Show HN: We’re the founders of Substack, we just launched an iOS app. AMA Hi! This is Chris Best, Hamish McKenzie, and Jairaj Sethi, the founders of Substack, with Sachin Monga, the head of product. Yesterday, we launched an iOS app for Substack, so you can read all your Substack subscriptions in one place, with no distractions. Readers have been tweeting at us for years now to ask when we’d have an app. We’ve long wanted one too, and we suddenly got the manpower to be able to build a good one when we acquired Sachin’s company Cocoon (W19) last year. Soon after starting Substack, we found it easiest to explain what we do as “We make it simple to start a paid newsletter.” Even then, a Substack was more than just an email newsletter: it was also a blog, and it could host embedded video and audio, and people could leave comments and participate in discussion threads. But the term “newsletter” was useful shorthand because everyone kind of got what that meant. All along, though, we’ve been quietly building the tools for what we call “personal media empires,” encompassing different media formats (natively) and community discussion (which we intend to make better and better). By a similar token, right from the start we’ve been intending for the company to do more than just provide subscription publishing tools. We’re excited by the vision of Substack becoming a network, where writers and readers benefit from being part of a larger ecosystem. For writers, it means they can be discovered by readers who might not otherwise have found them. For readers, it means being able to connect directly with writers and other readers and to explore a universe of great work. The app is a key part of the network vision. Nothing changes in terms of writers and readers being in control. The writers still own their mailing lists, content, and IP and can take it all with them anytime they want. Anyone who signs up to a Substack through the app still goes on to that mailing list. And readers still get to choose what appears in their “inbox,” with the power to subscribe and unsubscribe from whatever they want (you can also add any RSS feed into the app via reader.substack.com). But now we’ll have more and better ways to surface recommendations from writers and readers, to show people’s profiles, and to deliver notifications inside and outside of the app. This is just a start for the Substack app. We want to keep improving it, so please give us feedback and ask us the hard questions. What do you think we’re doing wrong? What could be better? What could be great? What might we not have thought of? We’re here for the next couple hours. Ask us anything. https://ift.tt/Q8brjoU March 11, 2022 at 03:21AM
Show HN: Prepform – AI and spaced-repetition to optimize learning Hi, I'm Eric and I'm the founder and lead developer of Prepform. A high-quality education helped me pursue my interests and achieve my goals. I started Prepform so students of all backgrounds have access to the same kind of education. I grew up in Southern California, surrounded by dozens of SAT prep programs, and I swear I must have gone to all of them. Different programs followed different styles and techniques, but the strategy they shared was to create a study plan and review mistakes. A study plan is taking a diagnostic test, setting a target score, creating a study schedule, identifying mistakes, and finally reviewing those mistakes. I wanted to take this structure and optimize it with machine learning, while accounting for elements of human learning and memory. I'm a big fan of SuperMemo, a memorization technique developed by Piotr Wozniak, where you review material just as you're about to forget it. Cognitive psychology tells us human forgetting follows a pattern, but Piotr quantified this behavior to identify the precise moment forgetting happens. The goal was to build on his research with AI and tailor it to not only test prep but to the individual student, and make it the engine of the study plan. The result is Blended Prep, which guides students to internalize knowledge rather than memorize material, and gives them the best chance to ace their next exam. I'm so excited to share this with the HN community, and would love to know what you think. You can try it out at https://prepform.com . Thanks for reading. https://prepform.com March 11, 2022 at 01:57AM
Show HN: I wrote a good React book / website Pre-covid, I was traveling full time to teach ReactJS to corporate clients. My students (mostly developers at banks and insurance companies) would ask me 'What's a good React book?' and I would struggle to recommend something, knowing that all the books sucked or were really out of date. When all my face-to-face training work dried up and I really didn't want to do online training, I magically got a contract to write a book. I started by reading all of the best-selling books on React, and, yeah, they were all really out of date, incomplete, or just wrong. As I started writing what I hoped would be a really good React book, I also wanted the website to be something useful and a notch above a typical book website. So, I tried to have working examples of the code listings on the site and to organize them in a way that would make them useful for when I started teaching again, or for anyone who doesn't want to buy a book and just wants to see how things are done. The book just came out today! The website isn't perfect or done, but here it is: https://ift.tt/QeYSvkf . How'd I do? March 10, 2022 at 02:40AM
Show HN: A Notebook about using `client-go` to write Go clients for Kubernetes Hi everyone! I just published the notebook "Using `client-go` - (season 1)". This is the first “Season” about Kubernetes `client-go` library; it will: - cover the foundations and the core ideas - introduce you to the whole concepts preparatory to master custom controllers implementation You can download the TOC (and then if you like buy the notebook) here: https://ift.tt/CGNcW5M If you just want a look at the source code, you can find it here: https://ift.tt/6c2HhWz All the best! Luca https://ift.tt/CGNcW5M March 9, 2022 at 10:07PM
