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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•8mo 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!

Create a semi-working desktop only based on runtime Windows 3.10 shipped with W

https://tech.lgbt/@nina_kali_nina/115871854239918291
1•todsacerdoti•3m ago•0 comments

India's surveillance state and the future of democracy

https://www.washingtonpost.com/opinions/2026/01/09/india-surveillance-state-democracy/
1•thunderbong•3m ago•1 comments

One Man Rowing Alone in the South Atlantic Rescued

https://www.helsinkitimes.fi/finland/finland-news/domestic/28401-rescue-of-finnish-rower-jari-saa...
1•SebaSeba•4m ago•1 comments

Disposable software as extended cognition – discussion on R/PhilosophyOfMind

https://www.reddit.com/r/PhilosophyofMind/s/Kw6t4rM7kq
1•mcauldronism•4m ago•0 comments

I Worked at a Google Data Center: What I Saw Will Shock You [video]

https://www.youtube.com/watch?v=wLX_w0TtBpY
1•mgh2•4m ago•0 comments

Investigating Record-Based Domain Models

https://coding-mischief.com/?p=1
1•luca_takahashi•5m ago•1 comments

Solving the Founder Control vs. Capital Dilemma with Modular Equity Tokens

https://zenodo.org/records/18209805
1•iam_pri_s•9m ago•1 comments

The Linux audio stack demystified(2024)

https://blog.rtrace.io/posts/the-linux-audio-stack-demystified/
1•birdculture•11m ago•0 comments

How Grok's nudification tool went viral

https://www.theguardian.com/news/ng-interactive/2026/jan/11/how-grok-nudification-tool-went-viral...
1•n1b0m•13m ago•0 comments

Joy and Curiosity #69

https://registerspill.thorstenball.com/p/joy-and-curiosity-69
1•swah•16m ago•0 comments

AI Systems Engineering Patterns – Alex Ewerlöf Notes

https://blog.alexewerlof.com/p/ai-systems-engineering-patterns
1•kiyanwang•16m ago•0 comments

Moving Away from Agile: What's Next?

https://www.youtube.com/watch?v=SZStlIhyTCY
1•kiyanwang•18m ago•0 comments

Keeping 20k GPUs Healthy

https://modal.com/blog/gpu-health
2•birdculture•18m ago•0 comments

Outcomes > Learning Opportunities – By Shreyas Doshi

https://shreyasdoshi.substack.com/p/outcomes-learning-opportunities
1•kiyanwang•19m ago•0 comments

Show HN: pgwire-replication - pure rust client for Postgres CDC

https://github.com/vnvo/pgwire-replication
1•sacs0ni•20m ago•1 comments

Don't fall into the anti-AI hype

https://antirez.com/news/158
3•todsacerdoti•21m ago•0 comments

Timeline of the Human Condition|Milestones in Evolution and History

https://www.southampton.ac.uk/~cpd/history.html
1•hkhn•21m ago•0 comments

Why AI Agents Replaced the Arduino IDE in My ESP32 Projects [video]

https://www.youtube.com/watch?v=5DG0-_lseR4
1•zeristor•21m ago•0 comments

Show HN: ESPTimeCast – DIY WiFi Clock and Weather Station for ESP32 / ESP8266

https://github.com/mfactory-osaka/ESPTimeCast
1•m-factory•24m ago•0 comments

Is Orion's heat shield safe? New NASA chief's review on eve of flight

https://arstechnica.com/space/2026/01/nasa-chief-reviews-orion-heat-shield-expresses-full-confide...
2•smurda•25m ago•1 comments

Ad Blockers helped kill the open web

https://christianheilmann.com/2025/12/17/ad-blockers-helped-kill-the-open-web/
3•saeedesmaili•27m ago•0 comments

Show HN: Ambient Shield – Cinema mode for dual-monitor setups

https://ambient-shield.xyz
1•haka_•28m ago•0 comments

Live Coding Trance Music from Scratch in Strudel [video]

https://www.youtube.com/watch?v=iu5rnQkfO6M
1•sieste•30m ago•0 comments

Show HN: Bound – local code autocomplete LLM fine-tuned on your repository

https://bound.sh
1•misterchocolat•31m ago•0 comments

Exa.ai is indexing personal site data ignoring robots.txt

https://twitter.com/rbbydotdev/status/2010290966138396950
1•rbbydotdev•38m ago•0 comments

Show HN: Building a Recommender System for GitHub Repositories

https://gorse.io/posts/github-recsys.html
1•zhenghaoz•44m ago•0 comments

To Close or Not to Close

https://www.matsimon.dev/blog/to-close-or-not-to-close
1•close2•46m ago•0 comments

Ask HN: Is Web Development in a rut?

1•falloutx•51m ago•2 comments

Analysis of LLM advancement: impactful LLMs in Q3 2027

https://rocketup.pages.dev/posts/statistical_analysis_of_llm_advancment/
1•gidellav•51m ago•0 comments

Ontology and Information Systems

https://plato.stanford.edu/entries/ontology-is/
1•hackandthink•52m ago•0 comments