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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!

Venture Multiples and 10 Year Cycles

https://www.sohum.com/venture-multiples-and-10-year-cycles/
1•Sohum•2m ago•0 comments

Use Uncensored Models on OpenCode, Codex, and Claude Code

https://openuncensored.com/blog/use-uncensored-models-in-cursor-cline-codex
1•DhruvAtreja•3m ago•0 comments

AMD implements new subpar swap system

https://www.notebookcheck.net/AMD-s-new-trick-lets-servers-use-half-as-much-DRAM-with-minimal-per...
1•xlayn•4m ago•0 comments

ExxonMobil launches legal challenge to EU carbon capture rules

https://www.ft.com/content/377d2ae5-112f-411f-bfc1-5e498948cb7b
1•JumpCrisscross•6m ago•0 comments

Adobe Source Libraries Overview (2007)

https://stlab.adobe.com/group__asl__overview.html
1•GaryBluto•9m ago•0 comments

Reconsidering the drivers of ice-shelf collapse

https://www.nature.com/articles/s41467-026-76772-1
1•bryanrasmussen•9m ago•0 comments

37% on ARC-AGI-2 Kaggle Without LLMs

https://twitter.com/evilmathkid/status/2120581574584582301
2•anshulbhide•10m ago•0 comments

Cloudflare Clairic: a single pass extraction model

https://developers.cloudflare.com/workers-ai/models/clairic/
1•the_sleaze_•26m ago•1 comments

Patio11 bribes State Department official

https://www.washingtonpost.com/technology/2026/11/11/state-dept-official-took-mediterranean-trip-...
9•JetSpiegel•28m ago•3 comments

The 31-Year-Old Who Called Out Jensen Huang's 'China Problem'–and Shorted Nvidia

https://www.wsj.com/business/nvidia-short-seller-culper-jensen-huang-0e0cec38
3•JumpCrisscross•31m ago•0 comments

OpenAI Fooled by Russian Pranksters into Thinking They Were Talking to Ukrainian

https://theintercept.com/2026/11/11/openai-ukraine-russia-prank-security/
3•SLHamlet•33m ago•0 comments

Just say no to Anthropic's IPO

https://garymarcus.substack.com/p/just-say-no-to-anthropics-ipo
5•JumpCrisscross•33m ago•1 comments

Epigenetic heterogeneity in breast tumours informs diagnosis and prognosis

https://www.nature.com/articles/s41586-026-11230-y
1•wslh•38m ago•0 comments

Reddit broken on desktop as full-screen mobile app prompt takes over page

https://piunikaweb.com/2026/11/11/reddit-broken-desktop-get-the-app-popup-freeze/
4•DeepLogin•43m ago•1 comments

ApoB-100 – 50 years unsolved, measured disordered, folded to order

https://github.com/alozano978-spec/the-apob-protein
1•forged-on-chain•44m ago•0 comments

Wiki.js 3.0 Release

https://js.wiki/blog/2026-wiki-js-3-release/
1•ethanbezz•49m ago•0 comments

Lego marketplace BrickLink offline after 'unusual activity' detected

https://www.bbc.com/news/articles/c6rmgw8zynr4o
3•mbrd•51m ago•0 comments

Jobdork – job leads from employers' career sites, ranked by your resume

https://github.com/jessn-dev/jobDork
1•jbn-dev•51m ago•0 comments

Coding is dead, long live Coding

https://twitter.com/i/article/2103571281014861957
1•iloveyoutwo•51m ago•1 comments

U.S. Partner

https://join.slack.com/t/percys-hq/shared_invite/zt-4gjahdd78-Rg5Vayh_BDP~ReWa7cZHwg
1•wawrzaszekerwin•52m ago•1 comments

What gives you the chills? AI can engineer it

https://medium.com/@joshbocanegra/how-to-engineer-goosebumps-e18935bcb1d2
1•jbai•55m ago•1 comments

San Francisco youth culture died at a peptide party in Fisherman's Wharf

https://www.sfgate.com/local/article/sf-culture-fishermans-wharf-22523601.php
3•toomanyrichies•56m ago•0 comments

Yes, you should panic about AI

https://rutgerbregman.substack.com/p/yes-you-should-panic-about-ai
4•haizhung•56m ago•0 comments

Lessons from 59 Linux Kernel Bug Reports

https://www.microsoft.com/en-us/security/blog/2026/11/11/lessons-from-59-linux-kernel-bug-reports/
1•wondersky•57m ago•0 comments

Keeping names, emails and phone numbers out of LLM prompts with a local proxy

https://github.com/rmpmrepo1278/swapback
1•rohitmishra1278•59m ago•0 comments

Porting my Electron app to Rust: 675 MB to 91 MB

https://sayjot.xyz/blog/rust-port
1•mohakbajaj•1h ago•0 comments

Show HN: Tsfm-pg: Run Chronos-2/Timestral forecasts inside Postgres with SQL

https://github.com/barddoo/tsfm-pg
1•pseudocharles•1h ago•1 comments

Labdoo is a social network providing schools with computers

https://labdoo.org
1•mooreds•1h ago•0 comments

Apple MacBook Pro 14 Proled XDR Review

https://www.notebookcheck.net/Amazing-OLED-panel-Apple-MacBook-Pro-14-PROLED-XDR-Review.1438048.0...
3•zathan•1h ago•0 comments

Ask HN: Skills expected for junior to mid-level DevOps/infra roles in the US?

1•GR_08•1h ago•0 comments