The best Hacker News stories from Show from the past day
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Show HN: Forty.News – Daily news, but on a 40-year delay
This started as a reaction to a conversational trope. Despite being a tranquil place, even conversations at my yoga studio often start with, "Can you believe what's going on right now?" with that angry/scared undertone.<p>I'm a news avoider, so I usually feel some smug self-satisfaction in those instances, but I wondered if there was a way to satisfy the urge to doomscroll without the anxiety.<p>My hypothesis: Apply a 40-year latency buffer. You get the intellectual stimulation of "Big Events" without the fog of war, because you know the world didn't end.<p>40 years creates a mirror between the Reagan Era and today. The parallels include celebrity populism, Cold War tensions (Soviets vs. Russia), and inflation economics.<p>The system ingests raw newspaper scans and uses a multi-step LLM pipeline to generate the daily edition:<p>OCR & Ingestion: Converts raw pixels to text.<p>Scoring: Grades events on metrics like Dramatic Irony and Name Recognition to surface stories that are interesting with hindsight. For example, a dry business blurb about Steve Jobs leaving Apple scores highly because the future context creates a narrative arc.<p>Objective Fact Extraction: Extracts a list of discrete, verifiable facts from the raw text.<p>Generation: Uses those extracted facts as the ground truth to write new headlines and story summaries.<p>I expected a zen experience. Instead, I got an entertaining docudrama. Historical events are surprisingly compelling when serialized over weeks.<p>For example, on Oct 7, 1985, Palestinian hijackers took over the cruise ship Achille Lauro. Reading this on a delay in 2025, the story unfolded over weeks: first they threw an American in a wheelchair overboard, then US fighter jets forced the escape plane to land, leading to a military standoff between US Navy SEALs and the Italian Air Force. Unbelievably, the US backed down, but the later diplomatic fallout led the Italian Prime Minister to resign.<p>It hits the dopamine receptors of the news cycle, but with the comfort of a known outcome.<p>Stack: React, Node.js (Caskada for the LLM pipeline orchestration), Gemini for OCR/Scoring.<p>Link: <a href="https://forty.news" rel="nofollow">https://forty.news</a> (No signup required, it's only if you want the stories emailed to you daily/weekly)
Show HN: Supabase-Test – Fast Isolated Postgres DBs for Testing Supabase RLS
Hi HN — we've built a testing framework for Supabase that spins up fast,
isolated Postgres databases for each test case. It’s designed to make RLS
policies easy to validate with real database state, without global test
fixtures or mock auth.<p>Features:
- Instant isolated Postgres DBs per test
- Automatic rollback after each test
- RLS-native testing with `.setContext()` for auth simulation
- Flexible seeding (SQL, CSV, JSON, JS)
- Works with Jest, Mocha, and any async test runner
- CI-friendly (runs cleanly in GitHub Actions)<p>We also published example projects and a free set of tutorials:
<a href="https://launchql.com/learn/supabase" rel="nofollow">https://launchql.com/learn/supabase</a><p>Package:
<a href="https://www.npmjs.com/package/supabase-test" rel="nofollow">https://www.npmjs.com/package/supabase-test</a><p>Source + full test suite:
<a href="https://github.com/launchql/supabase-test-suite" rel="nofollow">https://github.com/launchql/supabase-test-suite</a><p>Happy to answer questions and get feedback, cheers :)
Show HN: Search London StreetView panoramas by text
Inspired by All Text in NYC (<a href="https://alltext.nyc" rel="nofollow">https://alltext.nyc</a>) by Yufeng Zhang I thought I would replicate something similar for London.<p>A searchable tool that lets you explore text captured across Google Street View imagery in London; shop signs, posters, graffiti, van numbers etc
Show HN: MCP Traffic Analysis Tool
Show HN: A game where you invest into startups from history
Show HN: 32V TENS device from built from scratch under $100
Show HN: 32V TENS device from built from scratch under $100
Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker
Hi HN, creator of Wealthfolio here.<p>A year ago, I posted the first version. Since then, the app has matured significantly with two major updates:<p>1. Multi-platform Support:
Now available on Mobile (iOS), Desktop (macOS, Windows, Linux), and as a Self-hosted Docker image.
