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Visualization of gravity's affect on light in Newtonian and Relativistic Physics
JSLinux
Article URL: https://www.bellard.org/jslinux/
Comments URL: https://news.ycombinator.com/item?id=43678590
Points: 2
# Comments: 0
Show HN: 1MB iOS App: Background HTTP/WebDAV Servers, CrossPlatform File Sharing
I wrote a minimal iOS app called PocketServer (~1MB in download size) that creates persistent local HTTP/WebDAV servers which can actually run in the background.
Functionalities:
- Serve a folder via WebDAV — browse/add/delete files from others devices on the same network.
- Host a static website or directory listing, accessible locally.
- Share files cross-platform on the same network, no app needed on the receiving side.
https://apps.apple.com/us/app/pocketserver-local-server/id67...
Comments URL: https://news.ycombinator.com/item?id=43678584
Points: 2
# Comments: 1
Lessons from four years of running a SaaS in a competitive market
Article URL: https://maxrozen.com/on-four-years-running-saas-competitive-market
Comments URL: https://news.ycombinator.com/item?id=43678582
Points: 2
# Comments: 0
Scores of Coal-Fired Power Plants Exempted from Rules by Trump
Article URL: https://www.bloomberg.com/news/articles/2025-04-09/trump-exempts-dirtiest-coal-power-plant-from-pollution-rules
Comments URL: https://news.ycombinator.com/item?id=43678578
Points: 2
# Comments: 0
A Foundational Theory for Decentralized Sensory Learning
Article URL: https://arxiv.org/abs/2503.15130
Comments URL: https://news.ycombinator.com/item?id=43678576
Points: 1
# Comments: 0
Show HN: A Sidecar-Based Policy Enforcement Engine for AI Agents
I’ve prototyped sidecar-based policy enforcement engine as a proof of concept to help AI agents (like CrewAI or LangGraph) comply with organizational rules. It intercepts requests/responses, applies YAML-defined policies (e.g., disallowed phrases/tools), and can use an LLM for semantic checks. I’m looking for feedback, suggestions, or collaborators—please check it out - explains the core idea in README and let me know what you think!
Comments URL: https://news.ycombinator.com/item?id=43678573
Points: 1
# Comments: 0
Ask HN: Luxury legacy car manufacturers seem to still struggle with their apps
The software quality for legacy car manufacturers still seems to be lagging behind what I'd expect from modern and functional design in this day and age.
I have a BMW and both the iDrive 8.5 software and the App seem to be designed by some old school enterprise. The app is slow, the voice recognition is bad, there are all these paid upgrades for traffic data, which is free and more ubiquitous on Apple Maps and Google Maps.
It just seems like these manufacturers can't get the software implementation right. Is it because execs in these companies are actually just detached from the final product?
Comments URL: https://news.ycombinator.com/item?id=43678566
Points: 1
# Comments: 0
What's the market for automated content and replies on Twitter?
anyone have experience with this? i know elizaOS is providing a framework for this, but you have no control and have to provide your login info for it to work.
also is anyone actually looking for something like this? something that can turn you into an influencer overnight, post content for you and interact with the users, all while you do something else?
Comments URL: https://news.ycombinator.com/item?id=43678564
Points: 1
# Comments: 0
LoadingArtist Character Creator
Article URL: https://loadingartist.com/character/customizer
Comments URL: https://news.ycombinator.com/item?id=43678557
Points: 1
# Comments: 0
LLM Challenge: Write Non-Biblical Sentences
Article URL: https://gwern.net/non-biblical-sentences
Comments URL: https://news.ycombinator.com/item?id=43678550
Points: 2
# Comments: 0
Growing a Hornbeam Hedge
Article URL: https://map.simonsarris.com/p/growing-a-hornbeam-hedge
Comments URL: https://news.ycombinator.com/item?id=43678545
Points: 1
# Comments: 0
Should You Record That Meeting?
Article URL: https://hbr.org/2025/04/should-you-record-that-meeting
Comments URL: https://news.ycombinator.com/item?id=43678536
Points: 2
# Comments: 0
Query Engines: Push vs. Pull (2021)
Article URL: https://justinjaffray.com/query-engines-push-vs.-pull/
Comments URL: https://news.ycombinator.com/item?id=43678533
Points: 1
# Comments: 0
Ask HN: What are the best books with problem sets that test your understanding?
What books with end-of-chapter problems have you found most valuable for truly mastering a subject? I'm open to recommendations in any field – computer science, math, physics, economics, etc.
Some of my best learning experiences have come from textbooks that forced me to apply concepts - attack problems directly and refer to the prose on need basis to fill the gaps.
My favourites are - 1. Problems in General Physics by I. E. Irodov 2. Concepts of Physics by H.C Verma Part I & II 3. How to Solve It by George Pólya
Comments URL: https://news.ycombinator.com/item?id=43678503
Points: 1
# Comments: 0
Speeding up Terraform caching with OverlayFS
Article URL: https://www.bejarano.io/terraform-overlayfs/
Comments URL: https://news.ycombinator.com/item?id=43678496
Points: 1
# Comments: 0
Tell HN: Sites are bluffing with their cookie pop-ups
For the longest time I always hit "Accept all", because if I'm going to look at stuff like wikileaks etc. I use incognito mode, and I obviously wanted to use the site requesting permission, so I didn't want it to break. Just for fun I've started to always click "Reject all" or "Necessary only" or whatever the non-"Accept all" option is, and...not a single site has functioned worse in any way.
This may be old news to many, but I found it mildly amusing.
Comments URL: https://news.ycombinator.com/item?id=43678490
Points: 2
# Comments: 0
Point-free style pattern matching in TypeScript
Article URL: https://github.com/Snowflyt/megamatch
Comments URL: https://news.ycombinator.com/item?id=43678418
Points: 1
# Comments: 0
Our Homeschool Plans
Article URL: https://ozwrites.com/homeschool/
Comments URL: https://news.ycombinator.com/item?id=43678410
Points: 1
# Comments: 0
Neon – A 5 min daily update of the most viral content on the internet
Article URL: https://www.itsneon.com/
Comments URL: https://news.ycombinator.com/item?id=43678409
Points: 1
# Comments: 0