Show HN: Bento - An entire PowerPoint in one HTML file (edit+view+data+collab)

Bento/Slides
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5+ submissions · 3+ distinct submitters · 3+ active years · 2 qualifying breakout events from different submitters at least 720 days apart. See exact thresholds and limitations

Making

https://beej.us/blog/data/ai-making/images/nail.jpg
The author feels a strong connection to making things and finds fulfillment in creating projects, but struggles with claiming credit for AI-generated work. They believe there's a difference between making something and asking someone else to make it.

The startup's Postgres survival guide

https://hatchet.run/assets/alexander-DJQH1e6h.jpg
The user is creating a guide for optimizing Postgres performance, covering topics such as indexing, query planning, and autovacuum, and recommends using connection poolers and batching to improve throughput. The guide also touches on advanced Postgres features like row-level locking, partitioning, and triggers, and provides tips for migrating large tables and avoiding table bloat.

Airbus Full Scale Foldable Wing Extensions

https://mediarenditions.airbus.com/v-Gf8PiU6uWi1lECiYdjONTK18FUH5JLOiuywC6bmtg/resize?src=kpkp%3A%2F%2Fairbus%2F38%2F669%2F669220-p3dvu5wugd.jpg&w=480&h=270&poiX=50&poiY=50&el=true&t=fill-down
Airbus is launching a new flight-test campaign to evaluate high-span wings for next-generation single-aisle aircraft. The campaign will test full-scale wing extensions on an A321neo aircraft over the next three years.

10 REM"_(C2SLFF4

https://beej.us/blog/data/mystery-comment/images/wcas.jpg
The author of the 80s microcomputer game The Wizard's Castle embedded machine code in a REM statement to seed the PRNG, which was not immediately apparent due to the use of non-ASCII encoded glyphs. The machine code was later discovered to be a routine that retrieves a random value from the screen and uses it to seed the PRNG, providing a unique randomly-generated dungeon for each game.

Launch HN: Unlayer (YC W22) – Add email and document builders to your app

https://unlayer.com/_next/image?url=%2Fhome-builder-showcase.png&w=3840&q=75
Give your users beautiful builders for emails, pages, and documents. Backed by templates, AI, code-first creation, and developer APIs to power the full content workflow. Embed one builder or all four in your app. One experience for every content type. One JSON design schema for every builder. A helpful layer inside the builder. Not a separate product. Your users stay in flow; AI assists at ...

Mechanical light bulb from 1675 [video]

Neo Radar: A browser-based orbital mechanics engine with 41k real asteroids

NEO Radar integrates trajectories from JPL Horizons with full gravitational perturbations from outer planets, providing accurate numbers for mission planners. It also accounts for the keyhole problem in Jupiter-flyby trajectories and includes observation arcs and uncertainty parameters.

Ghost Cut – or why Cut and Paste is broken everywhere

https://ishmael.textualize.io/assets/img/blog/ghostcut.gif
The user discusses the flaws in traditional cut and paste functionality, including undo issues and document reflow. They propose a new feature called "Ghost Cut" that allows for a reversible and undoable text move operation.

Critical Minerals: Reducing U.S. Import Reliance with Substitution and Recycling

You don't have permission to access "http://www.gao.gov/products/gao-26-108687" on this server.

Perlin's Noise Algorithm

https://blog.jaysmito.dev/_astro/perlin-noise-random.B4upt92-_ZHHzBp.webp
Noise is a function that generates values following specific rules, and it can be classified into 1D, 2D, 3D, etc., based on the number of parameters it takes. Perlin noise is a type of noise developed by Ken Perlin in 1983, which uses precalculated unit vectors and a permutation table to generate a smooth, coherent noise pattern.

Introduction to Formal Verification with Lean Part 1

https://framerusercontent.com/images/SGVAzKgV3Z8ZmS9wfKGBKxUfA.png?width=1758&height=1160
Formal verification is a tool used to verify correctness of mathematical statements, and Lean is a functional programming language and theorem prover that can be used to write down proofs in code and get them machine-checked. The tutorial aims to introduce cryptography engineers to the basics of formal verification using Lean by walking through the very basics of Lean and formally verifying ...

Show HN: DeepSQL – A self-hostable AI DBA agent for Postgres and MySQL

https://deepsql.ai/assets/claude-D_ikSYls.png
DeepSQL monitors workloads, optimizes slow queries, and ships BI dashboards to cut database costs by 38%. what are the top 5 customers having large velocity of data in last 7 days? Show me pick up of bookings by day for customer 30469 for next 7 days Run this on any Linux box, EC2, or container in your VPC. Installs the DeepSQL agent, CLI, and MCP server on the machine. Add database ...

Can a MUD evaluate LLMs? A $99 proof of concept

https://cruciblebench.ai/social-card.png
Nintendo's Gunpei Yokoi used the phrase to describe a design philosophy: take mature, inexpensive, well-understood technology and use it in a new way. CrucibleBench applies it to AI evaluation. Instead of photorealistic simulation or browser automation, we start with a MUD: a multi-user dungeon, the persistent text worlds of the early internet. Its constraints are the point: a limited ...