(Android coming soon).<p>2. Addons System:
We added explicit support for extensions so you can hack around, vibe code your own integrations, and customize the app to fit your needs.<p>The core philosophy remains the same: Always private, transparent, and open source.
Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker
Hi HN, creator of Wealthfolio here.<p>A year ago, I posted the first version. Since then, the app has matured significantly with two major updates:<p>1. Multi-platform Support:
Now available on Mobile (iOS), Desktop (macOS, Windows, Linux), and as a Self-hosted Docker image.
(Android coming soon).<p>2. Addons System:
We added explicit support for extensions so you can hack around, vibe code your own integrations, and customize the app to fit your needs.<p>The core philosophy remains the same: Always private, transparent, and open source.
Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker
Hi HN, creator of Wealthfolio here.<p>A year ago, I posted the first version. Since then, the app has matured significantly with two major updates:<p>1. Multi-platform Support:
Now available on Mobile (iOS), Desktop (macOS, Windows, Linux), and as a Self-hosted Docker image.
(Android coming soon).<p>2. Addons System:
We added explicit support for extensions so you can hack around, vibe code your own integrations, and customize the app to fit your needs.<p>The core philosophy remains the same: Always private, transparent, and open source.
Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker
Hi HN, creator of Wealthfolio here.<p>A year ago, I posted the first version. Since then, the app has matured significantly with two major updates:<p>1. Multi-platform Support:
Now available on Mobile (iOS), Desktop (macOS, Windows, Linux), and as a Self-hosted Docker image.
(Android coming soon).<p>2. Addons System:
We added explicit support for extensions so you can hack around, vibe code your own integrations, and customize the app to fit your needs.<p>The core philosophy remains the same: Always private, transparent, and open source.
Show HN: An A2A-compatible, open-source framework for multi-agent networks
Show HN: DNS Benchmark Tool – Compare and monitor resolvers
I built a CLI to benchmark DNS resolvers after discovering DNS was adding 300ms to my API requests.<p>v0.3.0 just released with new features:
compare: Test single domain across all resolvers
top: Rank resolvers by latency/reliability/balanced
monitor: Continuous tracking with threshold alerts<p>1,400+ downloads in first week.<p>Quick start:
pip install dns-benchmark-tool
dns-benchmark compare --domain google.com<p>CLI stays free forever. Hosted version (multi-region, historical tracking, alerts) coming Q1 2026.<p>GitHub: <a href="https://github.com/frankovo/dns-benchmark-tool" rel="nofollow">https://github.com/frankovo/dns-benchmark-tool</a>
Feedback: <a href="https://forms.gle/BJBiyBFvRJHskyR57" rel="nofollow">https://forms.gle/BJBiyBFvRJHskyR57</a><p>Built with Python + dnspython. Open to questions and feedback!
Show HN: Awesome J2ME
An awesome list about Java platform Micro edition(J2ME). Documentation, academic papers, tutorials, communities, IDEs, SDKs, emulators, apps, video games. J2ME is a Java specification designed for old keypad phones and PDAs. MIDP, which is built upon CLDC, is used to create Midlets, which have `.jad` or `.jar` extension, and run on platforms like old keypad phones, Symbian and PDAs. MIDP is supported till Java ME SDK 3.4.
Show HN: Awesome J2ME
An awesome list about Java platform Micro edition(J2ME). Documentation, academic papers, tutorials, communities, IDEs, SDKs, emulators, apps, video games. J2ME is a Java specification designed for old keypad phones and PDAs. MIDP, which is built upon CLDC, is used to create Midlets, which have `.jad` or `.jar` extension, and run on platforms like old keypad phones, Symbian and PDAs. MIDP is supported till Java ME SDK 3.4.
Show HN: Awesome J2ME
An awesome list about Java platform Micro edition(J2ME). Documentation, academic papers, tutorials, communities, IDEs, SDKs, emulators, apps, video games. J2ME is a Java specification designed for old keypad phones and PDAs. MIDP, which is built upon CLDC, is used to create Midlets, which have `.jad` or `.jar` extension, and run on platforms like old keypad phones, Symbian and PDAs. MIDP is supported till Java ME SDK 3.4.
Show HN: My hobby OS that runs Minecraft
Show HN: My hobby OS that runs Minecraft
Show HN: My hobby OS that runs Minecraft
Show HN: My hobby OS that runs Minecraft