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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!

A Friendly Introduction to Racket

https://geometridae.bearblog.dev/a-friendly-introduction-to-racket/
1•signa11•41s ago•0 comments

StateM: Stateful control for long-horizon agents

https://github.com/henryqin1997/statem
1•johntrob14•1m ago•1 comments

TikTok

1•kpyaesoneaung•3m ago•0 comments

Freud in the Age of Therapy-Speak

https://hedgehogreview.com/issues/the-fading-promise-of-higher-education/articles/freud-in-the-ag...
1•DiscourseFan•4m ago•0 comments

Going out of my way to prove I'm not an AI – Ep. #1 – OG images

https://huijer.co/notes/going-out-of-my-way-to-prove-im-not-an-ai-og-images
1•Doncametic•5m ago•1 comments

Volkswagen needs deep cuts to remain competitive, CEO says ahead of crunch talks

https://www.reuters.com/business/world-at-work/vws-blume-says-overhead-costs-30-above-rivals-5000...
2•Markoff•6m ago•1 comments

Show HN: I make my AI agents file paperwork before they're allowed to code

https://github.com/kidus-tiliksew/conveyor
1•kidustiliksew•7m ago•0 comments

Show HN: Running a full AI coding agent inside Cloudflare Durable Object

https://github.com/pawaca/dsh-edge
1•pawaca•10m ago•0 comments

Ask HN: Who's Building Small and Simple?

1•8by3•13m ago•0 comments

A Conversation with Cinematographer Vilmos Zsigmond

https://cinemasojourns.com/2026/08/22/a-conversation-with-cinematographer-vilmos-zsigmond/
2•jjgreen•14m ago•0 comments

Show HN: Pisesh, a zero-dependency TUI for finding and resuming Pi sessions

https://github.com/Blue-B/pisesh
1•blue-b•14m ago•0 comments

Brand Hype Has Existed Since the Bronze Age, Scientists Discover

https://www.404media.co/brand-hype-has-existed-since-the-bronze-age-scientists-discover/
1•Brajeshwar•16m ago•0 comments

Ask HN: Who's Building Small and Simple?

https://werkr.co.za/s/SFMyNTY.g2gDaAJhA3cDbmlsbgYAt_y4KaABYgABUYA.N-OUR_TJ-EnHPBpyC93dNsqjOWfSo-2...
1•8by3•16m ago•1 comments

Ex-Amazon VP: Why Bad Managers Don't Get Fired [video]

https://www.youtube.com/watch?v=76v7xbi_USc
2•adletbalzhanov•17m ago•0 comments

Good writing is obvious, not original

https://www.seangoedecke.com/good-writing-is-obvious-not-original/
1•tolerance•17m ago•0 comments

Nostr is an inclusive communication commons

https://nostr.org/
3•Bluestein•19m ago•1 comments

Ask HN: Is there an anti-mosquito system that actually works?

1•simonebrunozzi•23m ago•0 comments

You can't buy anything on these food delivery and shopping sites

https://www.cbc.ca/lite/story/9.7313588
3•colinprince•25m ago•1 comments

He Said He Was the Healthiest Man. Then Came a Diagnosis

https://www.nytimes.com/2026/08/21/us/bryan-johnson-biohacker-autoimmune-gastritis.html
2•whack•26m ago•2 comments

One Step Away from Terminators

https://www.ukrinform.net/rubric-ato/4155812-one-step-away-from-terminators.html
1•rwmj•27m ago•0 comments

Ante: Self-contained coding agent that lives in your terminal and self-organizes

https://docs.antigma.ai/
1•Bluestein•28m ago•0 comments

Chinese robot runs 100M sprint quicker than Usain Bolt's world record

https://www.theguardian.com/sport/2026/aug/22/chinese-robot-runs-100m-sprint-quicker-usain-bolt-w...
5•bookofjoe•29m ago•3 comments

We Need a New Science of Progress (2019)

https://www.theatlantic.com/science/archive/2019/07/we-need-new-science-progress/594946/
2•ronfriedhaber•30m ago•0 comments

Official RC2014 repository for hardware schematics / software

https://github.com/RC2014Z80/RC2014
1•Bluestein•32m ago•0 comments

The New MCP Roadmap

https://blog.modelcontextprotocol.io/posts/mcp-roadmap/
4•pentagrama•37m ago•1 comments

Reading List Hotkey: Save Web Pages to Apple Reminders Using Shortcuts App

https://rdamodar.com.np/thought/2026/08/2026-08-22-reading-list-hotkey/
1•fhcxvbdb•40m ago•0 comments

Fine-Grained Shader Validation in Three.js

https://ben3d.ca/blog/fine-grained-shader-validation-in-threejs
1•bhouston•41m ago•0 comments

A Kantian Critique of "Sorry" by Justin Bieber

https://decodingvibes.com/blog/a-kantian-critique-of-sorry-by-justin-bieber/
29•altmanaltman•44m ago•4 comments

A Most Comfortable Dead End

https://monokai.com/articles/a-most-comfortable-dead-end/
2•monokai_nl•46m ago•0 comments

Font League – new website typography

https://fontleague.com/
4•stephenkelman_•48m ago•1 comments