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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!

Tell HN: Gemini Hydrogen Reachable via Vertex

1•jcmp•1m ago•0 comments

Online multiplayer and more on an original NES [video]

https://www.youtube.com/watch?v=eGUmaMX9nOs
1•LaserDiscMan•2m ago•0 comments

Show HN: Tmv – File sorting utility written in Bash

https://github.com/SamerKolasevic29/tmv
2•znj29•9m ago•1 comments

FreeSpeech Messenger – Decentralized messaging with your own relay servers

https://github.com/rebisway/freespeech
2•rebisway•12m ago•0 comments

Possible Futures

https://borretti.me/article/possible-futures
2•varjag•14m ago•1 comments

'GTA 6' Pre-Loads Are Slowing Down the Internet, Warns ISP

https://www.forbes.com/sites/paultassi/2026/11/11/gta-6-pre-loads-are-slowing-down-the-internet-w...
3•vismit2000•14m ago•1 comments

Banks turn to credit insurance as they hit limits on lending to AI boom

https://www.ft.com/content/599932b7-a548-4d45-8ba4-70bdb8d14565
2•petethomas•14m ago•0 comments

Uncle Timmy's Public Blog PSF 2024 Bans

https://tim-one.github.io/psf/
3•Bluestein•18m ago•0 comments

1,509 to 6ms: Why Was Sending Feedback So Slow from Sydney?

https://usero.io/blog/why-feedback-was-slow-from-sydney
1•willsmith72•18m ago•1 comments

Show HN: Sparks Dating reply assistant focused on natural conversarion

https://www.yourdatingassistant.com
2•saurav7__•19m ago•0 comments

Computational Thinking Through Modular Sound Synthesis

https://olney.ai/ct-modular-book/index.html
1•CyMonk•21m ago•0 comments

Every email is three emails in a trench coat

https://buttondown.com/blog/plain-text-email
1•maguay•27m ago•0 comments

Open Agentic Web Challenge – Help Build the Open Agentic Web

https://worldwideagenticweb.org/
1•sjdh76•28m ago•0 comments

Unable to start new workspace agent runs

https://status.openai.com
1•planb•34m ago•1 comments

Flash Aloha

https://johnyao93.github.io/flash-aloha/
2•GaggiX•39m ago•0 comments

WFX Phantom: The GitHub Actions Secret Stealer That Deletes Its Tracks

https://www.stepsecurity.io/blog/wfx-phantom-the-github-actions-secret-stealer
1•varunsharma07•40m ago•0 comments

Show HN: TripCoral – Free itinerary and live updates from public flight data

https://www.tripcoral.com/
1•yuav•41m ago•0 comments

Revisiting inferences of trustworthiness from moral judgments

https://www.nature.com/articles/s41598-023-27943-3
1•bryanrasmussen•44m ago•1 comments

Convert PDF to Markdown and JSON

https://github.com/datalab-to/marker
1•saikatsg•45m ago•0 comments

A Family Tree of Software Job Titles

https://zwischenzugs.com/2026/11/03/a-family-tree-of-software-job-titles/
1•slyall•49m ago•1 comments

Tesserae: E-ink dashboard companion. Compose dashboards and push to e-ink panels

https://github.com/dmellok/tesserae
1•thunderbong•50m ago•0 comments

Exploration–Exploitation Dilemma

https://en.wikipedia.org/wiki/Exploration%E2%80%93exploitation_dilemma
1•aragonite•50m ago•2 comments

Ask HN: Still Getting [Dead] Posts

2•_ananos_•56m ago•0 comments

Show HN: Builderoom – find indie-made software by describing what you need

https://www.builderoom.com/en
1•cena576•59m ago•0 comments

Orpheus.el: Emacs Transient Music Player (SSH, MPD, Local, YouTube, etc.)

https://github.com/jjba23/orpheus.el
1•jjba23•1h ago•0 comments

Runwisp: Cron job manager and process supervisor

https://runwisp.com/
1•sts153•1h ago•1 comments

Activae iOS app – turns forgotten screenshots into useful actions

https://apps.apple.com/us/app/activae/id6828392199
1•srsstyle•1h ago•0 comments

Show HN: Indic-Turn-Detector – open-weights end-of-turn model for voice agents

https://huggingface.co/tarun7r/indic-turn-detector
1•tarun7r•1h ago•0 comments

Recursive Functions of Symbolic Expressions and Their Computation by Machine

https://www-formal.stanford.edu/jmc/recursive/recursive.html
3•humility•1h ago•0 comments

Extending concurrent separation logic to the hardware level to verify the xv6 OS

https://arxiv.org/abs/2609.04043
1•mday404•1h ago•0 comments