Show HN: HyperSudoku – Multiplayer sudoku puzzle every 15 min Hi All, This the second iteration of a multiplayer sudoku web-based game I built recently. Hope you like it! Features: 1) No login needed, 2) Web app, that can be added to home-screen as needed, 3) Works on Desktop (with arrow keys supported) & Mobile, 4) Share link with friends to invite to the game Game Rules: 1) New puzzle starts for everyone every 15 minutes, 2) Game ends if you run out of time, 3) Fill all empty tiles correctly before time runs out to win, 4) Incorrect moves will disable the board for a few seconds, with penalty increasing as you've fewer empty tiles remaining Get started here: https://hypersudoku.app March 9, 2022 at 09:20AM
Show HN: Kaado.io – Unifying Personal Productivity Hi HN, a while ago I discovered a problem with problem with personal productivity tools: Every time you find a tool that works well in one regard (say, habit tracking), you neglect your previously working systems (say, your to do list system). So I set about to build a system which unifies all the different aspects of personal productivity. Everything is represented in cards (like flash cards) which are defined in Markdown. The following types of cards exist: * Learning : Classic front/back prompts to memorize things. Think "What is the capital of Argentina?" on the front and "Buenos Aires" on the back. Works with a spaced repetition algorithm so time between prompts is optimized. * Habits : Recurring actions you want to do - you can set the frequency individually. For example "Stand up and walk around your room" every two hours. * Checks : Recurring prompts, similar to habits, but always questions referring to the past. For example a daily "Did you drink enough today?" prompt * To do : One time actions that are deleted upon completion. * Reading List : Used for books, articles, talks etc. There are always a limited number of reading list items active, which will prompt you to read a page a day until you are done with the given book. * Other : Everything else - interesting websites, quotes, art or even memes that you will occasionally see. The idea is that there is a single queue for all types of cards, only ever showing you one item that's due next - whether habit, learning prompt or a random note. This prevents choice fatigue, the dread of lengthy to-do lists and the boredom of endless dry learning prompts. I've been using the app successfully for myself for quite some time now but would love external feedback. You can check it out at https://kaado.io. It's currently completely free (and in fairly early stage development). Simple email signup is needed but you won't get any unprompted mails. Apart from that I would love your takes and ideas regarding personal productivity and what works for you. March 8, 2022 at 08:32PM
Show HN: Prodscape.net – Map your mobile app Hello HN, Long-time lurker, first-time poster here. I've created a service that creates a "flow map" of your mobile app. Check it out at: https://prodscape.net . The goal is to reduce last-minute regressions, promote holistic discussion, and help develop more ownership within an organization. This is something that I would have liked to have had when I was working at a big company. Some caveats: 1.) Only iOS is currently supported but Android-support will be coming soon. 2.) You need a developer-signed IPA file (see the guide on creating an IPA file here: https://ift.tt/CikWwr4). I would appreciate your thoughts on: 1.) your barriers to trying it 2.) your impressions of the map 3.) whether you're interested in applying this within your team 4.) anything else. Don't have access to an IPA file? Email me at illahi@prodscape.net and I will send you one to try. Thanks! March 8, 2022 at 01:47AM
Show HN: I made a privacy-first minimalist Backblaze Creator here. I was looking for something as simple as Backblaze Personal [1] but privacy focused and open source. This is my attempt to build that. Uses PyQt6 [2] for the GUI and Pyinstaller [3] for creating the platform specific binaries. The backup engine under the hood is Restic [4]. The server code is written in Laravel [5]. All the code is on GitHub [6]. I actually really like Backblaze (even use B2 for this offering behind the scenes) so this isn't meant to throw shade their way. Just wanted a private open source alternative. Something like Bitwarden but for backups. [1] https://backblaze.com [2] https://ift.tt/ImE8KMZ [3] https://ift.tt/192GoaP [4] https://ift.tt/7p3G2FN [5] https://laravel.com [6] https://ift.tt/AJlKLY1 https://blobbackup.com March 6, 2022 at 07:28PM
Show HN: Mailwitness – Digital Signatures over Email Hi HN, I'm Marek Dopiera and I wanted to share the digital signature solution which I made with my software house. Your feedback would be much appreciated. We've just launched it - it's a service for signing documents over e-mail - https://mailwitness.com . It still has some rough edges, but hopefully it is useful already. To sign a PDF with somebody, you e-mail them the PDF and put sign@mailwitness.com in CC. If they agree, they need to forward it to sign@mailwitness.com. When they do, you all get your document signed. You can generate PDFs from e-mail, too for convenience. We made this to raise the safety bar of agreements made via e-mail. Via anecdotal evidence, we know that if people do not use services like DocuSign or HelloSign, they consider an e-mail conversation as proof or they print, sign and scan documents. I think we're offering more safety and convenience, because we're preventing the documents from alteration, forging fakes and backdating (by using OpenTimestamp, which essentially constructs a Merkle tree and puts its root into a Bitcoin transaction). I'm hoping that our service becomes useful also because it doesn't require any sign-up (just one confirmation e-mail for Ts&Cs), it's free (in the basic model) and doesn't require the extra cognitive load on learning a web app or a mobile app. You may argue, that one can create a fake e-mail account and use that. That's a valid point, but the reality proves that verification via e-mail is enough for lots of people (vide the agreements over e-mail or DocuSign or HelloSign). In the future we may create paid options, which would include extra identity verification. Even without that extra option, things are not as bad, though: if you use your work e-mail, it's usually your employer who verified your identity. Another question you might have is spoofing. If your e-mail has a valid DKIM signature (which is the case for most major e-mail providers), we'll accept your message. If it doesn't we'll send you a message to verify that you can also receive e-mail. For data safety, we have designed the service such that we discard the documents as soon as we process an e-mail (usually a low number of seconds). Finally, there is legal safety. We operate under the EU law, which qualifies us as a "Trust service provider" and puts requirements on our service. What we do, qualifies as an "Advanced Digital Signature" and according to the EU law, cannot be denied legal effect based on the grounds that it is digital. Monetization path is unclear yet - I want to see if this catches on and if yes, how people are going to use it. Some options include extra services like using your own certificate rather than ours or identity verification. I would really love to hear your feedback - especially for what reasons you would not use it. Thank you https://mailwitness.com March 4, 2022 at 11:26PM
