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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!

Show HN: VendIQ – AI agent for vendor follow-ups and ops automation

https://vendiq.rishailabs.com/
1•rishailabs•2s ago•0 comments

Vibe Astronomy: Discovering Exoplanets

https://invertedpassion.substack.com/p/vibe-astronomy-discovering-exoplanets
1•twapi•6s ago•0 comments

I've Been Deindexed by Google

https://kennyqin.com/deindexed-by-google/
1•birdculture•1m ago•0 comments

The looming AI consciousness trainwreck (2022)

https://blog.plan99.net/the-looming-ai-consciousness-train-wreck-2e23165b3246
1•mike_hearn•2m ago•0 comments

The Nobel Peace Prize 2026 Awarded to Navanethem "Navi" Pillay

https://www.nobelprize.org/prizes/peace/2026/pillay/facts/
1•karakoram•3m ago•0 comments

OpenAI defends decision to fire researchers

https://www.cnbc.com/2026/10/09/openai-fired-researchers-ai-concerns.html
2•cramer4next•8m ago•0 comments

I'm in a Meeting

https://iminafleeting.com/
1•splintersio•11m ago•1 comments

Tell HN: YouTube is punishing logged-out users

3•penskymaterial•13m ago•0 comments

If your team is too busy doing their 'job' to experiment with AI

https://ghuntley.com/replaced/
1•ghuntley•15m ago•0 comments

Co-creator of Empire Market dark web marketplace given 40-year sentence

https://therecord.media/co-creator-empire-dark-net-market-sentenced
1•giuliomagnifico•16m ago•0 comments

SpaceX calls for better coordination in orbit after near-misses with Starlink

https://arstechnica.com/space/2026/10/spacex-calls-for-better-coordination-in-orbit-after-near-mi...
1•rbanffy•16m ago•0 comments

Max stupid: EU may loosen EV rules for third time in two years, aiding China

https://electrek.co/2026/10/09/max-stupid-eu-may-loosen-ev-rules-for-third-time-in-two-years-aidi...
2•Klaster_1•19m ago•0 comments

TokenRouter: A serving engine for token-level LLM routing

https://fuvty.github.io/thinking_yard_project_page/projects/tokenrouter/
1•ilreb•22m ago•0 comments

South Africa's Navanethem 'Navi' Pillay Wins 2026 Nobel Peace Prize

https://www.france24.com/en/europe/20261009-south-africa-s-navanethem-navi-pillay-wins-2026-nobel...
8•abdullahalharir•27m ago•2 comments

Navanethem Pillay wins Nobel price for peace

https://nl.wikipedia.org/wiki/Navanethem_Pillay
1•abdullahalharir•28m ago•0 comments

Show HN: Stećak – a lightweight terminal inspired by Bosnian medieval tombstones

2•Ilikeruby•34m ago•0 comments

codyssey: turn every Claude Code session into a little adventure

https://github.com/delexw/codyssey
1•delexw•36m ago•0 comments

Show HN: SpeakUp – iOS app for feedback on your speaking (fillers, pauses, etc.)

https://apps.apple.com/gb/app/speak-up/id6760108342
1•__Srey__•36m ago•0 comments

Sift – An LLVM pass for speculative loop vectorization with E-graph SMT caching

https://github.com/sorenkhayes/sift
1•sorenkhayes•37m ago•0 comments

Making Sense of BigQuery Pricing Models

https://www.alvin.ai/blog/bigquery-pricing-models
1•Arimbr•38m ago•0 comments

Aleph Alpha and Mistral launches fuel Europe's sovereign AI push

https://www.renascence.io/news/96889/aleph-alpha-mistral-launches-fuel-europes-sovereign-ai-push
1•nonmaskable•39m ago•0 comments

[video] Pedagogy in the Times of AI

https://www.youtube.com/watch?v=N2a1J0UPeL4
1•newswasboring•41m ago•0 comments

Is This Machine Playing?

https://arxiv.org/abs/2610.07130
1•vinhnx•41m ago•0 comments

OpenClaw Foundation wins ICANN application for .claw top-level domain

https://twitter.com/steipete/status/2108374513931165759
4•soltanov•42m ago•0 comments

APX Forth: A Surprise

https://www.goto10retro.com/p/apx-forth-a-surprise
1•ibobev•49m ago•0 comments

Teen hike Claude Canada wilderness - emergency rescue

https://www.theguardian.com/world/2026/oct/08/teen-hike-claude-ai-directions-rescue-canada-mountain
2•mo7061•50m ago•0 comments

Sound and complete flow typing with unions, intersections and negations [pdf]

https://whileydave.com/publications/Pea13_VMCAI_preprint.pdf
1•fanf2•51m ago•0 comments

When No ID Means No Internet: Age Verification and Right to Access Information

https://www.eff.org/deeplinks/2026/10/when-no-id-means-no-internet-age-verification-and-right-acc...
1•mdp2021•52m ago•0 comments

Show HN: SpectroMood, speech emotion detection with a decision model

https://github.com/ketul93/spectromood
1•ketul_shah•52m ago•0 comments

RTSP to Virtual web cam in Rust

https://github.com/carl-eis/rtsp-rust-virtualcam
1•DistantCl3ric•53m ago•0 comments