bing.com
Rank vs. Rank.eq vs. Rank.avg: Why Microsoft created three Excel functions for one jobhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d1f0f0a45476bb5659965ac67bf13&url=https%3A%2F%2Fwww.msn.com%2Fen-us%2Ftechnology%2Fgeneral%2Frank-vs-rank-eq-vs-rank-avg-why-microsoft-created-three-excel-functions-for-one-job%2Far-AA21FPvL&c=9359790514439004730&mkt=en-usIf you've ever been confused by Excel's three different ranking functions, you aren't alone. A rank is a rank, right? But they actually differ in how they handle ties and which versions of Excel they ...Apr 24, 2026 3:30 AM
sklad.dev
Show HN: Sklad, a key-value database in Zighttps://sklad.dev/I’ve been building Sklad, a small key-value database in Zig. Right now it supports basic set/get/delete operations, TTL, and range queries. The main idea behind it is to use lock-free data structures and to build the engine around an asynchronous task queue processed by a small pool of worker threads. The task queue is a lock-free MPMC queue. Memtable is also a lock-free skip-list. I also use lock-free append-only queues and stacks throughout the code. The only place where I currently use locking is writing to WAL.The request processing pipeline is split into small tasks. A single I/O worker accepts incoming requests. When a new request arrives, the I/O worker publishes a read-request task, which is then picked up by one of the generic workers. From there, the request continues through a series of smaller tasks: a query-processing task parses the query, an execution task performs the operation, and finally a write-response task sends the result back to the client. Each stage publishes Apr 23, 2026 12:59 PM
news.ycombinator.com
My GLM-5.1 coding agent scored 94.3% on LiveCodeBench Lite (348/369)https://news.ycombinator.com/item?id=47869330I’ve been building Univence, a custom autonomous coding agent platform powered by GLM-5.1.We are building this to be a true Replit/Vercel competitor, but with zero vendor lock-in. You can build and develop entirely on our platform alongside our SOTA agent, but you own the code and can deploy it seamlessly to any 3rd-party host like DigitalOcean, Netlify, AWS, or your own VPS.To prove the core agent's capability, we just ran it against the LiveCodeBench Lite dataset (Python split). Here is the breakdown over a blind 369-problem run: Total: 348/369 passed (94.3%) Easy: 138/141 passed (97.9%) Medium: 152/156 passed (97.4%) Hard: 58/72 passed (80.6%) (Note: We achieved that 80% on Hard by engineering the agent's constraints to strictly prioritize optimal time complexities like O(n log n) over brute-force O(n^2), avoiding the Time Limit Exceeded errors that usually trip up standard wrappers).But we aren't just building this for the tech. My co-founder is a Palestinian refugee currently liviApr 22, 2026 9:10 PM
bing.com
Tyler Millerhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d8844a714440380af7ddfb7d6cc12&url=https%3A%2F%2Fwww.si.com%2Fmlb%2Ftigers%2Fonsi%2Fauthor%2Ftyler-miller&c=16332711847137674185&mkt=en-usTyler Miller is a 26-year-old Sports Journalist who has had a passion for writing ever since graduating from Georgia Southern University with a Journalism degree in 2022. Tyler has been writing about ...Apr 22, 2026 4:59 PM
github.com
Show HN: Agent Vault – Open-source credential proxy and vault for agentshttps://github.com/Infisical/agent-vaultHey HN! Today we're launching Agent Vault - an open source HTTP credential proxy and vault for AI agents. Repo is at https://github.com/Infisical/agent-vault, and there's an in-depth description at https://infisical.com/blog/agent-vault-the-open-source-crede....We built Agent Vault in response to a question that been plaguing the industry: How do we give agents secure access to services without them reading any secrets?Most teams building agents have run into this exact problem: They build an agent or agentic system and come to realize at some point that it needs credentials in order to access any services. The issue is that agents, unlike traditional workloads, are non-deterministic, highly-prone to prompt injection, and thus can easily be manipulated to leaking the credentials that they need to operate. This is the problem of credential exfiltration (not to be confused with data exfiltration).In response to this, some teams we've seen have implemented basic guardrails and security coApr 22, 2026 4:25 PM
app.heytangent.com