Show HN: I made a WebGL-based app that traces images using circles I was fascinated by this [0] and this video [1]. After many struggles, I finally built this app that traces images using circles similar to what these videos had shown. The most challenging part (to me) is to find a way to convert images to vector lines. I had tried Potrace, but its output is not suitable for my use case: too many small elements share the same border. Potrace's goal is to represent the original image faithfully using vector lines. But I want to trace the image edges. After searching and trying some Potrace alternatives in vain, I finally found my keyword. Surprisingly (to me), it lies at the end of the wiki page of the very topic [2]. Then I found a paper [3] that has nice pseudocode and a C implementation. I rewrote the pseudocode in Rust because I wanted to experiment with rustwasm. Honestly, I didn't care much about the math behind it. From then, I could continue to finish the app and show it to the world. This app is also my chance to learn about rustwasm and WebGL. FYI: this app is offline-only; your images never leave your browser [0] https://www.youtube.com/watch?v=r6sGWTCMz2k [1] https://www.youtube.com/watch?v=-qgreAUpPwM [2] https://ift.tt/Pro6wkp [3] https://ift.tt/qeYthsw https://ift.tt/ugedaB4 March 2, 2022 at 11:26PM
Show HN: Type2Learn – Learn by typing the webpage text in the browser itself Ever happened that while reading a long article, you cannot concentrate and read the same line again and again? Try this extension now! Read the text by typing it on the webpage itself. Practice your touch typing by monitoring your speed, errors you make, and accuracy in real-time. Chrome store link: https://ift.tt/Saprkx9... https://ift.tt/af3lbT4 March 1, 2022 at 11:51PM
Show HN: A more social, Amazon-free alternative to Goodreads Hey HN, I know reading books isn’t everyone’s thing, but it’s certainly been mine for as long as I can remember. Unfortunately, I felt like the online book space was missing a platform that does the book community justice. Goodreads is the go-to "social platform", but if you've been on Goodreads before, you'll probably agree that it's not all that social, and overall not all that exciting. So I set out to build what I personally was looking for (but could never find). The goal: to give the book community a more social and streamlined alternative to Goodreads or StoryGraph. We also felt like it was important for Booqsi to be independent of Amazon; we care about supporting local bookstores, so every book in Booqsi links you to Bookshop.org to purchase that book (not Amazon). Here are some of my favorite features launched as part of beta: - A book-focused social feed (finally!) - Beautifully-rendered custom bookshelves to show off to your friends - Streamlined book recommendations to friends - Easily track reading goals and books you've read And many more... It's completely free and easy to use, and we would love your feedback as you explore the platform. https://www.booqsi.com/ February 28, 2022 at 11:59PM
Show HN: Language aware diff on GitHub PRs Hi HN! We were frustrated with text diffs on GitHub PRs, so we made DiffLens ( https://ift.tt/3gSbFTR ). DiffLens constructs an Abstract Syntax Tree for each file, and uses that semantic information to intelligently diff changes. Checkout the demo on our website ( https://ift.tt/B1S4Lca ). Getting started with DiffLens is easy! Simply install the app on your repositories. The next time you open a PR, DiffLens will automatically create a diff for your changes. If you review code, especially TypeScript, JavaScript or CSS, give DiffLens a try! We're always looking for feedback. If you encounter bugs, or want to give us feedback, we'll be around. You can also reach us at support@difflens.com. https://ift.tt/3gSbFTR February 28, 2022 at 10:23PM
Show HN: I Created a Chrome Extension for PG: TRAB (Tweet Reporter and Blocker) A few days ago I saw this tweet from PG: https://twitter.com/paulg/status/1496549841912094733 ...and guessed it shouldn't be too hard to make a chrome extension to do this (I had never made a chrome extension before) So I took a stab at it - took me a bit over a day to make it, and it was fun to put together. I responded to his tweet with the link to the extension but I'm not sure if he would've seen it. https://ift.tt/1gKswNC February 28, 2022 at 11:02PM
Show HN: A Network of Knowledge Feeds Hi Everyone, I wanted to talk to this community about a particular story from my experience to see how the community feels. I have noticed that I have a lot of educated friends from top universities in my country who are having problems finding work due to a lack of experience, which has brought me to a conclusion that diplomas and CVs are not really good at conveying the knowledge someone has. A friend of mine who is already working on his own company told me that he had trouble finding people to work for him, so I thought about an idea that I am currently incorporating into my app. Perhaps we could make it much easier for you to show your knowledge to companies, as easy as show and tell. A network of live knowledge feeds that constantly keep updating over time showing how someone has evolved. If you know something, put it on full display for everyone to see, show something you have made and explain how you made something so that everyone can understand. If you are good at something, you probably won’t have a hard time explaining it to others, and other people could perhaps learn something by simply following your feed. Educational Institutions have curriculums that aren’t really adaptable, but if we rely on people expressing their unique knowledge to the world, we can create countless combinations of curriculums that will be much more adaptable for the problems we have to face today. I will be trying this approach with some friends over the coming days. My friends are looking for graphic designers, software engineers and music producers. They have established brands and are going to ask people who want to work with them to submit something they made and explain how they did it for everyone to see. You are welcome to join us at EWS ( https://ift.tt/xW7Gme2 ). If this sounds like a good idea, maybe we can kick off a challenge that you can share with your friends to #ShowWhatYouKnow. If you have a company, are looking for employees, maybe you can ask people to show something they made and explain how they made it to see whether someone has the knowledge required to work for you. https://ift.tt/xW7Gme2 February 25, 2022 at 02:16AM
