - Event-Driven Architecture: Shift to a system where components react to events, enhancing scalability. 5. Scaling Reads and Writes We must optimize data flow to handle more users without compromising performance. - Read Optimization: Deploy read replicas to manage increased read traffic. - Write Management: Address challenges in write operations through effective data partitioning. 7. Designing Robust APIs Our APIs should become more efficient and easier to maintain. - API Styles: Choose between REST and GraphQL based on the use case. - Efficient Data Handling: Implement pagination and filtering for better management. - Version Control: Manage API versions to ensure smooth transitions. 8. Enhancing Search Capabilities - Effective Indexing: Improve search speed with well-designed indexes. - Advanced Search Engines: Integrate tools like ElasticSearch for powerful search functionality. 9. Monitoring and Securing the System We should maintain an eye on system performance and security. - Metrics and Monitoring: Use tools like Prometheus and Grafana to visualize performance data. - Distributed Tracing: Implement OpenTelemetry to trace and debug issues across services. #TechnologyLeadership #SystemOptimization #TechJourney #EngineeringExcellence

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If you haven't messed with Google's NotebookLM (https://lnkd.in/eXVY9kev) , you are missing out. I took the ClickHouse whitepaper and uploaded it. It creates a study guide, quiz, faq, you can ask questions against it and it also suggests questions to ask. The coolest part is it creates a podcast which I've linked below. So very cool. You can upload many docs at once and they say they don't keep any of this. (it is google so... I wouldn't go upload my taxes or anything to them..) (cc Tanya Bragin for when you are interviewing candidates. lol ) === ClickHouse: Lightning Fast Analytics for Everyone - Study Guide Quiz Answer the following questions in 2-3 sentences each. What is ClickHouse and what are its key features? How does ClickHouse handle large datasets and high ingestion rates? What are the three main categories of table engines in ClickHouse? === ClickHouse FAQ 1. What is ClickHouse? ClickHouse is an open-source, column-oriented OLAP database management system (DBMS) developed by ClickHouse, Inc. It's known for its exceptional performance in processing analytical queries on large datasets, often exceeding the speed of traditional database systems. 2. What are the key features of ClickHouse? Column-oriented Storage: ClickHouse stores data by columns instead of rows, reducing I/O and speeding up queries that only need specific columns. Data Compression: It employs efficient compression algorithms (LZ4, Gorilla, etc.) to minimize storage space and I/O costs. Data Pruning: Techniques like primary keys, projections, and skipping indexes help ClickHouse avoid scanning unnecessary data. === Podcast: https://lnkd.in/eevvXaMQ

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"Tech folks are bad at sales and marketing" - most of the thought leaders I wanted to use the above quote in my defence to talk about a product we are building for quite sometime now. We are doing lot of tech deep dive into its core tech and so far had around 4 "aha" moments and rebuilt it to make it better. Coming back to my first quote, I am interested to hear from you as what your thoughts on it. I know for the fact that there are lots of competing products in space and I also believe that the pie is big enough for multiple players! We have already integrated this with a mobile asset management app and is working well enough for them to give us a testimonial. We are currently showing demos (with their data) to one of India's oldest and most respected conglomerates, known for its diverse range of products and services which was founded over a century ago. (Sorry I don't have the permission to tell their name yet!). And, it looks positive so far! Without any further ado, Here is the landing page for our product VIDURA. http://vidurabot.com/ I am also planning to write a series of posts about what we are doing different here along with the improvements we were able to achieve with those techniques. (Again, all tech stuff) - If you are interested to know more in this regard, please ping me / reply to this thread. - If you would like to play around with the demo instance, please reply to this thread. - If you really want to be critical about this post, please ping me in private. 😀 - If you can give me some suggestion on how to better position it / market it / sell it, I will all be ears.

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In Search and Rescue we have a saying "slow is smooth and smooth is fast". The same mindset can be applied to #SoftwareEngineering. Have urgency and bias towards action, but don't rush. Find the root cause. Fix it once. Fix it right. An extra few cycles now will make you faster in the long run.

