Hacker News
GitHub – makerspet/oomwoo: Open-source vacuum robot cleaner
Article URL: https://github.com/makerspet/oomwoo
Comments URL: https://news.ycombinator.com/item?id=49040684
Points: 1
# Comments: 0
Grok 4.5 dropped cache price per 1M tokens from 0.50 to 0.30
Article URL: https://twitter.com/TimoteiMolnar/status/2080738447418065374
Comments URL: https://news.ycombinator.com/item?id=49040666
Points: 1
# Comments: 1
Show HN: VinvAI – Ties runtime trace to code segment, prevents reward hacking
Article URL: https://github.com/VinvAI/VinvAI
Comments URL: https://news.ycombinator.com/item?id=49040661
Points: 2
# Comments: 0
Show HN: Scala Tutorials – interactive Scala 3 lessons in the browser
Article URL: https://scalatutorials.com
Comments URL: https://news.ycombinator.com/item?id=49040650
Points: 1
# Comments: 1
Show HN: TripVerdict, in 90 SEC know whether your next trip fits the budget
I was planning a trip to St Johns NewFoundland with my family, while researching on multiple websites such as skyscanner.ca, booking.com, expedia, airbnb, etc for 3 hours, we realized the total trip cost is over $2000.
This triggered TripVerdict, as I work in TravelTech and knows most of backend of the system, I realized I can build pre-research gut check tool which help people know what fits vs what not to save their precious hours.
This product solve 3 pain points: 1. I know my budget and destination, does it fit? 2. I know my budget and confused between 2-5 destinations, how do they compare? 3. I know my budget and want to which destination I could make
Uses real time flight, hotel and rentals prices to provide cheap vs comfortable options. Once you are satisfied with the verdict, then booking links are shown to proceed.
There is no tool out there which provide traveller with this opportunity, every OTA is trying to sell. We are here to protect your budget.
Tech Stack : Typescript, Node.js, Supabase, Clerk, 3 service providers, Claude Code, Vercel, Squarespace
Would really love the feedback of this community on whether tackling right pain points through right medium? Do you think of any other monetization channels?
Happy to answer any foundational or technical questions.
Comments URL: https://news.ycombinator.com/item?id=49040647
Points: 1
# Comments: 0
Why Europa's hidden ocean may be more difficult to reach than scientists thought
Article URL: https://phys.org/news/2026-07-europa-hidden-ocean-difficult-scientists.html
Comments URL: https://news.ycombinator.com/item?id=49040609
Points: 1
# Comments: 0
Recreate BART Lines from Memory
Article URL: https://nalinplad.github.io/draw_bart/
Comments URL: https://news.ycombinator.com/item?id=49040606
Points: 1
# Comments: 0
The Social Security Reckoning Is Finally Coming
Article URL: https://www.theatlantic.com/ideas/2026/07/social-security-taxes-benefits/688042/
Comments URL: https://news.ycombinator.com/item?id=49040581
Points: 1
# Comments: 0
Children's books about scientists convey demotivating messages
Article URL: https://www.pnas.org/doi/abs/10.1073/pnas.2612021123?af=R
Comments URL: https://news.ycombinator.com/item?id=49040575
Points: 2
# Comments: 0
What I've Been Reading
Article URL: https://marginalrevolution.com/marginalrevolution/2026/07/what-ive-been-reading-292.html
Comments URL: https://news.ycombinator.com/item?id=49040573
Points: 1
# Comments: 0
How we built a DuckDB transpiler
Article URL: https://www.cocoalemana.com/blog/building-a-duckdb-transpiler/
Comments URL: https://news.ycombinator.com/item?id=49040555
Points: 1
# Comments: 1
Deep Breaths
Article URL: https://100-deep-breaths.com
Comments URL: https://news.ycombinator.com/item?id=49040533
Points: 2
# Comments: 1
GFQL: Run Cypher on Polars, CPU and GPU, no database required
Article URL: https://www.graphistry.com/blog/cypher-on-polars-cpu-gpu-graph-engine
Comments URL: https://news.ycombinator.com/item?id=49040527
Points: 1
# Comments: 0
Logic Puzzle from the MIT Mystery Hunt
Article URL: https://wondrousnet.blogspot.com/2026/05/solution-to-build-your-own-sudoku-puzzle.html
Comments URL: https://news.ycombinator.com/item?id=49040519
Points: 2
# Comments: 0
Privacy Is Not a Soundbite
Article URL: https://code.mendhak.com/privacy-is-not-a-soundbite/
Comments URL: https://news.ycombinator.com/item?id=49040518
Points: 1
# Comments: 0
Bal-tec: custom-made balls of any material, any size, quality, quantity
Article URL: https://hightechballs.com/index.html
Comments URL: https://news.ycombinator.com/item?id=49040516
Points: 1
# Comments: 0
Doctordle: Test your medical knowledge with daily clinical scenarios
Article URL: https://doctordle.org/
Comments URL: https://news.ycombinator.com/item?id=49040500
Points: 1
# Comments: 0
Tell HN: Protect Privacy, Leave FCC Comment, Deadline Tomorrow
The deadline to comment on the FCC’s proposed rule to require government ID, physical address, and alternative phone number for every phone line in the US is July 25.
You can submit a comment by going to https://www.fcc.gov/ecfs/filings/express, selecting Express Comment at the top of the page, and entering 17-59 and 02-278 as the docket numbers in the first field.
Genuine (not AI generated!) personal accounts will be most compelling. If you are an American, please consider speaking out against this proposed change, which will be a disaster for personal privacy in the USA.
Comments URL: https://news.ycombinator.com/item?id=49039920
Points: 2
# Comments: 0
CREDevSim – Local desktop CRE underwriting engine built in Godot
Article URL: https://credevsim.com/
Comments URL: https://news.ycombinator.com/item?id=49039912
Points: 1
# Comments: 1
The Dark Arts of Web Automation. OpenAI threatened to ban my account
Article URL: https://gallon.me/the-dark-arts-of-web-automation.html
Comments URL: https://news.ycombinator.com/item?id=49039908
Points: 1
# Comments: 0
