How are you, hacker? 🪐Want to know what's trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. ## Introducing Agentic Postgres, the Database for AI Agents By @tigerdata [ 4 Min read ] Tiger Data launches Agentic Postgres, the database built for agents. Instant database forks, native vector + BM25 search, MCP for AI agents. Start Free. Read More. System Design in a Nutshell By @amanila [ 59 Min read ] Know system design fundamentals: UX components, databases, scaling strategies, security & compliance. Essential guide for developers & system design interviews. Read More. Inside X-VPN’s Verification Process: Internal Review of Blind In/On‑Path Risks By @sandramitchell [ 3 Min read ] X-VPN’s internal review finds no user data leaks in Blind In/On-Path tests; Android routing behavior, not VPN flaws, caused observed signals. Read More. Weekly AI Startup Funding: October 12-19, 2025 By @aifundingtracker [ 9 Min read ] AI startups raised over $2.4 billion this week across enterprise infrastructure, healthcare innovation, and fintech. Read More. Best AI Visibility Tools for 2025 By @erikronson [ 8 Min read ] An exhaustive guide to AI visibility tools written by someone who has tried all of them. Read More. The Complete Guide to Mega Productivity With Perplexity Comet (100 Shortcuts + 40 Prompts) By @sidsaladi [ 19 Min read ] Perplexity’s Comet browser changed how I work—AI-powered, distraction-free, and built for productivity, not ad clicks. Read More. Tool Calling for Local AI Agents in C# By @lcarrere [ 12 Min read ] LM-Kit .NET SDK now supports tool calling for building AI agents in C#. Read More. Can ChatGPT Outperform the Market? Week 10 By @nathanbsmith729 [ 4 Min read ] New high of 32%… Read More. AI Bubble and the Free Market By @id [ 5 Min read ] The dominance of a few large firms exemplifies an oligopolistic market structure. These companies have significant market power, allowing them to set prices Read More. ChatGPT Is Not Just a Tool; It's a Mirror for How You Think By @ujutheanalyst [ 3 Min read ] ChatGPT isn’t magic it’s a mirror for how we think. I have learned that better prompts aren’t about hacks, they are about precision,patience and fine tuning Read More. Stop the Slop. Start Coding Smarter with AI By @@javar97 [ 10 Min read ] A 7-step checklist for developers to use AI tools effectively—without creating low-quality “slop.” Build, test, and scale with discipline. Read More. Grokipedia: The Coming War with Wikipedia for the World's Knowledge By @nofacetoolsai [ 4 Min read ] Discover Grokipedia; Elon Musk's bold challenge to Wikipedia. Explore how this open-source knowledge repository could reshape the future of information and AI. Read More. The Day the Cloud Cracked: AWS Outage Exposes Fragility of Centralized Internet By @ishanpandey [ 3 Min read ] AWS crashed for 15 hours taking down Snapchat, Fortnite and 2,500+ companies. 11M users affected. What went wrong. Read More. How AI is Disrupting the Idea of Creativity By @OurAI [ 10 Min read ] The capabilities of new AI models encourage us to reconsider what it takes for a work to be creative. Read More. GitHub Rolls Out Open-Source MCP Server to Expand Copilot’s Reach By @ainativedev [ 3 Min read ] GitHub’s new MCP server empowers Copilot to automate dev workflows with real-time repo context - marking a leap from code suggestions to workflow actions. Read More. Why You Should Stop Writing Tests By @alqemian [ 16 Min read ] A weblog about a different approach to automated testing by a senior dev who does not like writing tests. Read More. The Lost Art of Web3 Marketing By @hackmarketing [ 6 Min read ] Explore why Web3 marketing feels like a lost art—and how projects can move beyond hype to build real, sustainable growth, community, and clarity in messaging. Read More. New Google AI Studio Build: A FREE AI App Builder By @proflead [ 2 Min read ] Google AI Studio just rolled out a big update. It basically turns the platform into a free AI app builder. Read More. The Moral Cost of the Growth Hack By @hacker4949449 [ 6 Min read ] Finding the balance between growth and ethics is hard. Here’s how designers can create user journeys that drive results without crossing the line. Read More. Weekly AI Startup Funding: October 5-11, 2025 By @aifundingtracker [ 8 Min read ] AI startups raised over $4.1 billion this week, with watershed moments in open-source AI, legal technology, and energy infrastructure. Read More. 🧑‍💻 What happened in your world this week? It's been said that writing can help consolidate technical knowledge, establish credibility, and contribute to emerging community standards. Feeling stuck? We got you covered ⬇️⬇️⬇️ ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it. See you on Planet Internet! With love, The HackerNoon Team ✌️ How are you, hacker? 