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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•9mo 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!

Defense contractors removing Anthropic's AI after Trump ban

https://www.reuters.com/sustainability/society-equity/defense-contractors-like-lockheed-seen-remo...
1•alephnerd•1m ago•0 comments

Fubar Daily – Dystopian news for a jaded generation

https://www.fubardaily.com
1•anonnona8878•1m ago•1 comments

Intel Nova Lake-Ax for Local LLMs – Rumored AMD Strix Halo Competitor (2025)

https://www.hardware-corner.net/intel-nova-lake-ax-local-llms/
1•walterbell•3m ago•0 comments

A rabbi is overseeing Pornhub. That's not so weird – The Forward

https://forward.com/culture/654804/pornhub-rabbi-solomon-friedman-jewish/
1•vinnyglennon•4m ago•0 comments

Show HN: Ukcalculator.com – Free UK tax, salary and mortgage calculators

https://ukcalculator.com/
1•mystart•5m ago•0 comments

Show HN: AgentBus – Centralized AI Agent-to-Agent Messaging via REST API

https://agentbus.org/
2•notepstein•6m ago•0 comments

QuarterBit – Train 70B LLMs on a single GPU

https://quarterbit.dev
2•quarterbit•9m ago•2 comments

Show HN: AI agent that trades Polymarket by hiring inference via Lightning

https://trader.lpxpoly.com
2•LightProx•11m ago•0 comments

Show HN: I built a S3 proxy that combines storage from S3/clouds into one target

https://github.com/afreidah/s3-orchestrator
2•munch-o-man•12m ago•0 comments

Iranian Number Station

https://www.iz0kba.it/en/iranian-number-station/
3•pabs3•13m ago•0 comments

OB-1

https://www.openblocklabs.com/
2•handfuloflight•13m ago•0 comments

Free software needs free tools

https://lwn.net/SubscriberLink/1060649/f0e94c3b1b4fe3bc/
3•pabs3•14m ago•0 comments

Cybersecurity and Ethical Hacking Cheatsheets

https://github.com/Ilias1988/Hacking-Cheatsheets
3•Ilias1988•15m ago•1 comments

Accenture down to buy Downdetector as part of $1.2B deal

https://www.theregister.com/2026/03/03/accenture_buys_ookla_downdetector_ziff_davis/
3•cebert•17m ago•0 comments

Tectonic good project plan: Please read

2•fourwindsoh•17m ago•1 comments

TikTok won't protect DMs with E2EE, saying it would put users at risk

https://www.bbc.com/news/articles/cly2m5e5ke4o
2•1659447091•18m ago•0 comments

2,218 Gary Marcus AI claims scored against evidence (dataset)

https://github.com/davegoldblatt/marcus-claims-dataset
26•davegoldblatt•18m ago•4 comments

The largest acidic geyser has been putting on quite a show

https://www.usgs.gov/observatories/yvo/news/echinus-geyser-back-action-now
2•1659447091•22m ago•0 comments

The Xkcd thing, now interactive, as jenga blocks

https://jenga.symploke.dev/
2•thomasfromcdnjs•24m ago•0 comments

Help us test WEBCAT alpha

https://securedrop.org/news/webcat-alpha/
2•ahlCVA•26m ago•0 comments

Bankster: Money as Data

https://github.com/randomseed-io/bankster
2•PaulHoule•26m ago•0 comments

Show HN: Augur – A text RPG boss fight where the boss learns across encounters

https://www.theaugur.ai/
3•thutch76•29m ago•1 comments

AgentMail Now Supports X402

https://twitter.com/agentmail/status/2028893166506787270
2•obulbo•29m ago•1 comments

Progressive Disclosure CLI for OpenAPI

https://github.com/OpenScribbler/phyllotaxis
2•mlhpdx•32m ago•0 comments

Show HN: A leadership 360 survey for startup founders: feedback please

https://org360.app/surveys/startup-founder-360
2•ddesposito•36m ago•1 comments

Python Package Uses a PRNG-Like Algorithm to Create Tokenized Infinite Data

https://github.com/stateshaper/stateshaper/tree/old_main
2•jaygeorgedunn•37m ago•0 comments

The 'Anything-but-Solar' Trade Is the Future of Solar

https://www.bloomberg.com/opinion/articles/2026-03-03/the-anything-but-solar-trade-is-the-future-...
2•petethomas•39m ago•0 comments

Show HN: OpenClawHub – A Lib for AI agent workflows so you don't have to

https://openclawhub.uk/
2•951560368•39m ago•0 comments

Critical Authentication Bypass in Pac4j-JWT – Using Only a Public Key

https://www.codeant.ai/security-research/pac4j-jwt-authentication-bypass-public-key
3•Brajeshwar•44m ago•0 comments

Show HN: DubTab – Live AI Dubbing in the Browser (Meet/YouTube/Twitch/etc.)

https://dubtab.com/
3•DanielHu87•45m ago•1 comments