Show HN: Flatsauce – Database with Decoupled Storage and Compute Hi HN, this is Soheil (https://flatsauce.com). Flatsauce is a cloud database service that separates storage from compute while horizontally scaling your database cluster. Think of it as a Postgres read/write cluster with several nodes except that all the nodes in Flatsauce share the same storage. Flatsauce intelligently routes data between the nodes and incorporates a file locking mechanism to ensure there is no data corruption. In traditional read/write replication scenarios usually a write instance is the source of truth. First data is written to the write server then the data is copied to all the read nodes. When more read nodes are needed to run long-running queries the storage needs to be copied for each node. Flatsauce reduces the cost to run a database cluster by eliminating the need to duplicate the data storage every time a new node is added to the cluster. February 24, 2022 at 12:46AM
Show HN: The Brutalist Report – A rolling snapshot of the day’s headlines Hi HN. I was inspired by so many other folks also longing for a return to the old web that I put together a service to scratch my own itch: An extremely fast headline aggregator done in 1990s style HTML. Sharing it with you all for those of you that also would enjoy this now esoteric style. https://ift.tt/7steuNU February 22, 2022 at 11:00PM
Show HN: Wachy – A UI for eBPF-based performance debugging eBPF is an amazing technology that allows safely running user-supplied functions at pretty much arbitrary probe points in a kernel/user space context. Much has been written about how amazing this feature is for kernel observability. But as someone who writes user space code, what I find even more amazing is the support for tracing arbitrary user space programs, with no code changes and low overhead. However, doing in-depth analysis can get complicated and time-consuming. My goal with wachy was to make this debugging significantly easier/faster to use, by displaying traces in a TUI next to the source code and allowing for interactive drilldown analysis. If you get a chance, check out the start of the demo video since (AFAIK) it's quite unique and gives a much clearer idea than I can provide with just text. https://ift.tt/VF6iLes February 22, 2022 at 05:43AM
Show HN: Newser, utility written in go to generate a pdf with news content I've gotten myself a Supernote A5X (awesome device btw) and since it doesn't have a web browser or anything I've wanted to have a way to read news on it. I've hacked together this utility in a couple of days and it works wonders for me personally so I thought it might be interesting to others. It can also be used as a noise free newspaper generator as it removes images/ads/links and other noisy stuff. https://ift.tt/Su7EifL (there is a screenshot of the first page of the generated pdf) It scrapes (news) websites for content and puts it into a pdf. For me the pdf location is my dropbox supernote directory so my setup is to run this thing daily and have a fresh pdf with news whenever I want it. It's rough around the edges probably (currently added crawl support for verge, ars, engadget) but I think it's a good base so if anyone wants to contribute feel free. Some of the stuff I want to add is pictures (maybe), maybe parse the text html to include font styling and other stuff. I've tried to generalize it as much as possible so the crawling is pretty much automatic and is controlled by a config file where you define "rules" on how to parse the website. February 21, 2022 at 12:28AM
Show HN: ICON-3D Avatar Creator from 2D Pixels Realistic virtual humans will play a central role in mixed and augmented reality, forming a critical foundation for the Metaverse and supporting remote presence, collaboration, education, and entertainment. To enable this, new tools are needed to easily create large-scale 3D virtual humans that can be readily animated. However, current methods need either posed 3D scans captured by expensive scanning equipment or 2D images with carefully controlled user poses. Both of them can't scale up easily. ICON ("Implicit Clothed humans Obtained from Normals") takes a step towards robust 3D clothed human reconstruction from in-the-wild images. This also enables creating animatable avatars directly from video with personalized and natural pose-dependent cloth deformation. Homepage: https://ift.tt/95W3hrO Github: https://ift.tt/78HVTuL Google Colab: https://ift.tt/EkRoK2b... Video: https://www.youtube.com/watch?v=ZufrPvooR2Q Paper: https://ift.tt/yzCgRUe https://ift.tt/78HVTuL February 20, 2022 at 04:02AM
Show HN: Statusping.co – Website Monitoring Service Hi everyone Just launched a website monitoring service https://statusping.co . It constantly monitors your website and notifies you whenever it is unavailable or returns an unexpected response. If it seems like something useful to you please try it out https://statusping.co and let me know if you have any questions, feedback or anything else :) https://statusping.co February 19, 2022 at 11:53PM
