news.ycombinator.com
Show HN: We Added Notion Calendar to *Superhuman for iMessagehttps://news.ycombinator.com/item?id=49378903Another update on Attention: after launching here last week, over 100 people used Attention!We followed up on feedback and we added a Notion Calendar-style calendar!---We realized pretty quickly when working in Attention (Superhuman for iMessage) that a lot of our conversations were about scheduling things.When we talk to Righthand users, iMessage is a lot of "can we find time to debug the issue live" or "I'll get back to you by this evening with the answer". Personally it's a lot of booking travel and dinners.Since we've been spending so much time in Attention, we decided to add a calendar to fix the issue. It looks like Notion Calendar, but it also supports a few new features like "fuzzy events".The onboarding is more involved and so we'll do 1:1s for a bit (comment below if you want to be in the cohort), but we would love any and all feedback!As before:- Privacy / Security: Your data is yours, fully local in LanceDB + SQLite, never leaving your machine unless you turn on the AI agenAug 20, 2026 7:17 PM
danielvaughn.dev
Show HN: Huzzah – a novel approach to coding with AIhttps://www.danielvaughn.dev/posts/huzzah/Hello everyone. I've been working on this experimental editor called Huzzah.I've been working almost exclusively with coding agents since January of this year, and over the past few months I began to feel utterly exhausted by them. They're great, but I'm finding it more and more tedious to write full sentences for every change I want. Not only that, but it seems there's a complexity limit for codebases - beyond a certain point the agent begins confusing itself.I'd like to go back to writing code, but I don't want to go all the way back to fully manual coding. So I've come up with this interaction paradigm where you: 1. write pseudocode in whatever way makes the most sense to you 2. on save, the editor synchronizes your work to real source code 3. the pseudocode is persisted alongside the generated code, making your prompt effectively a stored record of intent. It may not work for every use case, but in my initial playthroughs I've found it very enjoyable.Right now it's just a proof of Aug 20, 2026 7:05 PM
news.ycombinator.com
InstantDB Is Shutting Downhttps://news.ycombinator.com/item?id=49378706Nothing on their website - but I got an email.Hey there, you’re one of our active users and we wanted to let you know we’re sunsetting Instant.In more detail:New signups will be closed soon. We recommend migrating your apps off of Instant Cloud within the next 12 months. Any subscriptions that were started after July 31st, 2026 will be fully refunded. On August 31st, 2027, all cloud apps will shut down. Backups will stay available for 12 more months, until August 31st, 2028. We’ve written a guide to help you self-host Instant and migrate your apps too. All of Instant is open source, and we’ve worked to make the migration process as seamless as possible. The idea behind Instant started in 2021. We shared a blog post about a database in the browser. It was only an idea, but the more apps we built, the more we saw the need for it. We joined YC in 2022, built a prototype, and shared a version zero.Turning a prototype into something production-grade was a long journey. The work was hard, buAug 20, 2026 6:59 PM
news.ycombinator.com
Ask HN: How do you review and validate LLM generated code?https://news.ycombinator.com/item?id=49378314It's become very fast to generate code nowadays, but how do you review and test all of it?Every time you ask a model to review some piece of code, it comes back with different "findings". So, you still have to filter through the noise of their findings to get to actual defects.And if you try to do the full review manually, then it might take more time to just understand the code than writing it yourself from the beginning.As for testing, you can ask the LLM to write the tests, but you can't be sure if the tests actually assert the expected product flow or just write pass/fail tests for a piece of logic.I would like to know if you have any workflows, strategies, or tricks.Aug 20, 2026 6:26 PM
kandelo.dev
