frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

Show HN: Reaktiv – I built Excel-like reactive programming for Python

https://bui.app/when-frontend-reactivity-meets-backend-python-the-story-of-my-first-1-000-download-library/
2•buibuibui•1y ago
Hi HN! I created Reaktiv, a Python library bringing reactive programming to the backend world that recently hit 1,000+ monthly downloads.

I'm actively promoting it because I believe signal-based reactivity (a concept that spread rapidly in frontend development) has huge untapped potential in Python. My breakthrough came when I stopped describing it as "Angular signals for Python" and started calling it "Excel-like computation graphs" - suddenly Python developers understood the value.

The library automatically tracks dependencies between computations, only recalculating values when dependencies change. This eliminates manual dependency tracking, prevents synchronization bugs, and reduces cognitive load when managing complex state.

Interestingly, I've noticed some initial interest from data scientists, though I'm still exploring what specific problems it might solve for them. I also believe the Home Assistant/IoT communities could benefit greatly from this approach.

Would love your thoughts on bringing frontend patterns to backend development!

MagicRoute: Routing Without Physical Routers

https://tailscale.com/blog/magicroute-beta
1•mfrw•38s ago•0 comments

World Classics: Modern Translations of the Iliad and Odyssey (EN, FR, DE, ES)

https://worldclassics.org/
1•epsteingpt•2m ago•1 comments

What Will Be Scarce

https://aleximas.substack.com/p/what-will-be-scarce
1•thewileyone•2m ago•0 comments

Omarchy made me rethink my Mac

https://cloudjourneyblog.rohi-lab.org/blog/summon-os
1•RohiRik•6m ago•1 comments

Static vs. dynamic tradeoffs – Rich Hickey (Clojure/Conj 2026) [video]

https://www.youtube.com/watch?v=P5eO7BNyJao
1•fmjrey•8m ago•1 comments

Claude Opus 5.5 finished Baldur's Gate 3 on its own in 39 hours

https://bogdantruta.com/blog/claude-finished-baldurs-gate-3/
2•swyx•9m ago•1 comments

Kvleak:my Claude Code cache hit was 95%,fifth of input spend leaked

https://github.com/shangliy/kvleak
1•shangliy•12m ago•0 comments

Android 17 for RISC-V Available for the RVA23 Profile Through Rise

https://riseproject.dev/2026/10/20/android-17-available-on-rva23-with-rise/
1•fork-bomber•14m ago•0 comments

What They're Not Telling You About Data Centers [video]

https://www.youtube.com/watch?v=1V_o8tfuGdw
1•jonbaer•15m ago•0 comments

C vs. C#: racing VLC's Gaussian blur

https://martinfinkel.com/blog/gaussian-blur-c-vs-csharp/
1•martz•17m ago•0 comments

Why We Still Need an IDE

https://blog.jetbrains.com/blog/2026/10/20/why-we-still-need-an-ide/
2•snafu109•18m ago•0 comments

AI Benchmarks: Climbing the Wrong Hills

https://research.contrary.com/report/ai-benchmarks-climbing-the-wrong-hills
3•gmays•19m ago•0 comments

SaaS Is Dead

https://saasisdead.si/
3•tokozedginidze•23m ago•1 comments

'Phenomenal sighting': Beluga whale spotted off Donegal

https://www.rte.ie/news/ulster/2026/1020/1596169-beluga-whale-donegal/
1•austinallegro•24m ago•0 comments

Letter to a worried student (David Madore)

http://www.madore.org/~david/weblog/d.2026-10-20.2862.letter-to-a-worried-student.html#d.2026-10-...
1•baruchel•25m ago•0 comments

Delivery Robots Accused of Scanning Customers' Faces and Sharing Biometric Data

https://apnews.com/article/chicago-food-delivery-robots-biometric-data-lawsuits-16ead54eb7dc7c6ea...
2•armcat•27m ago•0 comments

TotalBodyIQ, an iOS workout planner that assumes your week will go wrong

https://apps.apple.com/us/app/totalbodyiq-workout-coach/id6760733953
1•andytotalbodyiq•34m ago•0 comments

What should I use instead of Firefox on Android?

2•trystrawberries•37m ago•1 comments

The Flying Pig Problems

https://tianyin.github.io/flying_pig_problems.html
1•rayval•40m ago•0 comments

Design files are becoming text

https://polotno.com/blog/json-design-format
1•Interfaces_pro•42m ago•0 comments

Larry Ellison Went on Borrowing Spree to Bankroll His Son's Warner Bros. Bid

https://www.wsj.com/finance/larry-ellison-warner-bros-loans-49918714
3•JumpCrisscross•43m ago•0 comments

Don't Be Hapless

https://www.paulgraham.com/relres.html
1•nvader•43m ago•0 comments

Ask HN: Does anyone else just want to disconnect from everything?

2•lualover•47m ago•1 comments

Alibaba hikes DeepSeek V4 Flash 0731 output prices by 230%

https://www.stork.ai/newsletter/2026-10-20-alibaba-quietly-tripled-deepseek-prices#lead
5•GloVin•48m ago•2 comments

Legacy of Technology Bubbles

https://medium.com/@smoking2man/legacy-of-technology-bubbles-from-dot-coms-to-web-2-0-b7c97bcfe908
3•Aldus551•50m ago•0 comments

ChatGPT Bulk Delete

https://chatgptbulkdelete.net/
3•vinghunter•52m ago•0 comments

Quantum error correction goes well beyond breakeven

https://arstechnica.com/science/2026/10/quantum-error-correction-goes-well-beyond-breakeven/
2•pveierland•53m ago•0 comments

The Rise of Highly Personal Software

https://bassi.li/articles/customers-build-it-themselves
1•Mikajis•1h ago•0 comments

Pillowfort Is Closing

https://www.pillowfort.social/posts/8413273
17•BrenBarn•1h ago•5 comments

Battlezone Online: BZFlag in the Browser

https://github.com/timriker/bzo
8•indigodaddy•1h ago•3 comments