Show HN: Trilby for Hacker News – An Elegant Way to Experience HN on Android Fellow HNers, I just published a brand new Hacker News client for Android. This is my first mobile app ever, and I worked on this for the last two months. It features / lets you: Browse and read Hacker News - view popular and latest articles. Beautiful design and typography. Login to Hacker News, post new stories, comment and interact with others. Powerful search powered by Algolia, filter to get your desired results. View yours and others' profiles: see bio and latest activities. In-app web view when you don't want to leave the app. Personalize the app the way you want - select your favorite fonts. Compact Mode when you don't want any distractions. Meticulously crafted skins and comment themes, auto dark mode. Open native HN links within the app - look for the Orange links. Keep track of your read articles. View single comment threads. Preview your comment before posting/ ...and countless more. Your opinion matters the most to me, so feel free to reach me. The iOS version should be coming soon. I wish you a nice weekend. https://ift.tt/Obh72ED February 19, 2022 at 11:36PM
Show HN: A Theory of Anxiety Conditions Hi HN, I ve been in this community for a while now and have a huge amount of respect for the people and the forum so I wanted to post this here. This is a pretty random one and I wish to emphasise from the very beginning this is not medical advice and is only based on what I saw in myself. It is therefore entirely up to anyone kind enough to have a read to decide whether they think what I describe makes any sense for them. If people have comments or thoughts I think it would be quite cool to use the GitHub issues as a forum for discussion and collecting peoples’ feedback. TLDR When I was diagnosed with an anxiety condition I thought about the specifics of what was going on in my mind probably an unhealthy amount. I wrote it down, then rewrote it many many times and it then sat in my draw for a few years, and I ve finally decided I should put it online just in case it helps someone else. I believe we have largely overlooked the possibility of using introspection of one’s own consciousness to gain scientific understanding and theories of the casual mechanism involved in anxiety conditions. I propose that when I study my own consciousness there appear to be useful abstractions (many of which we already allude to in common language) and that formalising the system described by these abstractions appears to be useful for understanding the casual mechanism underlying the anxiety conditions I experienced. At it’s most basic the casual mechanism I propose relates to the existence (under certain conditions / beliefs) of a feedback loop between those feelings that are partially endogenous and our thoughts (under the definitions of these terms laid out in the essay). Whilst I can only analyse myself, this casual mechanism also appears to be consistent with and explain many of the clinical characteristics of the anxiety conditions described in the DSM. I believe it also sheds light on the current successful therapeutic approaches as well as their failings. However, as emphasised throughout, this is, and can only ever be a theory about me, and can only ever be falsified on an individual basis. Therefore, I would love to hear other peoples’ opinions on whether this description of my conscious experience and the theory I propose is also true for them. Github issues - https://ift.tt/DhZWfgt... PS apologies for the website I m no web developer https://ift.tt/YMF4dKo February 19, 2022 at 12:23AM
Show HN: Hacker News clone using Remix and React Hi all, author here. This project was a pleasure to do, Remix has very good developer experience. But further than that it's actually a really good way to develop applications, it's a mix of old meets new where the paradigm encourages you to take advantage of web standards for data fetching (forms, links, a tags). And it turns out that it's actually an optimal way to develop simple or even complex web applications which can deploy in a number of runtime environments (including edge workers). So you can get an insanely fast website for users. Note that this project is not necessarily an optimal website implementation (since it copies Hacker News) but rather it's intended to be useful as a starting point or reference for your own projects! You can read about some of the benefits of it on the project page linked. By the way I'm currently available to work (if you email me at clinton.dannolfo @gmail!) https://ift.tt/TQ5hzPO February 17, 2022 at 08:38PM
Show HN: Redirect your customers from your marketing page to your app Hi HN! I've gotten a bit frustrated by going to `datadog.com` instead of `app.datadog.com`. I know that I could use a chrome extension to do this redirect for me (I do). But since this is a painful UX, I think that SaaS companies should do something to improve it for all of their users. So I made `marketing-redirect`, a quick bit of HTML to put on a marketing page that lets customers get automatically redirected to the application they're already paying for: https://ift.tt/MOTFt0I You can see an example of it in action here: https://ift.tt/QHYp9L7 Aside from just making the tools I use better, I'm brainstorming ways to monetize this. My best idea is to create a cloud service the help marketing teams remove or tag the page views from paying customers who visit their marketing page so their analytics software can exclude them as possible leads. I'd love to hear your feedback. Thanks, Elliot February 10, 2022 at 07:24AM
Show HN: I built a site to find the best newsletters Hey HN, sharing something I've been working on. I love reading new voices. I subscribe to a lot of brilliant newsletters but found it hard to keep track of all the great stuff I was reading. I'd read something, love it, never be able to find it again. And then, how do you find new ones worth trying? And which posts do you start with? With Inbox World, you can submit and upvote the best of Substack and other similar platforms. The goal is to build a community around the best independent writing out there. It's like HN for newsletters! This is a passion project for me and I'm not technical at all. This is its earliest v1 form, open to everyone; no logins or data collected, no ads, no premium tiers, everything on one page. And I just added an automated email that sends you the most upvoted links weekly — a newsletter for newsletters. Would love to hear what you think in the comments below. Thanks for reading. PS: If you want to chat about this idea or are interested in working together, I’d love to talk. Ping me here or send me an email at kabir.chibber@gmail.com https://inboxworld.io/ February 5, 2022 at 03:52AM