Show HN: Kandelo – a POSIX-compatible multi-process WASM kernel for the browserhttps://kandelo.dev/20260819-demo/Kandelo is an open-source, Wasm-based multi-process kernel that runs POSIX programs in browsers and Node.js.Kandelo is still experimental, but it already runs a substantial range of existing software.Do you have use cases for this?We are trying Kandelo as a new foundation for WordPress Playground which runs server-side WordPress entirely in the browser. Kandelo also looks promising as a sandbox for running agents in the the browser and on the command line. On the side, we've been playing with porting games and desktop environments and even compiling runnable programs within Kandelo.Yet it feels like there are many possibilities we haven't considered.How would you like to use something like this?Demos:Some notes: The demos have been tested in desktop browsers. Unfortunately, YMMV on mobile today. Some of the disk images are large (~50MB) and may take a while to boot initially.Main set, with Shell (bash, vim, nethack, and more), Nginx, PHP, WordPress, and Doom: https://kandelo.dev/202608Aug 20, 2026 6:25 PM
news.ycombinator.com
Are you good at AI, or just using it?https://news.ycombinator.com/item?id=49378057We’re working on a ladder for individual AI proficiency and would love feedback on both the levels and the definitions.L0 New: brand new to AI, or has not yet used it.L1 Chat: simple prompt-and-response use. Work is serial: ask, wait for an answer, then ask again.L2 Contextual Work: gives AI relevant documents, data, or workspace context so it can work within the actual artifact and produce a more useful result.L3 Orchestrate: coordinates multiple agents or AI roles across independent workstreams, with work that may review, challenge, compare, or build on other work. This is not just for engineering.L4 Automate: creates workflows that are triggered by business events and run without someone sitting at a laptop directing each step.L5 Loop: feeds the output of those workflows back into shared knowledge or a company brain, so future workflows improve over time.A few things I’d love your perspective on:Are these the right levels? Are any of the names unclear or overlapping? What observableAug 20, 2026 6:04 PM
radi8.dev
Show HN: We chased a weather balloon across Montana and never found ithttps://radi8.dev/blog/uplink/Since April, I have been working with Sam Flynn (https://drook.dev) to make this balloon payload, UpLink. We did a similar launch last year with Hack Club but this was our first independent launch.UpLink was a 491 gram payload testing the insulation properties of 3D printing filaments, while also transmitting 320x240 images over a radio link -- up from the 18x10 images last year!This is a writeup on our engineering process, mistakes made, and learning experiences. It covers:- Custom electronics designed in KiCad- Firmware design- Results from the data we received on the ground- Image transmission- Launch day logistics, and where things went wrongAll hardware, software, firmware, and CAD is available on GitHub: https://github.com/radeeyate/UpLink, licensed + certified as open source hardware: https://certification.oshwa.org/us002826.htmlIf you just want to see the images received, I put up a gallery here: https://uplink.gallery.radi8.dev/If you have any questions, comments, or concerns,Aug 20, 2026 5:33 PM
foundera.app
Show HN: AI-Native Accelerator that helps builders make something people wanthttps://foundera.app/Most people are not validating their ideas before start building it! I am a 5th time tech founder, gaming included and I built & managed startup accelerator programs. I know lot of things about early stage founders and their pains as I have been there. That is why I am building Foundera. It’s an AI-Native Accelerator for tech builders. Today the problem is; most of the AI coding tools opens with a chat and asking “type your idea and start building”. This is wrong! I want to reduce the time and money spent on ideas that nobody asked for. Try it at https://foundera.app and give me your feedback so that I can help more people.Aug 20, 2026 5:16 PM
news.ycombinator.com
Ask HN: One SSH key or many SSH keys?https://news.ycombinator.com/item?id=49377427Is there any benefit to using multiple, separate keys to authenticate to different resources versus only using a single SSH key?On one hand, I've heard that an SSH key is supposed to represent an identity, so using your "identity" everywhere makes sense.On the other hand, I've heard that keeping SSH keys separate is important in the same way using separate passwords for different resources is important.What do you all think?Aug 20, 2026 5:15 PM
outbid.to
