The HackerNoon Newsletter: How to Enter the Proof of Usefulness (PoU) Hackathon (1/23/2026)

Written by hackernoonnewsletter | Published 2026/01/23
Tech Story Tags: hackernoon-newsletter | noonification | latest-tect-stories | artificial-intelligence | proof-of-usefulness-hackathon | java | angular

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How are you, hacker?


🪐 What’s happening in tech today, January 23, 2026?


The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Apple launched the Macintosh Computer in 1984, President Nixon Announced End to the grueling Vietnam War in 1973, HackerNoon published its first story! in 2016, and we present you with these top quality stories. From How to Add the AWS WAF CAPTCHA to an Angular Application to How to Enter the Proof of Usefulness (PoU) Hackathon, let’s dive right in.

The Game AI Problem Computers Were Never Built to Solve


By @aimodels44 [ 7 Min read ] An explainer on why brute-force AI fails at grand strategy games, and how hybrid LLM architectures enable long-horizon strategic reasoning. Read More.

How to Enter the Proof of Usefulness (PoU) Hackathon


By @proofofusefulness [ 5 Min read ] No pitch decks. No mockups. Just code that works. Here is your step-by-step guide to entering HackerNoons $150K Proof of Usefulness Hackathon. Read More.

How to Make Your Legacy Exception-Throwing Code Compatible With Lambdas


By @nfrankel [ 6 Min read ] In this post, I tackled the issue of integrating checked exceptions with lambdas in Java. Read More.

How to Add the AWS WAF CAPTCHA to an Angular Application


By @rodrigokamada [ 6 Min read ] In this article, we will create a WEB application using the latest version of Angular and integrate the AWS WAF CAPTCHA challenge to protect against bots. Read More.


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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 ✌️



Written by hackernoonnewsletter | Get Hacker Noon's top homepage stories delivered to your inbox every day at noon
Published by HackerNoon on 2026/01/23