Show HN: Momentum – showcase what you're shippinghttps://app.heytangent.com/momentum/tangentMomentum is a way to showcase what you're shipping. Things are moving faster than ever with Claude Code and Codex, and it can be hard to keep up or even share your own progress effectively. At the end of the day, the code is the progress and what runs in production, so a friend and I built this as a fun weekend project to explore the space.Momentum grabs your PRs (backfilled up to 90 days), generates summaries of each one, calculates relevant statistics, and summarizes the narrative arcs of what's been shipped recently. We also use the project website to grab a logo, colors, and writing style (this can updated in the settings). You can edit PR summaries and narrative arcs as well as add customer quotes. As new PRs get merged to main, it uses a webhook to keep things up to date, creating new summaries and trends.Here's a few I created from open source projects that I forked:* https://app.heytangent.com/momentum/pandas* https://app.heytangent.com/momentum/shadcn-ui* https://app.heytangenApr 22, 2026 2:45 PM
notationchesscoach.app
Show HN: Notation – an iOS chess coach (Stockfish on device and optional BYOK)https://notationchesscoach.appHi HN. Solo iOS middle aged, slightly burnt out dad from the UK here, wondering if anyone is interested in what I've been building. Lifelong chess fan, not very good but always trying to improve and I started to build Notation: Chess coach a while back. It's been live a month now on the App Store, doing modest numbers, and I've been learning a lot... mainly make my add brain slow down, stop, test everything twice and never when tired. Submissions will always wait another day!Many people play on chess com, or lichess, just as many in apps and OTB. What my app does (differently I hope) is bring that data together.You can import PGNs of your games, connect to chess com and lichess and sync your games over or play in the app. If you have a Chessnut electronic board, you can play IRL on that as well.Every game, every move is then analysed by a series of on device detectors, and classifiers. And I'm not talking about"I run Stockfish 18 and get your move evals" like most tools do.... Theres aApr 22, 2026 7:46 AM
1clicklinux.org
Show HN: Linux installer .exe without pendrives (secure-boot compatible)https://www.1clicklinux.org/It is fairly simple, but useful for non-power users: a statically-linked Qt app that gracefully edits Windows Boot Manager to do a reboot-once into GRUB, which in turn launches ZorinOS live/installer from disk loopback. I needed to make a custom initramfs with dislocker in it, and to squeeze it a little (default Windows EFI partition is not so big).Currently my biggest issue is that systemd is unable to shut down gracefully when rootfs is mounted from such a deep loop stack. The other is that installing to full disk crashes right after it successfully damages the partition table. I think I could solve both by copying the ISO contents to ramdisk before systemd takes over (initramfs needs to stay slim as I mentioned before) - maybe opportunistically if there is enough RAM (3,5G is not so unreasonable to expect).I decided to make it paid for now (maybe not eligible for show? if so, sorry, I've been mostly a HN reader so far), but I am still considering if my project brought more good by bApr 21, 2026 11:03 PM
charlielabs.ai
Show HN: Daemons – we pivoted from building agents to cleaning up after themhttps://charlielabs.ai/For almost two years, we've been developing Charlie, a coding agent that is autonomous, cloud-based, and focused primarily on TypeScript development. During that time, the explosion in growth and development of LLMs and agents has surpassed even our initially very bullish prognosis. When we started Charlie, we were one of the only teams we knew fully relying on agents to build all of our code. We all know how that has gone — the world has caught up, but working with agents hasn't been all kittens and rainbows, especially for fast moving teams.The one thing we've noticed over the last 3 months is that the more you use agents, the more work they create. Dozens of pull requests means older code gets out of date quickly. Documentation drifts. Dependencies become stale. Developers are so focused on pushing out new code that this crucial work falls through the cracks. That's why we pivoted away from agents and invented what we think is the necessary next step for AI powered software developmApr 21, 2026 4:16 PM
blogmaker.app
Show HN: I built a blogging platform (5 years in, struggling with distribution)https://blogmaker.app/A bit of context…I've been building https://blogmaker.app since April 2021, 5 years now. The launch tweet: https://x.com/BlogmakerApp/status/1383742023627247630I had built it initially as a personal challenge to see if I could have a working product for 20 hours worth of work, and I did it. This was way before AI tools.A few months later, I included a Stripe button and the first payment came immediately in.In September 2022 I decided to focus (give up my contract gigs as a designer/dev). I took out a personal loan for $20K and then an angel investor handed me another $30K, so I could fully focus on Blogmaker (blogstatic then). And that's what I did. Night and day. Mostly working on the product and getting it to where it is now. It was super basic in the beginning, with one theme and non–SEO advanced features that it has now.Up to the end of 2024, prices were yearly only with $19/year and $49/year being the bestsellers.Throughout this time, I was constantly told (by good meaning friendsApr 21, 2026 2:17 PM
