The best Hacker News stories from Show from the past day
Latest posts:
Show HN: Play with real quantum physics in your browser
I wanted to make the simplest app to introduce myself and others to quantum computing.<p>Introducing, Schrödinger's Coin. Powered by a simple Hadamard gate[0] on IBM quantum, with this app you can directly interact with a quantum system to experience true randomness.<p>Thoughts? Could you see any use cases for yourself of this? Or, does it inspire any other ideas of yours? Curious what others on HN think!<p>[0] <a href="https://en.wikipedia.org/wiki/Quantum_logic_gate#Hadamard_gate" rel="nofollow">https://en.wikipedia.org/wiki/Quantum_logic_gate#Hadamard_ga...</a>
Show HN: ExpenseOwl – Simple, self-hosted expense tracker
Show HN: ExpenseOwl – Simple, self-hosted expense tracker
Show HN: ExpenseOwl – Simple, self-hosted expense tracker
Show HN: ExpenseOwl – Simple, self-hosted expense tracker
Show HN: ExpenseOwl – Simple, self-hosted expense tracker
Show HN: Transductive regular expressions for text editing
An extension of regular expressions for text editing, with a grep-like command-line tool. If you, like me, struggle with group logic in regular expressions, you might find it useful.<p>I wanted to do this for a very long time. It is more of a sketch or prototype. I'd really appreciate your feedback!
Show HN: Transductive regular expressions for text editing
An extension of regular expressions for text editing, with a grep-like command-line tool. If you, like me, struggle with group logic in regular expressions, you might find it useful.<p>I wanted to do this for a very long time. It is more of a sketch or prototype. I'd really appreciate your feedback!
Show HN: A website that heatmaps your city based on your housing preferences
For the past few months, I've been working on a website that answers two different questions:<p>- Where in my city have the best travel times to all the things and people I care about?<p>- Given a listing, how far is it from all the things and people I care about?<p>Personally this was fueled by my own frustrations when I was apartment hunting in NYC. I was frustrating to have to juggle so many Google Maps tabs when I was evaluating a listing, and it was also annoying to not have full confidence that I was even searching in the right places.<p>I wanted to be close to work, a Trader Joe's, and a major park. Given that public transportation networks can sometimes make close things hard to get to and far things easy to get to, it's not always obvious whether a neighborhood actually even fits my criteria or not!<p>The overarching goal of theretowhere.com is to allow you to make more informed moving decisions while also making things more convenient than they are today.<p><a href="https://ibb.co/pBsX2HjN" rel="nofollow">https://ibb.co/pBsX2HjN</a><p>It can generate detailed travel time breakdowns for individual listings and addresses, making it easier to determine whether a listing is worth applying for without juggling Google Maps tabs.
This is great for questions like “How far is this apartment from my friends, work and dancing gyms?”<p><a href="https://ibb.co/mVBjwPrJ" rel="nofollow">https://ibb.co/mVBjwPrJ</a><p>It also has the powerful ability to heatmap a city based on which parts of it are close or not to the people and places you care about.
This is great for questions like “Where in the city would I be reasonably close to work, friends and a woodworking studio?”<p><a href="https://ibb.co/vCynPSRK" rel="nofollow">https://ibb.co/vCynPSRK</a><p>You can add these heatmaps to sites like Zillow and Streeteasy to make things super convenient (this was very fun to make).<p>The main thing that's on my mind is whether this is useful or not. Like, is this something you would actually use?
I also have other ideas I'd like to eventually intergrate into this (crime heatmaps, noise heatmaps, etc)
Show HN: A website that heatmaps your city based on your housing preferences
For the past few months, I've been working on a website that answers two different questions:<p>- Where in my city have the best travel times to all the things and people I care about?<p>- Given a listing, how far is it from all the things and people I care about?<p>Personally this was fueled by my own frustrations when I was apartment hunting in NYC. I was frustrating to have to juggle so many Google Maps tabs when I was evaluating a listing, and it was also annoying to not have full confidence that I was even searching in the right places.<p>I wanted to be close to work, a Trader Joe's, and a major park. Given that public transportation networks can sometimes make close things hard to get to and far things easy to get to, it's not always obvious whether a neighborhood actually even fits my criteria or not!<p>The overarching goal of theretowhere.com is to allow you to make more informed moving decisions while also making things more convenient than they are today.<p><a href="https://ibb.co/pBsX2HjN" rel="nofollow">https://ibb.co/pBsX2HjN</a><p>It can generate detailed travel time breakdowns for individual listings and addresses, making it easier to determine whether a listing is worth applying for without juggling Google Maps tabs.
This is great for questions like “How far is this apartment from my friends, work and dancing gyms?”<p><a href="https://ibb.co/mVBjwPrJ" rel="nofollow">https://ibb.co/mVBjwPrJ</a><p>It also has the powerful ability to heatmap a city based on which parts of it are close or not to the people and places you care about.
This is great for questions like “Where in the city would I be reasonably close to work, friends and a woodworking studio?”<p><a href="https://ibb.co/vCynPSRK" rel="nofollow">https://ibb.co/vCynPSRK</a><p>You can add these heatmaps to sites like Zillow and Streeteasy to make things super convenient (this was very fun to make).<p>The main thing that's on my mind is whether this is useful or not. Like, is this something you would actually use?