Show HN: Angularis – like Tetris, but based on triangles Angularis is a game similar to Tetris, but based on triangles instead of squares. Which is why it also has diagonal movements. I had this idea about a month ago and built the game in my spare time. I think it is a bit more difficult compared to Tetris. You kind of have to get used to "think diagonally". Maybe it can be a nice little challenge for you. I'd be happy to receive some feedback. Thanks! https://ift.tt/50WMiYz February 5, 2022 at 03:34AM
Show HN: I developed a website to find books similar to my kid's favorite I built this ReactJS/Ruby on Rails single page web app out of personal need. My son wanted a book like “Curious George” but I didn’t have a good way to find one. The tool allows you to flip through pages of books for online previews. https://ift.tt/AGl86Xs February 4, 2022 at 01:59AM
Show HN: I'm building a new political party (feedback welcome!) Hi HN! I'm working on building a new political party (http://allogov.us/), and would appreciate some feedback on this! If the website isn’t clear, the idea is to get voters to sync on who to vote on. If the party wins, voters will get direct access to individual policy items, instead of a bundle of policies (the representative will vote in line with the app.) What're you looking for in a new political party? I'm not sure how to go about finding the first users: Anyone know anyone who has advice on this? Thanks! February 3, 2022 at 11:15PM
Show HN: I built a service to help companies reduce AWS spend by 50% Hey HN: Kaveh here, the founder of www.usage.ai We help companies drive down AWS EC2 spend. Why? Because the way it's done now is a pain. DevOps and Software Engineers end up spending time managing costs rather than focusing on business problems. Previous to founding Usage, I worked on high-performance computing research at JP Morgan Chase and as a software engineer at a number of smaller startups. Here's how it works: We are typically brought in by a DevOps manager to cut AWS EC2 costs. The app is entirely self-service and the savings are generated automatically, typically we do this live on a call. On average, we reduce AWS EC2 spend by 50% for 5 minutes of work. To reduce by 50%+, we don't touch the instances, require any code change, or change the performance of your instances. We buy Reserved Instances on your behalf (a billing layer change only) and bundle them with guaranteed buyback. So you get the steep 57% savings of 3-year no-upfront RIs with none of the commitment (you can sell them back to us anytime after 30 days). We make money off of a 20% Savings Fee. Happy to chat directly kaveh@usage.ai Have you experienced any issues with managing your company or organization's AWS expenses? We'd love to hear your feedback and ideas! February 3, 2022 at 01:52AM
Show HN: Federalist and Bob – uncensorable website with webtorrent and Handshake Bob Extension just added ability to resolve Handshake domain with webtorrent. Any Handshake TLDs can update its TXT record with a magnet link pointing to a folder that contains a index.html page - Bob Extension will download and show the content using webtorrent when users go to the TLDs (e.g. federalistpapers/) https://ift.tt/Bh1cXP6iO February 2, 2022 at 10:38PM
Show HN: Atlas – A deployment pipeline platform built on Argo CD Atlas is an open-source deployment pipeline platform built for cloud-native applications. Atlas allows users to: - Create continuous pipelines across all their environments and clusters - Add custom tasks/tests plugins (Python scripts, K8S manifests, Argo Workflows, environment setup, etc.) - Automatically rollback applications in case of failure or degradation (Atlas watches the application past the scope of a pipeline run to ensure and enforce stability) - Use all existing Argo features Would love to hear all of your feedback and thoughts on this! https://ift.tt/czRoGgYbC February 1, 2022 at 09:39PM
Show HN: Typing.ai – Secure typing biometrics authentication API Hello HN, I am Rares, the founder of Typing AI ( https://typing.ai ). Typing AI is a typing biometrics authentication API that identifies users by the way they type using Artificial Intelligence. After seeing several hacked sites we came to the conclusion that any application, any database and any code can be hacked. We realized that most security breaches are due to poorly implemented authentication. This project uses Artificial Intelligence in order to detect the typing pattern by checking the keystroke dynamics. A unique typing ID is generated for each user. There are lots of peoples who tested the API and the accuracy level is over 99.9%. Our typing biometrics API can be easily integrated in web, desktop and mobile apps using any programming language. We're targeting big companies such as banks and top 500 businesses, because the API allows us to offer enterprise grade security. The biggest problem in the banking and fintech world right now is the security of the sensitive data. A data breach can lead to bankruptcy. Due to the Covid 19 pandemics, schools and colleges were forced to take exams online, some of our customers are educational organizations such as state and private schools, colleges, online courses and webinar platforms. We are a remote team of 5 members split across Romania, Croatia, Bangladesh and India. Typing AI Biometrics j.d.o.o. is a company registered in the Republic of Croatia. The company is accelerated by Fil Rouge Capital, the leading Croatian VC. By eliminating passwords, businesses can immediately reduce churn and cart abandonment and provide superior security for personal data. We have transformed authentication, making it faster, simpler and better! That's why we are helping more and more developers and businesses to secure web, mobile and desktop applications using typing biometrics authentication based on Artificial Intelligence and Machine Learning. We have a Freemium Software as a Service (SaaS) business model and our monthly paid plans range from $21 to over $2000, depending on the number of user identity checks (monthly API calls). Our API can handle millions of API calls per hour (we paid for application load testing). We have over 1000 nonpaying monthly active users. Our biggest customer has over 1 000 000 registered users and is based in the United States of America. This company is an online teaching platform that offers courses for driving, flying, snorkeling and scuba diving. You can reach us on our official website: https://typing.ai Please share your feedback and ask me anything, thanks! https://typing.ai January 30, 2022 at 02:36AM