news.ycombinator.com
Ask HN: Would you use revocable digital signatures to verify AI/Other content?https://news.ycombinator.com/item?id=47848539I’ve been exploring a potential product direction and wanted to sanity check it with people who actually build and ship things.Background: I’ve been working on a system using our core tech that can generate and verify digital signatures, but with a slightly different property than traditional approaches. The signatures are natively revocable. If the underlying model/system shouldn’t be trusted anymore, the signatures can be revoked either through a hard (delete the signing model) or soft (revoke the lease for the signing model) mechanism. I believe this feature is very beneficial on its own, but there are several other interesting properties (no key management, distributed verification, embedded metadata, etc.)Originally this came out of some deeper R&D work we’re doing, but I’ve been thinking this might actually be the most practical “wedge” into the market while we continue that research (and fund the research).One area that’s been interesting is applying this to AI systems. SpecificApr 21, 2026 1:28 PM
github.com
Show HN: Mulder – Containerized MCP server for digital forensics investigationshttps://github.com/calebevans/mulderI built Mulder for the SANS "FIND EVIL!" hackathon. My background is not in forensics, but I was interested in building the agent. I've been seeing some really cool results and thought this community might like it!Mulder is an MCP server that exposes forensic tools like Volatility, Sleuthkit, Plaso, and more as typed tool calls. Every invocation is recorded in an append-only audit log. When an agent finds something, it submits a "finding" to the case database. Each finding must have evidence citations that are validated before being admitted. If the agent cites evidence or a tool execution that doesn't exist, the finding is dropped.The biggest problem I needed to solve was context window pressure. These investigations often contain a lot of data, and processing it produces a lot of noise that will fill a context window quickly. To avoid this, all tool output is stored in a per-case SQLite database with full-text search. The agent can then search the database and request segments of tooApr 21, 2026 1:06 PM
news.ycombinator.com
Getting back into photography, ditching the phone camera in 2026?https://news.ycombinator.com/item?id=47842292I've been looking through twenty-five-odd years of my own photos. The collection includes scanned 35mm and medium format images; digital pictures from a few Canon Powershot generations and a 20D SLR; and about five iPhones.I've noticed that the non-cell-phone pictures tended to be better, and that in general I seemed to have quite a bit more fun with photos taken with, well, "real" cameras. Probably the best ones were taken with the 20D, which for its time was a really nice camera, for which I was able to bring over some lenses from my film days.I wouldn't rule out more film photography but I think of that as a somewhat separate track. I'd like to get a digital camera that captures a bit more of what I enjoyed about film photography - that high image density, looking through a physical viewfinder, not necessarily curating images in real time... looking, shooting, and moving on.I've been following Fujifilm cameras for awhile in this market, having read about them here a few years ago. TApr 20, 2026 11:10 PM
bing.com
Bandwidth Named a Leader in Inaugural IDC MarketScape for Communications Engagement Platformshttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d7dc938a346ef8eaa7fb5c70897d9&url=https%3A%2F%2Fwww.morningstar.com%2Fnews%2Fpr-newswire%2F20260421cl39204%2Fbandwidth-named-a-leader-in-inaugural-idc-marketscape-for-communications-engagement-platforms&c=12357760629038457398&mkt=en-usRALEIGH, N.C., April 21, 2026 /PRNewswire/ -- Bandwidth Inc. (NASDAQ: BAND), a leading global enterprise cloud communications company, today announced it has been named a Leader in the inaugural IDC ...Apr 20, 2026 10:14 PM
bing.com
Attendee reveals what really went down at Meghan’s Sydney retreat — and how Harry stole the showhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a898042179349db91ee85fed99de0f6&url=https%3A%2F%2Fwww.msn.com%2Fen-us%2Fentertainment%2Fcelebrities%2Fattendee-reveals-what-really-went-down-at-meghan-s-sydney-retreat-and-how-harry-stole-the-show%2Far-AA21m5XL&c=10741498966449288107&mkt=en-usMeghan Markle's ‘Her Best Life’ retreat in Sydney had been in the news since it was announced—and not always for the right reasons. The event drew scrutiny before it even began, with critics ...Apr 20, 2026 9:38 PM
news.ycombinator.com