🪐Want to know what's trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. ## Introducing Agentic Postgres, the Database for AI Agents By @tigerdata [ 4 Min read ] Tiger Data launches Agentic Postgres, the database built for agents. Instant database forks, native vector + BM25 search, MCP for AI agents. Start Free. Read More. System Design in a Nutshell By @amanila [ 59 Min read ] Know system design fundamentals: UX components, databases, scaling strategies, security & compliance. Essential guide for developers & system design interviews. Read More. Inside X-VPN’s Verification Process: Internal Review of Blind In/On‑Path Risks By @sandramitchell [ 3 Min read ] X-VPN’s internal review finds no user data leaks in Blind In/On-Path tests; Android routing behavior, not VPN flaws, caused observed signals. Read More. Weekly AI Startup Funding: October 12-19, 2025 By @aifundingtracker [ 9 Min read ] AI startups raised over $2.4 billion this week across enterprise infrastructure, healthcare innovation, and fintech. Read More. Best AI Visibility Tools for 2025 By @erikronson [ 8 Min read ] An exhaustive guide to AI visibility tools written by someone who has tried all of them. Read More. The Complete Guide to Mega Productivity With Perplexity Comet (100 Shortcuts + 40 Prompts) By @sidsaladi [ 19 Min read ] Perplexity’s Comet browser changed how I work—AI-powered, distraction-free, and built for productivity, not ad clicks. Read More. Tool Calling for Local AI Agents in C# By @lcarrere [ 12 Min read ] LM-Kit .NET SDK now supports tool calling for building AI agents in C#. Read More. Can ChatGPT Outperform the Market? Week 10 By @nathanbsmith729 [ 4 Min read ] New high of 32%… Read More. AI Bubble and the Free Market By @id [ 5 Min read ] The dominance of a few large firms exemplifies an oligopolistic market structure. These companies have significant market power, allowing them to set prices Read More. ChatGPT Is Not Just a Tool; It's a Mirror for How You Think By @ujutheanalyst [ 3 Min read ] ChatGPT isn’t magic it’s a mirror for how we think. I have learned that better prompts aren’t about hacks, they are about precision,patience and fine tuning Read More. Stop the Slop. Start Coding Smarter with AI By @@javar97 [ 10 Min read ] A 7-step checklist for developers to use AI tools effectively—without creating low-quality “slop.” Build, test, and scale with discipline. Read More. Grokipedia: The Coming War with Wikipedia for the World's Knowledge By @nofacetoolsai [ 4 Min read ] Discover Grokipedia; Elon Musk's bold challenge to Wikipedia. Explore how this open-source knowledge repository could reshape the future of information and AI. Read More. The Day the Cloud Cracked: AWS Outage Exposes Fragility of Centralized Internet By @ishanpandey [ 3 Min read ] AWS crashed for 15 hours taking down Snapchat, Fortnite and 2,500+ companies. 11M users affected. What went wrong. Read More. How AI is Disrupting the Idea of Creativity By @OurAI [ 10 Min read ] The capabilities of new AI models encourage us to reconsider what it takes for a work to be creative. Read More. GitHub Rolls Out Open-Source MCP Server to Expand Copilot’s Reach By @ainativedev [ 3 Min read ] GitHub’s new MCP server empowers Copilot to automate dev workflows with real-time repo context - marking a leap from code suggestions to workflow actions. Read More. Why You Should Stop Writing Tests By @alqemian [ 16 Min read ] A weblog about a different approach to automated testing by a senior dev who does not like writing tests. Read More. The Lost Art of Web3 Marketing By @hackmarketing [ 6 Min read ] Explore why Web3 marketing feels like a lost art—and how projects can move beyond hype to build real, sustainable growth, community, and clarity in messaging. Read More. New Google AI Studio Build: A FREE AI App Builder By @proflead [ 2 Min read ] Google AI Studio just rolled out a big update. It basically turns the platform into a free AI app builder. Read More. The Moral Cost of the Growth Hack By @hacker4949449 [ 6 Min read ] Finding the balance between growth and ethics is hard. Here’s how designers can create user journeys that drive results without crossing the line. Read More. Weekly AI Startup Funding: October 5-11, 2025 By @aifundingtracker [ 8 Min read ] AI startups raised over $4.1 billion this week, with watershed moments in open-source AI, legal technology, and energy infrastructure. Read More. 🧑‍💻 What happened in your world this week? It's been said that writing can help consolidate technical knowledge, establish credibility, and contribute to emerging community standards. Feeling stuck? We got you covered ⬇️⬇️⬇️ ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it. See you on Planet Internet! With love, The HackerNoon Team ✌️