7.25.25 | Graphene OS enhances Android security, Memory safety requires thread safety, AMD CEO predicts TSMC US plant chips 5%-20% pricier

This is a recap of the top 10 posts on Hacker News on Jul 25, 2025.

Graphene OS: a security-enhanced Android build
https://lwn.net/SubscriberLink/1030004/898017c7953c0946/
https://news.ycombinator.com/item?id=44676691

There is no memory safety without thread safety
https://www.ralfj.de/blog/2025/07/24/memory-safety.html
https://news.ycombinator.com/item?id=44672003

AMD CEO sees chips from TSMC's US plant costing 5%-20% more
https://www.bloomberg.com/news/articles/2025-07-23/amd-ceo-su-sees-chips-from-us-tsmc-plant-costing-5-to-20-more
https://news.ycombinator.com/item?id=44663074

I wasted weeks hand optimizing assembly because I benchmarked on random data
https://www.vidarholen.net/contents/blog/?p=1160
https://news.ycombinator.com/item?id=44632674

Scientists may have found a way to eliminate chromosome linked to Down syndrome
https://academic.oup.com/pnasnexus/article/4/2/pgaf022/8016019
https://news.ycombinator.com/item?id=44676817

Open Source Maintenance Fee
https://github.com/wixtoolset/issues/issues/8974
https://news.ycombinator.com/item?id=44669858

Use Your Type System
https://www.dzombak.com/blog/2025/07/use-your-type-system/
https://news.ycombinator.com/item?id=44671484

PSA: SQLite WAL checksums fail silently and may lose data
https://avi.im/blag/2025/sqlite-wal-checksum/
https://news.ycombinator.com/item?id=44671373

Vet is a safety net for the curl | bash pattern
https://github.com/vet-run/vet
https://news.ycombinator.com/item?id=44669998

Positron – A next-generation data science IDE
https://positron.posit.co/
https://news.ycombinator.com/item?id=44634598