Show HN: Outbid.to, a pay-to-win leaderboard for websiteshttps://www.outbid.to/I built outbid.to as a simple experiment in transparent paid discovery.Submit a website, place a whole-dollar bid, and your bid determines your rank. The highest bidder takes #1. If someone outbids you, your listing moves down but stays live.There are no hidden ranking factors or editorial decisions. The minimum bid is $2, payments are handled through Stripe, and each listing shows the traffic it receives.I’m curious whether an openly pay-to-win leaderboard can be more useful and entertaining than traditional ads or sponsored directories.Would appreciate feedback on the ranking mechanics, pricing, and anything that feels unclear.Aug 20, 2026 4:52 PM
tablecanon.app
Show HN: Building Table Canon, an AI Campaign Memory Engine for TTRPGshttps://tablecanon.app/Hey HN! I built Table Canon to solve a problem my playgroup kept running into: 3-4 hour tabletop gaming sessions leave behind massive audio recordings, but standard meeting note-takers treat every session as an isolated island, butcher fantasy terms, and don't know who is speaking.I wanted an engine that tracks long-term state across months of games, so I built a pipeline to extract entity updates, open quest hooks, and character promises across sessions.The Tech Stack:* Transcription: whisper-large-v3-turbo * Diarization: pyannote for speaker embeddings & voice profile matching Extraction & Memory: OpenAI API with Structured Outputs (JSON Schema enforcement for state updates) * TTS & Audio Recaps: Kokoro / Chatterbox Turbo Music Generation: ACE-Step-v1.5-XL-Turbo for rendering session summaries into lyrics/balladsA Few Engineering Lessons & Challenges:* State Delta Extraction vs. Context Explosions: Feeding 20 prior session transcripts into context windows quickly becomes cost-prohibiAug 20, 2026 4:40 PM
epho.io
Show HN: Epho – run Claude Code with a curlhttps://epho.ioHey folks, Burak here.Epho is an API that allows running Claude Code, Codex or Opencode in a sandbox in the cloud. It abstracts away sandboxes, and allows running coding agents with a single HTTP request.Epho came out of our own struggles with building our own AI analyst: - Sandboxes give you bare machines; you need to configure them for agentic workloads. - Each agent behaves differently, and you need to build integrations with each of them. - Sandbox providers are not very reliable, which means you need to figure out a multi-provider strategy to avoid failures. - Logging, artifacts, input/output, event streaming, and all of the other operational aspects need to be figured out.We had to go through the pain ourselves. We got to a point where things got quite reliable, and it became more obvious to us that this should be a primitive on its own: send a POST request, get the events streaming back to you.Epho is an agents-as-an-API product: you send a request, it spins up a sandbox, configAug 20, 2026 3:45 PM
nytimes.com
Tipshttps://www.nytimes.com/tipsThe New York Times is providing ways to get in touch and share materials with our journalists confidentially.Aug 20, 2026 3:17 PM
nasa.gov
NASA Selects University Teams to Help Advance Aviation Researchhttps://www.nasa.gov/aeronautics/nasa-selects-university-teams-to-help-advance-aviation-research/NASA has selected four university teams to help the agency transform the future of aviation through projects ranging from high-supersonic propulsion systems to low-noise routes for small aircraft flying through cities. The agency made awards through its University Leadership Initiative, which offers student teams the opportunity to contribute to real-world flight research that advances NASA’s goals in aeronautics. […]Aug 20, 2026 2:57 PM
nasa.gov
The View from Above: The Gemini Visual Acuity Experimentshttps://www.nasa.gov/history/the-view-from-above-the-gemini-visual-acuity-experiments/NASA astronaut L. Gordon Cooper, Jr. took 29 color photographs of the Earth with a 70mm camera as he orbited our planet during the Mercury-Atlas 9 mission in May 1963. Cooper’s view from the window of his Faith 7 spacecraft was spectacular, and he reported that he could see vehicles motoring on dirt roads, smoke-belching trains, […]Aug 20, 2026 2:30 PM
bisecto.com
