frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

Open in hackernews

Show HN: We Paid Facebook to Convert People Who Were Buying Anyway

https://www.kruxel.com/
2•bmahir•6h ago
Retargeting looked like a win, low CAC, solid conversion. So we kept spending.

But most of those users would’ve converted without the ad.

We were just paying Facebook to take credit for what was already happening.

Our reported ROI was a lie and we didn’t even know it.

We built kruxel.com to avoid this.

In just one prompt it shows true incremental impact by comparing retargeted users to similar users who weren’t shown the ad.

If there’s no real lift, we cut spend.

No fluff, no false credit, just decisions that move the bottom line.

ADXL345 Die Analysis

https://www.tinytransistors.net/2024/08/25/adxl345/
1•picture•39s ago•0 comments

Show HN: We made a tool to reduce echo chambers on social media

https://www.tandfonline.com/doi/full/10.1080/29974100.2025.2517191
2•academic_84572•17m ago•0 comments

Why AO3 Was Down

https://www.reddit.com/r/AO3/s/67nQid89MW
1•danso•17m ago•0 comments

Cats Confuse Reasoning LLM: Query Agnostic Adversarial Triggers for Reasoning

https://arxiv.org/abs/2503.01781
1•felineflock•20m ago•0 comments

Beef Prices Have Hit a Record

https://www.nytimes.com/2025/07/04/business/beef-prices-cattle.html
3•geox•21m ago•1 comments

Claude.md: one big file vs. linking to project docs

https://ntharani.com/posts/2025/claude-code-md-inference-vs-length/
1•probablynish•22m ago•0 comments

Remember API

https://rememberapi.com/
1•handfuloflight•28m ago•0 comments

8B in BTC Moved from 14-year-old Wallet

https://www.bitcoinsensus.com/news/bitcoin-og-wallets-move-80000-btc-could-it-be-satoshi/
3•david927•37m ago•0 comments

USV partner says Mamdani as dangerous to democracy as Trump

https://continuations.com/in-defense-of-democracy
2•brendanyounger•41m ago•4 comments

Speed Up Django Queries with values() over only()

https://johnnymetz.com/posts/django-values-over-only/
1•oppositeinvct•42m ago•0 comments

Compost is an RPC protocol generator with a simple wire format

https://github.com/STMicroelectronics/compost-rpc
1•axoltl•47m ago•0 comments

Photograph of ISS Solar Transit

https://old.reddit.com/r/spaceporn/comments/1lfgtiw/on_sunday_i_set_up_my_telescopes_in_the_middle_of/
1•gen220•50m ago•0 comments

The body parts evolution still can't explain

https://www.bbc.com/future/article/20250703-the-body-parts-evolution-still-cant-explain
4•bookofjoe•50m ago•2 comments

Remix the Declaration of Independence

https://7-4-25.com
2•anonomouse•56m ago•1 comments

Reflection and open implementations (2006) [pdf]

https://www.dcc.uchile.cl/~etanter/courses/cc71p/2006/reflection_oi.pdf
1•PaulHoule•1h ago•0 comments

Apl87

https://www.jsoftware.com/papers/APL87.htm
3•todsacerdoti•1h ago•0 comments

Czech Republic hit by major power outage triggered by fallen cable

https://www.reuters.com/world/europe/czech-republic-hit-by-major-power-outage-2025-07-04/
7•r721•1h ago•0 comments

Five million years of Antarctic Circumpolar Current strength variability (2024)

https://www.nature.com/articles/s41586-024-07143-3
3•gone35•1h ago•0 comments

Show HN: ThermoAsk – letting LLMs dynamically set their own sampling temperature

https://amanvir.com/blog/getting-an-llm-to-set-its-own-temperature
1•venusgirdle•1h ago•0 comments

How Kyoto, Japan Became the World's Loveliest Tourist-Trap

https://nymag.com/intelligencer/article/kyoto-japan-tourism-attraction-travel-tourist-trap.html
3•ecliptik•1h ago•0 comments

How We'll Personally Feel the Loss of Federal Workers

https://slate.com/news-and-politics/2025/07/doge-workers-emergency.html
6•petethomas•1h ago•2 comments

Integrated photonic source of Gottesman–Kitaev–Preskill qubits

https://www.nature.com/articles/s41586-025-09044-5
2•gnabgib•1h ago•0 comments

A new study from Norway has a lot to say about the Flynn effect

https://twitter.com/RiotIQ/status/1929603420870373554
5•r721•1h ago•0 comments

Scott Alexander on whether prediction markets are useless for AI-related topics

https://twitter.com/slatestarcodex/status/1931964662482174183
1•r721•1h ago•0 comments

Billionaire Brain Wave: Transform Your Mindset for Success

https://sites.google.com/view/brain-wave-success/home
2•fitlifehub•1h ago•2 comments

Actix-passport: A comprehensive, flexible authentication framework for actix-we

https://github.com/densumesh/actix-passport
3•todsacerdoti•2h ago•0 comments

Why Agentic AI Needs a Credit Infrastructure, Not Just a Payments Layer

https://blog.zactownsend.com/why-agentic-ai-needs-a-credit-infrastructure-not-just-a-payments-layer
2•zt•2h ago•0 comments

So you wanna build an aging company

https://www.librariesforthefuture.bio/p/is-this-aging
2•apsec112•2h ago•0 comments

OBBB signed: Reinstates immediate expensing for U.S.-based R&D

https://www.kbkg.com/feature/house-passes-tax-bill-sending-to-president-for-signature
96•tareqak•2h ago•43 comments

Sam Altman says he's 'politically homeless' in July 4 post bashing Democrats

https://twitter.com/sama/status/1941151234775511328
8•tareqak•2h ago•11 comments