So Much Blood (Score: 153+ in 6 hours)

Link: https://readhacker.news/s/6u589
Comments: https://readhacker.news/c/6u589

Waiting for Postgres 18: Accelerating Disk Reads with Asynchronous I/O (🔥 Score: 154+ in 2 hours)

Link: https://readhacker.news/s/6u62B
Comments: https://readhacker.news/c/6u62B

The DEA is now abandoning body cameras (Score: 150+ in 19 hours)

Link: https://readhacker.news/s/6u4a2
Comments: https://readhacker.news/c/6u4a2

Show HN: Bracket – selfhosted tournament system (❄️ Score: 150+ in 2 days)

Link: https://readhacker.news/s/6tXhs
Comments: https://readhacker.news/c/6tXhs

Over the last two years, I developed a tournament system called Bracket.
Most (if not all) tournament systems available online are paid and ask tons of money (a typical minimum subscription costs 50 euros per month, and go up to 500 euros per month or so), which is not feasible for many small sport clubs/individuals. So I developed my own system and put it publicly on GitHub. AFAIK this is the only open source tournament system available that has a significant amount of features.
I made this tournament system for my badminton club and hosted six paid tournaments successfully.
It features flexible setups, where a tournament can have multiple stages and each stage can have multiple "items" (round robin, single elimination or swiss).
Backend is written in async Python with FastAPI and frontend in Next.js with the great Mantine library.
I would appreciate some feedback!
GitHub: https://github.com/evroon/bracket
Demo: https://www.bracketapp.nl/demo
Docs: https://docs.bracketapp.nl

My quest to make motorcycle riding that tad bit safer (Score: 152+ in 7 hours)

Link: https://readhacker.news/s/6u5gM
Comments: https://readhacker.news/c/6u5gM

Brush (Bo(u)rn(e) RUsty SHell) a POSIX and Bash-Compatible Shell in Rust (Score: 150+ in 1 day)

Link: https://readhacker.news/s/6u3q2
Comments: https://readhacker.news/c/6u3q2

Ty: A fast Python type checker and language server, written in Rust (🔥 Score: 157+ in 2 hours)

Link: https://readhacker.news/s/6u6CE
Comments: https://readhacker.news/c/6u6CE

Show HN: eInk optimized manga with Kindle Comic Converter (+Kobo/ReMarkable) (Score: 151+ in 4 hours)

Link: https://readhacker.news/s/6u69n
Comments: https://readhacker.news/c/6u69n

Kindle Comic Converter optimizes comics and manga for eink readers like Kindle, Kobo, ReMarkable, and more. Pages display in fullscreen without margins, with proper fixed layout support. Its main feature is various optional image processing steps to look good on eink screens, which have different requirements than normal LCD screens. It also does filesize optimization by downscaling to your specific device's screen resolution, which can improve performance on underpowered ereaders. Supported input formats include folders/CBZ/CBR/PDF of JPG/PNG files and more. Supported output formats include MOBI/AZW3, EPUB, KEPUB, and CBZ.
Hey everyone! I'm the current maintainer of KCC since 2023, thanks for using it! I’ve been reading manga on Kindle ever since I got the big 9.7” Kindle DX from 2010 using mangle, and upgraded to the even bigger 10.2” Kindle Scribe 2022 using KCC.
The biggest contributions I've made to KCC are:
- added modern macOS support and removed homebrew requirement
- ported code to run on native Apple silicon M1 chip and later for a 2x speed boost (qt5->qt6)
- free open source windows codesign with SignPath - fixed Kindle Scribe support
- and tons of other various features and bug fixes and developer friendly changes
- created a legacy Windows 7 build with 300+ downloads…
The biggest community PRs were:
- huge 2x speed boosts due to various CPU/IO optimizations
- Kobo/Remarkable support
Enjoy using KCC and let me know if you have any questions!

Mistral ships le chat – enterprise AI assistant that can run on prem (Score: 153+ in 6 hours)

Link: https://readhacker.news/s/6u5S4
Comments: https://readhacker.news/c/6u5S4

Open source Google Analytics replacement (Score: 151+ in 6 hours)

Link: https://readhacker.news/s/6u6F6
Comments: https://readhacker.news/c/6u6F6

Create and edit images with Gemini 2.0 in preview (Score: 152+ in 8 hours)

Link: https://readhacker.news/s/6u6ip
Comments: https://readhacker.news/c/6u6ip

Web search on the Anthropic API (Score: 151+ in 5 hours)

Link: https://readhacker.news/s/6u7b6
Comments: https://readhacker.news/c/6u7b6

NSA spied through Angry Birds, other apps: report (2014) (Score: 152+ in 1 day)

Link: https://readhacker.news/s/6tZRG
Comments: https://readhacker.news/c/6tZRG

Mac Themes Garden (Score: 150+ in 10 hours)

Link: https://readhacker.news/s/6u75n
Comments: https://readhacker.news/c/6u75n

June Huh dropped out to become a poet, now he’s won a Fields Medal (2022) (Score: 152+ in 12 hours)

Link: https://readhacker.news/s/6u7mS
Comments: https://readhacker.news/c/6u7mS

Mycoria is an open and secure overlay network that connects all participants (Score: 150+ in 4 hours)

Link: https://readhacker.news/s/6u8bW
Comments: https://readhacker.news/c/6u8bW

How linear regression works intuitively and how it leads to gradient descent (❄️ Score: 151+ in 2 days)

Link: https://readhacker.news/s/6tXrc
Comments: https://readhacker.news/c/6tXrc

Yggdrasil is an experimental compact routing scheme that is fully decentralised (Score: 150+ in 11 hours)

Link: https://readhacker.news/s/6u7CJ
Comments: https://readhacker.news/c/6u7CJ

Samsung is paying $350M for audio brands B&W, Denon, Marantz and Polk (Score: 151+ in 18 hours)

Link: https://readhacker.news/s/6u6BP
Comments: https://readhacker.news/c/6u6BP

Using NASA’s SMAP satellite to detect L-band interference (🔥 Score: 151+ in 3 hours)

Link: https://readhacker.news/s/6u8vy
Comments: https://readhacker.news/c/6u8vy