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!

Let's compile like it's 1992

https://fabiensanglard.net/Compile_Like_Its_1992/index.php
1•andsoitis•4m ago•0 comments

Open Source DDI Solution (DHCP, DNS, IPAM)

https://github.com/spatiumddi/spatiumddi
1•mzac•7m ago•0 comments

Fake News: a game

1•oldfuture•9m ago•0 comments

Satan's 19th-Century Bank Note

https://www.historytoday.com/miscellanies/satans-19th-century-bank-note
1•Caiero•16m ago•0 comments

The Most Human Technology Ever Made

https://a16z.com/the-most-human-technology-ever-made/
1•kaladin-jasnah•16m ago•0 comments

Net July 23 Starship • Flight 13

https://spaceflightnow.com/launch-schedule/
1•bookmtn•17m ago•0 comments

White Sands National Park and the Birth of the Atomic Bomb [video]

https://www.youtube.com/watch?v=RPPAZhEYtnE
1•fortran77•20m ago•0 comments

New Zealand data centre's water consent concerns engineer

https://www.rnz.co.nz/news/business/750158/massive-southland-data-centre-s-water-consent-concerns...
3•billybuckwheat•21m ago•0 comments

GitHub Outage

https://www.githubstatus.com/incidents/8vfyvq16hzh9
5•rumblefrog•24m ago•1 comments

Ask HN: Where Is Karma Used?

1•haebom•27m ago•1 comments

Average Prototypes

https://goodnameforablog.com/posts/very-average-prototypes/
1•phyzix5761•28m ago•0 comments

6.4x faster than llama.cpp, 3.9x faster than MLX

https://www.basecompute.co/getbasert
2•lukasonedge•33m ago•0 comments

The Anti-Palantir Manifesto

https://nonogra.ph/the-anti-palantir-manifesto-07-20-2026
4•arkhiver•42m ago•0 comments

Website Screen Capture: Recordings Your AI Can Read

https://cbrowser.ai/blog/screen-capture-recordings-your-ai-can-read/
1•alexandriaeden•44m ago•0 comments

History and Scale of the H1B Visa

https://numberstation.fm/the-body-shop/
2•StrageMusik•44m ago•0 comments

The crash that wasn't: debugging CI with AI

https://abbyssoul.github.io/engineering/2026/07/19/the-crash-that-wasnt-debugging-kinjo-ci-with-a...
1•sagevoid•45m ago•0 comments

Open BFME 1

https://github.com/Open-BFME/Open-BFME-1
1•OsrsNeedsf2P•46m ago•0 comments

Why some DVLA digital services don't work at night

https://dafyddvaughan.uk/blog/2025/why-some-dvla-digital-services-dont-work-at-night/
1•herbertl•47m ago•1 comments

A Painter's New York Loft that he Moved into in 1967 [video]

https://www.youtube.com/watch?v=_A_u4N08B9U
1•toomuchtodo•51m ago•0 comments

'Live' World Cup Broadcast Is Not Live

https://www.nytimes.com/2026/07/18/sports/soccer/world-cup-live-tv-delay.html
1•lxm•54m ago•1 comments

Show HN: Quartermaster – self-hosted license server with offline signing key

https://github.com/laudendev/quartermaster
1•laudendev•54m ago•0 comments

Epub.js: Enhanced EBooks in the Browser

https://github.com/futurepress/epub.js/
2•gurjeet•57m ago•0 comments

Unvibe Is Here

https://unvibe.live
1•PrestonSusanto•1h ago•0 comments

Show HN: Headroom – measure your GPU's true bandwidth ceiling for local AI

https://ar5en1c.github.io/headroom/
2•Ar5en1c•1h ago•0 comments

DeKalb deputy charged with Flock camera misuse; more Georgia officers fired

https://www.ajc.com/news/2026/07/3-more-georgia-police-officers-fired-over-alleged-flock-camera-m...
52•pir8life4me•1h ago•22 comments

I've Struggled with Addiction. I'm Staying Away from A.I. Chatbots

https://www.nytimes.com/2026/07/19/opinion/ai-attention-social-media-attachment.html
1•geox•1h ago•0 comments

The SLAP stack is the last server stack you'll ever need

https://blakewatson.com/journal/the-slap-stack-is-the-last-server-stack-youll-ever-need/
1•blakewatson•1h ago•0 comments

Production Deployments to Exe.dev

https://asadjb.com/blog/2026-07-19-production-deployments-to-exe-dev
1•asadjb•1h ago•0 comments

Flock cameras collecting face, clothing,tattoo identifiers

https://www.jalopnik.com/2217154/flock-cameras-collecting-more-than-plate-car-information/
2•pir8life4me•1h ago•3 comments

Freeze-Casting

https://en.wikipedia.org/wiki/Freeze-casting
1•soupspaces•1h ago•0 comments