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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: Flynt.js – 2.2kb, zero-build, CSP-safe reactivity library for MPAs

https://github.com/marsbos/flynt.js
1•bosmarcel•1m ago•0 comments

The Life and Death of Direct File

https://www.ischool.berkeley.edu/research/publications/2026/life-and-death-direct-file
1•ronbenton•3m ago•0 comments

Show HN: I built my 15-year-old game idea in a week with AI

2•ashitlerferad•6m ago•0 comments

Google's new watch tracks insulin resistance to flag diabetes risk

https://www.latimes.com/business/story/2026-08-13/googles-wearables-will-track-insulin-resistance...
2•brandonb•7m ago•0 comments

Quality by John Galsworthy

https://americanliterature.com/author/john-galsworthy/short-story/quality
1•lain98•7m ago•0 comments

Show HN: Meridian, a local-first work journal that drafts project updates

https://github.com/Meridiona/meridian/
1•adithyaharish•9m ago•0 comments

Lenire – Tinnitus Treatment Using Bimodal Stimulation

https://www.lenire.com/
1•Obscurity4340•9m ago•0 comments

Microsoft.Testing.Platform Crash-Resilient TRX

https://medium.com/c-sharp-programming/microsoft-testing-platform-crash-resilient-trx-e62f7cb6e16d
1•sukhpinder0804•10m ago•0 comments

Sectorforth is a 16-bit x86 Forth that fits in a 512-byte boot sector

https://github.com/cesarblum/sectorforth
2•sigalor•12m ago•0 comments

Show HN: Shippin.io – Your SaaS product deserves to be discovered

https://shippin.io
1•jayeshpadhiar•13m ago•1 comments

Gulf of Mexico is a perfect programming language

https://github.com/TodePond/GulfOfMexico
1•xiaoyu2006•15m ago•0 comments

I'm Creating a Minimal Dark Software Factory

https://joeldare.com/creating-a-minimal-dark-factory
1•codazoda•16m ago•0 comments

Atmo.rsvp is a decentralized events calendar built on the AT Protocol

https://portal.eurosky.tech/apps/3moebodfjt2oq
2•doener•16m ago•0 comments

Affix-io/SDK-light – PQC ML-DSA-65 Signing for proofs

https://www.npmjs.com/package/@affix-io/sdk-light
1•affixio•20m ago•0 comments

Show HN: The wanderer – cozy weekend game with no objective

1•freakynit•20m ago•0 comments

Loveyourclanker.org - Patterns of Agent Interaction

https://loveyourclanker.org/
2•javascriptmick•21m ago•2 comments

AI Can Guess Your Location from Social Media Photos with 87% to 91% Accuracy

https://www.macobserver.com/news/ai-can-guess-your-location-from-social-media-photos-with-87-to-9...
2•01-_-•23m ago•0 comments

Madrid hospital creates first bone metamaterial prosthesis

https://www.euronews.com/health/2026/08/15/madrid-hospital-creates-first-bone-metamaterial-prosth...
3•01-_-•23m ago•0 comments

Rcarmo/bun-packrat: Single-file web archive: SQLite-backed, self-contained HTML

https://github.com/rcarmo/bun-packrat
1•rcarmo•24m ago•0 comments

The Moviemaking Exodus from Hollywood

https://www.politico.com/news/magazine/2026/08/16/hollywood-film-production-illinois-tax-credits-...
2•RickJWagner•25m ago•1 comments

Show HN: The Gateless Gate – Ancient Zen text as 50 procedural 3D scenes

https://killedbyapixel.github.io/GatelessGate/
1•KilledByAPixel•26m ago•0 comments

'Fakers' by Rory Cormac Review

https://www.historytoday.com/archive/review/fakers-rory-cormac-review
1•pepys•27m ago•0 comments

Why is a local workout log a $5–16/month subscription?

https://www.gostay.fit
3•justastudent43•27m ago•0 comments

Show HN: I shrank DeepSeek V4 Flash to 57GB and it wrote a compiler on my Mac

https://huggingface.co/steadfastgaze/DeepSeek-V4-Flash-0731-Coder-56.8GB-MoEspressoV2
2•hacklas•29m ago•0 comments

AgentShield – Offline Rust security scanner for AI agent tools and MCP (<50ms)

https://github.com/aiconnai/agentshield
1•aiconnai•29m ago•0 comments

Founder.best launches a weekly newsletter for founders featuring new products

https://www.founder.best
1•anujshashimal12•30m ago•0 comments

Late-night-regrets – piclaw addon for agent self-correction

https://rcarmo.github.io/piclaw-addons/addons/late-night-regrets/
1•rcarmo•30m ago•0 comments

In praise of designer-ish babies

https://www.economist.com/leaders/2026/08/13/in-praise-of-designer-ish-babies
2•Anon84•31m ago•0 comments

Ordinary WiFi can now identify you with near-perfect accuracy

https://www.sciencedaily.com/releases/2026/08/260811052857.htm
10•jonbaer•32m ago•3 comments

3D Printing State of the Union

https://taoofmac.com/space/blog/2026/08/06/1700
1•rcarmo•34m ago•0 comments