Show HN: A Safari web extension to access alternate news As news sources get more polarized to encourage their bases, it gets difficult to separate fact from fiction. Objective news extension makes it easy to access political leaning of over 400 news sources, unbiased news, and coverage from other side of the aisle. All news gathering happens on-device. https://ift.tt/oSziaMeRP January 30, 2022 at 10:02PM
Show HN: CraftBox, Run a Minecraft Server on Your Phone I want to share my newest Android app with everyone on HN. CraftBox allows you to easily run a Minecraft server on your Android device. It is published in the Play Store, https://ift.tt/3oa6jmG... , and posted on GitHub: https://ift.tt/3IQuqi9 I know I am late to the Minecraft scene. I am a bit old to have been part of the original craze, but I now have a son who loves the game. Now that I have played it with him, I can see the appeal. I am an open source developer and the creator of UserLAnd, https://ift.tt/2pZzVo6 , so when I get excited about something, I am always thinking about how I can get involved and contribute to the community. I read an article on how to run a Minecraft Server on your phone, https://ift.tt/2LSxHlp , but I figured I could do better by not making people go through as many steps. So, that is a goal... make this simple. This is the first public release and there are many things that can be improved. You can see some of the issues I am going to be fixing soon in the GitHub issues. Anyway, please check it out and tell me what you think. Thanks! Corbin https://ift.tt/3IGHUN6 January 29, 2022 at 12:43AM
Show HN: Replace “NFT” with “silly JPEG” while browsing Hey HN, Years ago PanicSteve wrote a hilarious Chrome extension to replace all instances of "Cloud" with "Butt". This year, I got annoyed at seeing inane NFT articles everywhere. Thus, NFT-to-Silly-JPEG was born. Repo above or Chrome Web Store: https://ift.tt/3r35v4T... https://ift.tt/33RTAhq January 26, 2022 at 11:02PM
Show HN: Random Data Generator for arbitrary data types Datasino is a command line tool that can come handy when load testing a service or database. Give it a data schema (many compound types supported, including recursive types), an encoding (JSON, CSV or ClickHouse) and a target (a file or a Kafka partition) and a data rate and it will generate a reasonably optimized (native code) random data source. See the top of the README for some examples. If you have any ideas on how to extend this tool so that it's useful to more people, please let me know. https://ift.tt/3IBKh42 January 26, 2022 at 05:08AM
Show HN: SPyQL – SQL with Python in the middle SPyQL ( https://ift.tt/3rJfzPE ) is SQL with Python in the middle, an open-source project fully written in Python for making command-line data processing more intuitive, readable and powerful. Try mixing in the same pot: a SQL SELECT for providing the structure, Python expressions for defining transformations and conditions, the essence of awk as a data-processing language, and the JSON handling capabilities of jq. How does a SPyQL query looks like? $ spyql “ IMPORT pendulum AS p SELECT (p.now() - p.from_timestamp(purchase_ts)).in_days() AS days_ago, sum_agg(price * quantity) AS total FROM csv WHERE department.upper() == 'IT' and purchase_ts is not Null GROUP BY 1 ORDER BY 1 TO json” < my_purchases.csv In a single statement we are 1) reading a CSV (of purchases) with automatic header detection, dialect detection, type inference and casting, 2) filtering out records that do not belong to the IT department or do not have a purchase timestamp 3) summing the total purchases and grouping by how many days ago they happened, 4) sorting from the most to the least recent day and 5) writing the result in JSON format. All this without loading the full dataset into memory. The Readme is loaded with recipes and there is also a demo video: https://vimeo.com/danielcmoura/spyqldemo Any feedback is welcomed! Thank you. https://github.com/dcmoura/spyql January 25, 2022 at 10:59PM
Show HN: Moderator,lightweight peer4peer anon forum hello all! here's a link to my little pinteresting like forum that stores no data on the server and uses IPFS for image storage. The design aesthetic is that everything would in 64kb of memory so we're going for a collapse-proof low bandwidth experience. this makes moderator really fast. https://moderator.rocks is the web preview, a flutter client is in the works at https://ift.tt/32wqdRb take a look, post something fun, ask questions. I'm also on twitter @moderatorium in case interested. Have fun! January 25, 2022 at 11:53PM
Show HN: My new platform. Check it out This platform is an experimental social network solely based on soundclips. SONAR is meant to encourage genuine conversation and entertainment. I believe audio culture in the form of this app could create a community that is safe, smart, and more human than many of the current social media platforms. https://ift.tt/3H3weUf January 25, 2022 at 10:25PM
Show HN: Hacker XP – Hacker News styled as a Windows XP Outlook email client Hello HN, sharing my weekend project. I'm a fan of retro GUIs and fan of HN, so I built an alternative HN front end that resembles a Window XP desktop with an old Outlook email client. Archive and github links if you get 500 errors: https://ift.tt/3fKUiPY.... https://ift.tt/3IsJKkD https://hackerxp.com/ January 23, 2022 at 12:28AM
Show HN: qme: simple utility for queueing long-running commands I keep needing a way to run long-running resource intensive tasks after one another. Normally, I'd write a script which loops over the items, but not knowing what needs to run (I pick files as I go through a folder), I knew it's time I create something to scratch my own itch. So, I've created this utility to queue up commands. It captures command, args, env and working directory and puts it in a queue, and runs it when it's time. At the same time, it spins up an RPC server to receive commands from other instances. If there's no server available, it becomes a server itself and waits for commands or shuts itself down after idling for some time. This is my first (published) Golang project, so guidance & review would be appreciated. https://ift.tt/3fMMi0O January 22, 2022 at 04:01AM