Show HN: Made a highly organised email client with prompt-free AI withinhttps://news.ycombinator.com/item?id=47835218Hey HN, I've been working on a problem that had me annoyed since a long while. The fact that our email continues to be unorganized, cluttered, and fatiguing even today, is quite surprising tbh. Even the "modern" clients today simply put our emails in a table, support a few keyboard shortcuts, a few simple features, and are done. The newer ones provide AI-based compose assist, and the newest ones now want us to prompt for everything! That seems backwards. By the time you'll type "find that marketing agency's latest invoice from last Tuesday," you would've already spent more time and effort than you should've needed to.There is still *no higher order classification, no deeper grouping*. Every email — a project update, a transaction, a human message; appears the same. Key attachments are always elusive when needed. *Trivial auto-updates crowd us*, and *long forwarded threads are still painful to follow with the untidy nature of their chaining.*I'm sure I am not the only one who found thisApr 20, 2026 2:48 PM
mykana.app
Show HN: MyKana, a Japanese learning app I built for my own studyhttps://mykana.app/I built this for myself while trying to get serious about learning Japanese again:https://mykana.app/I studied a little Japanese more than 10 years ago, but only for a short time, so most of it didn't stick. Since then, I've been to Japan many times because my girlfriend is Japanese and my older brother lives there. More recently, with me and my girlfriend traveling back and forth to Japan quite a lot and both of us having family in Tokyo, I wanted a better way to rebuild my foundation and keep practicing consistently.The app started around kana practice, but grew into something larger:hiragana / katakana practice kanji and vocabulary study review-based learning AI chat for more natural practice some light gamificationThe AI chat is free, but requires Google sign-in. That is mostly to prevent bot abuse, since it costs me money to run, and secondarily because it allows progress syncing across devices.I'd appreciate honest feedback, especially on what would make this more genuinely usefuApr 20, 2026 9:42 AM
bing.com
Cowboys Should Consider Ballhawk Safety Treydan Stukes in Round 1 of 2026 Drafthttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d135d97624d128ae07eb6c71d6834&url=https%3A%2F%2Fwww.si.com%2Fnfl%2Fcowboys%2Fonsi%2Fdallsa-cowboys-should-consider-ballhawk-safety-treydan-stukes-2026-nfl-draft&c=4949447616978804640&mkt=en-usArizona safety Treydan Stukes is emerging as a potential Round 1 prospect, and the Dallas Cowboys need to consider him at Pick No. 20 in the 2026 NFL draft. Cornerback and EDGE have been the position ...Apr 20, 2026 9:00 AM
auxx.ai
Show HN: Auxx.ai – Customer Support CRM (Mix of Attio and N8n)https://auxx.aiHey HN! Markus here. I have been building a Customer Support CRM for the last 12 months to help my dad's business.He was drowning in support messages (dealing with returns, product questions, sales, etc) and didn’t have a good way to organize and attack them, often forgetting to respond.We tried attio, freshworks, n8n for some automations. I liked n8n a lot but I didn’t want to leave to another app to view messages and customer info. Tried to build bridges via Google Sheets and Airtable and then went deep down the rabbit hole and tried building my own solution.At that time I hadn’t programmed in 10 years. I stopped pretty much when Backbone.js and underscore became popular and went on to work in commercial concrete, building many of the high rises in San Francisco and Downtown Los Angeles (including the one with lots of graffiti on it).The goal of the app is to automate as much of customer support as possible, from triage to drafting responses to keeping track of history.Features incluApr 19, 2026 9:49 PM
app.qapir.io
Show HN: Qapir – Generate API tests automatically from docshttps://app.qapir.io/Hi HN,I've been building QAPIR (https://app.qapir.io), an attempt to put most backend testing tools into one place instead of stitching together test code, frameworks, reporting tools, client libraries, mock servers, etc.Today it focuses on REST APIs.You can point it at an OpenAPI spec or let it crawl your API docs. It extracts endpoints and generates ready-to-run API test scenarios automatically. In about 2–3 minutes you get a working baseline test suite with environment variables, secrets, and test reports.Scenarios are written in a concise YAML format (with a structured UI editor if you don't want to touch YAML). They support response extraction, validations, environment variables/secrets, and chained calls.Where I want to take it next:- CI integrations (GitHub / GitLab Actions)- more protocols (GraphQL, WebSockets, gRPC)- more test steps like DB/cache queries, event queues, HTTP mocks, and webhook testingThe idea is that backend testing shouldn't require maintaining large test codeApr 19, 2026 9:14 PM