Show HN: Bisecto – A minimalist game about cutting shapes into 50/50 halveshttps://bisecto.com/Hey HN,I built Bisecto (https://bisecto.com), a minimalist browser game with one simple mechanic, cutting (bisecting) a procedural 2D shape into two exact 50/50 halves with a single straight line.Confession: I got completely hooked watching those viral reels of people trying to cut fruits and vegetables into perfectly equal halves, and that was my inspiration for this game :D I've been writing code for 12+ years, but for this project I leaned heavily on LLMs to quickly spin up this game, I thought it's going to be quick, but it took me some time (around 2 weeks) to make the game the way I want it to be.A few game modes to try: - Classic: Endless run, you get to choose difficulty and line cutting mode- Arcade mode: You get 3 lives, you have to keep accuracy above 95%.- Daily challenge: A shared daily seed, 10 identical shapes for everyone, see how you rank.- Friends challenges: Create a challenge and send it to your friends and see who is better at cutting shapes in half.Under the hood:Aug 20, 2026 2:15 PM
github.com
Show HN: Omacosy – Omarchy-style tiling desktop for macOS, no SIPhttps://github.com/paulsp94/omacosyI have been using omarchy on my tower since nearly a year now, shortly after it was released first. I really love the experience I am having with it but I still use my macbook for daly work, so I wanted to recreate a similar experience on it. Thats why I created omacosy, a setup for tiling windows, custom menu bar, some themes from omarchy, focus follows mouse, focus rings around windwos, some mac flavors with trackpad events and a custom mission control overview for your workspaces.I used AeroSpace over yabai for the tiling window manager because I didnt wanted to compromise on SIP which is a mac security feature. It is supposed to be keyboard first like omarchy to move windows organize workspaces etc The setup runs around 157mb of ram and consists of AeroSpace, Karabiner (for the super key), and five small self build swift binaries.I am running it daily on my M1 max macbook, currently on macOS26. I havent tested it much on other macbooks or macOS versions. The install script creates Aug 20, 2026 2:12 PM
news.ycombinator.com
Is this AWS RI/SP simulation engine interesting / valuable?https://news.ycombinator.com/item?id=49374412TLDR; This AWS RI/SP tool we built might have unique features that are important especially for companies running large, high-variability workloads with high coverage targets. We want feedback on how true that is and whether we should open this up to others, possibly even for free or as OSS.Setup: We're a small cloud cost consultancy, but not a tools vendor. We do build a lot of internal tooling for our own use. We serve companies spending 7- to 9-figures (USD) annually.One of the internal tools we built over the past several years is a simulation engine for RIs/SPs that can do a number of things, some of which we believe might be one-of-a-kind in the space today and could be valuable to others.1.) Visualize the entire commitment savings/discount curve for any commitment type (any RI, any SP, of any flavor), showing the exact savings achieved and the marginal discount rate at every level of commitment. This unlocks what we feel is the best purchasing strategy: "buy SP dollars or RI uniAug 20, 2026 1:36 PM
bing.com
LeBron James' son Bryce James channels dad with block and 3-pointer abroadhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a89304547d44236a9ec2600727e5a88&url=https%3A%2F%2Fwww.msn.com%2Fen-us%2Fsports%2Fother%2Flebron-james-son-bryce-james-channels-dad-with-block-and-3-pointer-abroad%2Far-AA2aE66H&c=15172729848954687350&mkt=en-usBryce James went viral for mirroring LeBron James' two-way style during the Wildcats' summer exhibition basketball tour in Lithuania.Aug 20, 2026 1:18 PM
markdownbuddy.inawa.app
Show HN: Markdown Buddy – Native macOS Markdown Editor with Quick Look and Xcodehttps://markdownbuddy.inawa.app/I write a lot of project documentation in Markdown, and two things kept annoying me on macOS: Quick Look shows .md files as raw text, and Xcode shows a README as plain source. So I built the app I wanted. Swift and AppKit, 4.8 MB, sandboxed. The editor is a plain NSTextView. The rendered view is WKWebView, so it uses the system engine rather than a bundled browser, which is where the size difference comes from. Quick Look and Finder thumbnails are separate app extensions sharing the same renderer.Beyond preview: open a folder as a workspace and browse every .md in a tree, search across all of them, and see a graph of the links between documents with broken ones flagged. An Xcode Source Editor extension opens the file you are looking at, rendered, from the Editor menu.One implementation detail I found non-obvious. The live preview restyles the NSTextStorage as you type. The hard rule is that it must never touch attributes while an input method is composing, or Japanese, Chinese and KoreAug 20, 2026 1:08 PM