Show HN: Loadjitsu – a modern load testing alternative to JMeter Please meet Loadjitsu, my weekend project, years in the making. Over the years while building different apps and sites, I always felt that I need a modern load testing software.Tools like JMeter, ab are not very easy to use and it seems innovation in load testing which is a crucial part of any software release cycle has been ignored. This is my third attempt at making Loadjitsu, I am so glad that I can finaly release this. A bit more about the software 1. Powered by golang you can run load tests for tens of thousands of connections per second on very average hardware. 2. Cross platform, run it on Windows or Mac or host it on your linux machines 3. Lets you load test databases like MySQL, PostgreSQL, Mongodb out of the box. 4. Will keep adding more load testing targets in the future (even the more esoteric ones) I hope to open source Loadjitsu soon and let users contribute new targets. Hope this makes load testing fun again https://loadjitsu.com January 21, 2022 at 09:58PM
Show HN: Cursor – An AI Email Companion Hey HN! I built https://cursor.so/, a chrome extension to help you write email blazingly fast. Cursor has three key features 1) describe your email and have an AI write a draft for you 2) one-click to shorten your email and 3) highlight text to change its tone (make it more formal/casual/friendly). I hope that Cursor can make writing email more easy and fun for some of you :). Happy to chat about the AI or dev stack behind the product. Let me know if you have any questions/comments/feature requests! January 20, 2022 at 11:05PM
Show HN: Sudokle Hello Hackernew, I just built this up, its a mix of Sudoku and Wordle. Does the super minimum (not a web dev so its all old school). I think its super fun. Please let me know your feelings. [DNS propogation is still going on, sorry if you can't access it yet] https://www.sudokle.com January 20, 2022 at 01:17AM
Show HN: Stop Putting AWS Credentials in GitHub Secrets Greetings! I've created a GitHub action that works that allows GitHub Actions to exchange a GitHub token for AWS Access Credentials. I've cultivated a few examples of it in action: https://ift.tt/3rt5qq6 I've always found management of AWS Credentials has been a pain. So this setting up this Action works like this: 1) A SAML Identity Provider is created in AWS 2) A Role in AWS is set up to trust that Identity Provider 3) A config file is added to the repository indicating which role can be assumed 4) The GitHub Action exchanges the Repo Secret for AWS Credentials using the SAML.to backend for the exchange Let me know what you think! I'm Happy to take questions and comments here or on Gitter: https://ift.tt/3tEk7cE https://ift.tt/33Mas8S January 19, 2022 at 01:20AM
Show HN: A tool to help you manage technical debt Caribou helps software teams manage long-term technical migrations in their projects. For example migrating from one networking library to another or migrating a codebase from one architecture pattern to another. These changes usually happen over a span of a few months and without any tooling, they can be difficult to manage. It’s difficult to understand how much progress has been made, what is still left to do and who are the engineers helping move the migration forward. Caribou was built to solve these problems. So how does it work? In simple terms, Caribou is a Github application which, after being configured, monitors all the changes in your repository and displays a dashboard with the progress of specific migrations along with who is contributing to these migrations. Caribou allows you to define all sorts of migrations using an easy-to-use rules engine; for example changing the project architecture, replacing a library or changing some coding conventions. You can get inspired by our examples in the docs section. Currently, Caribou is still in Beta. We believe the product can provide a lot of value as it currently stands, but there is more functionality that we’re looking to add in the coming months such as Slack integration and Pull Request comments so that engineers can get valuable feedback in their PRs. You can checkout Caribou here: https://ift.tt/2Yxru89 January 18, 2022 at 12:44AM
Show HN: Golang Cafe – Go Jobs Board – You Can Now Filter by Minimum Salary Hi Everyone, I have been working on and off on Golang Cafe for a couple of years. Golang Cafe[0] is the first Go job board with no recruiters and clear salary ranges. Engineers apply directly to companies. There is always a developers section where you can submit your Go developer profile and get hired (for free)[1]. This weekend I have added a new feature. It's now possible to filter jobs by minimum compensation. So for example here's a list of all Go jobs paying at least $100,000+ a year[2]. The project is open source [3]. Any criticism is very welcome. [0] https://golang.cafe [1] https://ift.tt/3upWKBt [2] https://ift.tt/3rnY8UE [3] https://ift.tt/2NnnQVd January 18, 2022 at 12:15AM
Show HN: Birdsong-find people that love the same music (Spotify) (alpha users) Looking for alpha users! See the last paragraph. Yesterday I randomly found a person on Spotify whose playlists I love. It's as if these playlists were made by me; I love them and now I have at least thee new good playlists to listen to. I immediately knew that I want to replicate this experience-finding people that love the same music as me. In the afternoon, I coded a simple web app. The app is very simple and halway complete but ready for users. The currently implemented part works a bit like Tinder selection: 1. you are presented one song you recently listened to a lot 2. a 30 second preview of the song starts playing and you are shown the song's cover, name, and artists 3. you must rate the song with either: - NO: I am sick of this song/I hate it - MEH: it's OK - LOVE: I loveee this song, it gives me the chills 4. repeat-go to step 1 with the next song See a screenshot here: https://twitter.com/touch_marine/status/1478772993602080775 The rest of the app (the half not yet implemented) will take this ratings and match them with others. You will get a list of matches and you will be able to go to their Spotify's profile and listen to their public playlists. I am looking for any users that would like to give the app a go. Unfortunately, I have a limited API access which means only 20 people can register and I first need to enter their Spotify email into the Spotify Developer Dashboard. To register send me your Spotify email to scout at touchlabs.io or on twitter to @touch_marine (https://twitter.com/touch_marine). January 5, 2022 at 10:34PM
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