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Career credit: Thomas Knoll I met Thomas at Zappos back in 2010. He was a founder who had started a couple of companies and was working at Zappos as a community architect. He mentored me and pointed me in the direction of startups and entrepreneurship. Some backstory: Startup weekends and hackathons were my gateway drug to entrepreneurship. And it all started at Zappos. The company had a budget for attending conferences, but big tech conferences like Dreamforce or Google I/O are expensive, costing thousands of dollars just for tickets, plus housing and other expenses. Most companies offer this as an employee benefit, allowing a tech worker or developer to attend one conference per year of their choice. I gamed the system a bit by attending 3-4 low-cost hackathons a year, usually in cities like San Francisco and New York, instead of one big conference. This allowed me to stretch the budget and do things that were more interesting and exciting to me. I started bringing other Zappos employees along to form teams and represent the company. Thomas Knoll was one of them, and he connected me with companies like Twilio and Sendgrid that were doing early hackathon stuff in the early 2010s. Later, when we had our first startup weekend in Las Vegas, I joined a team with Thomas, and we ended up winning the whole damn thing. It was really fun because the judges included Tony Hsieh from Zappos and Tom Anderson from MySpace, who nobody had seen for five or six years, but somehow Tony got him to be a judge at the startup weekend. Yes, I got to meet MySpace Tom! Thomas was super influential at Zappos and showed that not only was he encouraging, but he also put his own skin in the game. Even though he was a non-technical entrepreneur, he jumped in and did as much as any of the developers on any of those teams. He was awesome to work with. Thomas brings an unstoppable energy to everything he does, but coupled with empathy and understanding. From him I learned the value of building great teams, pointing out the problem, and turning them loose. All while Thomas does the grunt work that no one even realizes needs to be done. Thomas and I have been collaborators ever since, and our families are good friends. If anyone is looking for a CEO, entrepreneur, or startup coach, Thomas runs a Self Healing Leadership service called ‘Your Second Call’ — I will leave a link to his site in the comments. Take it from me, he is an awesome person to work with.

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We've all heard about Test-driven Development, but what about Preview-driven Development? The basics of PDD 📸 • Previews can act as tests to ensure quality • Previews can be mini-apps to launch features in controlled environments • Emerge Tools can completely automate the testing of Previews Check out this awesome post on Preview-drive Development by Ryan Brooks & Rikin Marfatia: https://lnkd.in/gQJDBdRc

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Discover how curation is reshaping media buying and driving efficiency in AdTech. Check out this insightful article by Bedrock Platform. 💡 A must-read for anyone navigating the evolving AdTech landscape! #AdTech #MediaBuying #Curation #Innovation

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Making an API document is a pain. Making a beautiful API document is a strong pain. Mintlify solved my pain. 🎯 From the beginning of Podonos, we have built documents on our SDK (https://podonos.com/docs) for connecting AIs to human intelligence. We know how to write documents from experiences, but don't know how to build beautiful document pages. So we used Mintlify as we wrote the first line of SDK code. If you work on #B2B #SaaS #API #SDK, use Mintlify, save time, and make your docs beautiful. No, I am not affiliated with them. No reward from them. Want to show my love on the product ❤️ #Mintlify #Podonos

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🛒 **Exploring the Types of E-Commerce with Redis Solution** 🛒 E-commerce offers a world of opportunities, whether it's B2B, B2C, C2C, or Intra-B. At Redis Solution, we help you navigate the different ways to shop online, ensuring that there’s something for everyone, whether you're a business or a customer. **Types of E-Commerce:** - B2B: Firm's interactions with other businesses - B2C: Firm's interactions with its customers - C2C: Customer's interactions with other customers - Intra-B: Firm's internal processes Discover the future of online shopping with us! 🔗 [Redissolution.com](http://redissolution.com) 📧 [email protected] @RedisSolution #Ecommerce #B2B #B2C #C2C #IntraB #OnlineShopping #RedisSolution

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