top 20 hacker news stories for 2025-06-30

The new skill in AI is not prompting, it's context engineering

https://www.philschmid.de/context-engineering

1 year ago

Proton joins suit against Apple for practices that harm developers and consumers

https://proton.me/blog/apple-lawsuit

1 year ago

Xfinity using WiFi signals in your house to detect motion

https://www.xfinity.com/support/articles/wifi-motion

1 year ago

There are no new ideas in AI, only new datasets

https://blog.jxmo.io/p/there-are-no-new-ideas-in-ai-only

1 year ago

Gridfinity: The modular, open-source grid storage system

https://gridfinity.xyz/

1 year ago

I write type-safe generic data structures in C

https://danielchasehooper.com/posts/typechecked-generic-c-data-structures/

1 year ago

Melbourne man discovers extensive model train network underneath house

https://www.sbs.com.au/news/article/i-was-shocked-melbourne-mans-unbelievable-find-after-buying-house/m4sksfer8

1 year ago

That XOR Trick (2020)

https://florian.github.io//xor-trick/

1 year ago

Show HN: TokenDagger – A tokenizer faster than OpenAI's Tiktoken

https://github.com/M4THYOU/TokenDagger

1 year ago

★ 475 C++ MIT

Donkey Kong Country 2 and Open Bus

https://jsgroth.dev/blog/posts/dkc2-open-bus/

1 year ago

Show HN: New Ensō – first public beta

https://untested.sonnet.io/notes/new-enso-first-public-beta/

1 year ago

Show HN: A continuation of IRS Direct File that can be self-hosted

https://github.com/openfiletax/openfile

1 year ago

The hidden JTAG in a Qualcomm/Snapdragon device’s USB port

https://www.linaro.org/blog/hidden-jtag-qualcomm-snapdragon-usb/

1 year ago

Ask HN: What's the 2025 stack for a self-hosted photo library with local AI?

https://news.ycombinator.com/item?id=44426233

1 year ago

The provenance memory model for C

https://gustedt.wordpress.com/2025/06/30/the-provenance-memory-model-for-c/

1 year ago

End of an Era

https://www.erasmatazz.com/personal/self/end-of-an-era.html

1 year ago

Bought myself an Ampere Altra system

https://marcin.juszkiewicz.com.pl/2025/06/27/bought-myself-an-ampere-altra-system/

1 year ago

Want to meet people, try charging them for it?

https://notes.eatonphil.com/2025-06-28-want-to-meet-people-charge-them.html

1 year ago

Next month, saved passwords will no longer be in Microsoft’s Authenticator app

https://www.cnet.com/tech/microsoft-will-delete-your-passwords-in-one-month-do-this-asap/

1 year ago

LetsEncrypt – Expiration Notification Service Has Ended

https://letsencrypt.org/2025/06/26/expiration-notification-service-has-ended/

1 year ago