Passkeys were invented by engineers with zero understanding of consumer brain

https://pbs.twimg.com/profile_images/1755448801957945344/Fh2HNw5Y_200x200.jpg
Passkeys were invented by security engineers with zero understanding of the consumer brain. We had no way to argue its merits since no one understood what they are. As a result, we are now all asked to produce the magic fairy dust to login to apps. It may be on your phone, in your browser, in your operating system, in your body, who knows. But now you’re safe.

"We have information that Moonshot distilled Fable for the development of K3"

https://pbs.twimg.com/profile_images/2036415476335833088/WPlUcJxT_200x200.jpg
Moonshot AI developed a platform to distill Anthropic's Fable for its K3 model, using U.S. models and evading detection. The US supports open AI innovation, but large-scale covert distillation to steal tech is unacceptable.

OpenNode – Bitcoin Payment Processor

https://opennode.com/_nuxt/img/Hero.34316e4.jpg
Get lightning-fast, low-cost bitcoin payments and payouts for your business with our powerful API, ecommerce plugins, or hosted payment pages. We integrated easily with OpenNode's API to accept bitcoin transactions both on- and off-chain with minimal fuss.

Hologram works. Elixir runs in the browser

https://hologram.page/images/logomarks/oban-152c42de3d2737b4edac356d7f718b51.svg
Hologram, a full-stack framework, has made significant progress with Elixir running in the browser and a local-first data layer being built. Companies can sponsor Hologram to support its development and gain benefits such as priority on the roadmap and recognition in release announcements.

Ethics Is the Skill That Matters Most Now

As AI amplifies capabilities, ethics becomes the binding constraint on catastrophe, requiring a shift from treating it as a vibe or rulebook to a trainable skill. The system must change what gets rewarded, prioritizing incentives, accountability, and media structures to prevent the elevation of people without ethics.

Cornell's Interactive Wall of Birds

The website is using Cloudflare security and blocked my action, possibly due to a trigger like a certain word or SQL command. I was trying to perform an action when this page came up, and the Cloudflare Ray ID is needed to report the issue to the site owner.

Intel Starts Shipping High-NA EUV Silicon

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Intel has started using its High-NA EUV scanner in production, patterning layers on its newest notebook processors. The tool, worth $380 million, is a big step forward in chip production but its long-term economics are still uncertain.

Show HN: Web swing through midtown NYC

GENERATING VOXEL MANHATTAN…

The Music of Destruction

I Built a Private Genomics Study with Stoffel MPC

https://vishakh.blog/wp-content/uploads/2026/07/blind-monks-examining-an-elephant-a50f7a.jpg?w=1024
The user built a proof of concept using Stoffel MPC to securely calculate aggregate allele counts from 100 simulated participants without anyone seeing the complete dataset. This demonstrates a credible path to genomic studies that don't collect everyone's raw DNA in one database, making it a promising result for Stoffel's developer-platform goal.

Beaver who escaped to find mate welcomes first kit

https://ichef.bbci.co.uk/news/480/cpsprodpb/87e4/live/dcb5fe70-81e3-11f1-9b73-1d2c7fa8d439.jpg.webp
Steve the beaver, named after Steve McQueen, has welcomed his first kit with mate Doris at Cefn Garthenor farm in Wales. The kit's arrival marks the third consecutive year of successful breeding at the National Trust Wallington estate.

Most Americans say "not in my backyard" to AI data centers

https://www.redfin.com/news/wp-content/uploads/2026/07/avi-werde-VcWqA204WWY-unsplash-150x150.jpg
Most US residents oppose building AI data centers in their neighborhoods, with 53% opposing and 34% supporting. However, data centers in northern Virginia have contributed to a surge in education spending and lower property-tax rates for homeowners.

Which streaming service was that on again

https://www.timwehrle.de/fileadmin/_processed_/5/4/csm_oscar-nord-Sd87V72cJEU-unsplash_f7aef4745c.webp
The author is a movie fan who dislikes the current state of streaming services, which have become fragmented and confusing. They feel that the original promise of streaming has been lost due to the proliferation of multiple services and the return of ads.

Original Apollo 11 Guidance Computer source code for command and lunar modules

https://opengraph.githubassets.com/256e33c9e8f674590433a9eb59ecf85055ffaf599365d27d106ae9e570114d18/chrislgarry/Apollo-11
The Apollo 11 source code for Command Module and Lunar Module has been digitized and made available in a repository for corrections and additions. The code was transcribed from original scans and is intended for use in the Command Module as specified in report R-577.

The Pillars of an API Platform

https://launchany.com/images/cards/social-card-api-governance-part2-pillars.png
Building and maintaining a successful API platform requires more than just technical capabilities; it demands a clear framework to guide decisions, set priorities, and foster collaboration across teams. This is where API pillars come into play. API pillars serve as the guiding principles that define the foundation and direction of an API platform. They align organizational goals with ...