I also have other ideas I'd like to eventually intergrate into this (crime heatmaps, noise heatmaps, etc)
Show HN: A website that heatmaps your city based on your housing preferences
For the past few months, I've been working on a website that answers two different questions:<p>- Where in my city have the best travel times to all the things and people I care about?<p>- Given a listing, how far is it from all the things and people I care about?<p>Personally this was fueled by my own frustrations when I was apartment hunting in NYC. I was frustrating to have to juggle so many Google Maps tabs when I was evaluating a listing, and it was also annoying to not have full confidence that I was even searching in the right places.<p>I wanted to be close to work, a Trader Joe's, and a major park. Given that public transportation networks can sometimes make close things hard to get to and far things easy to get to, it's not always obvious whether a neighborhood actually even fits my criteria or not!<p>The overarching goal of theretowhere.com is to allow you to make more informed moving decisions while also making things more convenient than they are today.<p><a href="https://ibb.co/pBsX2HjN" rel="nofollow">https://ibb.co/pBsX2HjN</a><p>It can generate detailed travel time breakdowns for individual listings and addresses, making it easier to determine whether a listing is worth applying for without juggling Google Maps tabs.
This is great for questions like “How far is this apartment from my friends, work and dancing gyms?”<p><a href="https://ibb.co/mVBjwPrJ" rel="nofollow">https://ibb.co/mVBjwPrJ</a><p>It also has the powerful ability to heatmap a city based on which parts of it are close or not to the people and places you care about.
This is great for questions like “Where in the city would I be reasonably close to work, friends and a woodworking studio?”<p><a href="https://ibb.co/vCynPSRK" rel="nofollow">https://ibb.co/vCynPSRK</a><p>You can add these heatmaps to sites like Zillow and Streeteasy to make things super convenient (this was very fun to make).<p>The main thing that's on my mind is whether this is useful or not. Like, is this something you would actually use?
I also have other ideas I'd like to eventually intergrate into this (crime heatmaps, noise heatmaps, etc)
Show HN: Heap Explorer
I wrote a little LD_PRELOAD library that makes it easy to inspect and interact with a running program's glibc heap.<p>It's fun to pause processes, free a bunch of their allocations, then resume them. Most of the time, the processes continue as though nothing happened, but sometimes they do interesting things :)
Show HN: ArXivTok
I made this, and it's fully open source so if someone wants to contribute here you have the url: <a href="https://github.com/Miguel07Alm/arxivtok">https://github.com/Miguel07Alm/arxivtok</a>.<p>For this project I was inspired by <a href="https://wikitok.vercel.app" rel="nofollow">https://wikitok.vercel.app</a>.
Show HN: ArXivTok
I made this, and it's fully open source so if someone wants to contribute here you have the url: <a href="https://github.com/Miguel07Alm/arxivtok">https://github.com/Miguel07Alm/arxivtok</a>.<p>For this project I was inspired by <a href="https://wikitok.vercel.app" rel="nofollow">https://wikitok.vercel.app</a>.
Show HN: ArXivTok
I made this, and it's fully open source so if someone wants to contribute here you have the url: <a href="https://github.com/Miguel07Alm/arxivtok">https://github.com/Miguel07Alm/arxivtok</a>.<p>For this project I was inspired by <a href="https://wikitok.vercel.app" rel="nofollow">https://wikitok.vercel.app</a>.
Show HN: Watch fascism unfold in realtime – an AI-powered tracker
Hi HN, Wanted to share a project I made over the weekend - a real-time fascism tracker. The site fetches recent news from trusted sources, filters it for keywords related to fascism and the current US administration, and then sends it to GPT-4o for classification according to the 14 characteristics of fascism described by Dr. Lawrence Britt. With the rapid pace of news in the US, especially post-election, it’s hard to keep up. I built this site so you can quickly see important topics and draw parallels with similar historical events. Would love to hear your thoughts. - Ryan
Show HN: An homage to Tom Dowdy's 1991 screensaver, "Kaos"
So, I was about 11 years old and just got my first Mac, a IIsi, and of course everyone had AfterDark, but there was this other screensaver program called "Dark Side of the Mac". And within it was, I think now, the most beautiful screensaver ever written. It was called Kaos.<p>Kaos would take anywhere from 10 to 30 seconds to slowly iterate on a single image, starting with a few colored dots and growing into webs within webs of algorithmic beauty.<p>I'm not sure how Tom Dowdy actually wrote the program. What I've done here is to try to reverse engineer how it might have worked, but to animate it at the same time.<p>Freezing a frame (by clicking) seems to often yield something close to the original. My method is to cycle between 1 and 30 lines, with spaced out pixels, and then iterate the whole buffer to draw fainter and fainter points within a radius from any point that's already lit, while also amplifying the ones that were lit before and shifting their colors slightly at the same time.<p>Anyway, I did this tonight but I've been thinking about it for weeks, so, I hope someone enjoys it. Cheers!
Show HN: An homage to Tom Dowdy's 1991 screensaver, "Kaos"
So, I was about 11 years old and just got my first Mac, a IIsi, and of course everyone had AfterDark, but there was this other screensaver program called "Dark Side of the Mac". And within it was, I think now, the most beautiful screensaver ever written. It was called Kaos.<p>Kaos would take anywhere from 10 to 30 seconds to slowly iterate on a single image, starting with a few colored dots and growing into webs within webs of algorithmic beauty.<p>I'm not sure how Tom Dowdy actually wrote the program. What I've done here is to try to reverse engineer how it might have worked, but to animate it at the same time.<p>Freezing a frame (by clicking) seems to often yield something close to the original. My method is to cycle between 1 and 30 lines, with spaced out pixels, and then iterate the whole buffer to draw fainter and fainter points within a radius from any point that's already lit, while also amplifying the ones that were lit before and shifting their colors slightly at the same time.<p>Anyway, I did this tonight but I've been thinking about it for weeks, so, I hope someone enjoys it. Cheers!
Show HN: An API that takes a URL and returns a file with browser screenshots
Show HN: An API that takes a URL and returns a file with browser screenshots