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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!

Copy-left open-source license for AI code use

2•program_whiz•3m ago•0 comments

Are We Becoming Architects or Butlers to LLMs?

http://muratbuffalo.blogspot.com/2026/02/butlers-or-architects.html
2•cstever•4m ago•0 comments

Show HN: Resonant – Local-only speech-to-text for macOS (no cloud)

https://www.onresonant.com/
1•sourcetms•6m ago•0 comments

Unicode Homoglyph Path Injection in Chromium Native Messaging

https://treechain.ai/white-papers/unicode-homoglyph-path-injection-in-chromium-native-messaging/
1•treechain•7m ago•0 comments

BrowserPod: Universal in-browser sandbox powered by WASM (starting with Node.js)

https://labs.leaningtech.com/blog/browserpod-10
1•apignotti•8m ago•0 comments

Effects of a Modular Sleep System on Sleep Quality and Physiological Stability

https://www.mdpi.com/2076-3417/16/3/1194
1•PaulHoule•8m ago•0 comments

Show HN: SharpSkill – I Gamified a LeetCode-like tool to crush Tech Interviews

https://sharpskill.fr/en
1•CocoZozo•9m ago•0 comments

Tell HN: We analyzed our dev time.80% is still infrastructure'setup',notfeatures

3•thesssaism•10m ago•0 comments

Show HN: Rebrain.gg – Doom learn, don't doom scroll

4•FailMore•12m ago•0 comments

We're Measuring DataCenter Sustainability Wrong, Metrics Are 30% of Emissions

https://spectrum.ieee.org/data-center-sustainability-metrics
2•oldnetguy•12m ago•0 comments

Tell HN: Technical debt isn't messy code, it's architectural compound interest

2•thesssaism•13m ago•0 comments

Microsoft says bug causes Copilot to summarize confidential emails

https://www.bleepingcomputer.com/news/microsoft/microsoft-says-bug-causes-copilot-to-summarize-co...
2•tablets•14m ago•1 comments

Show HN: Disco Checkers

https://github.com/maxpblum/disco_checkers
2•mrblampo•16m ago•0 comments

Microsoft pledges $50B to tackle growing AI inequality

https://www.cnn.com/2026/02/18/business/ai-impact-summit-microsoft-inequality-investment
2•heresie-dabord•17m ago•0 comments

Show HN: Agent Panopticon – Proxy sidecar for autonomous AI agents

https://github.com/raka-gunarto/agent-panopticon
2•rakag•17m ago•0 comments

Most VMware users still "actively reducing their VMware footprint," survey finds

https://arstechnica.com/information-technology/2026/02/most-vmware-users-still-actively-reducing-...
2•oldnetguy•19m ago•0 comments

GameHub will give Mac owners another imperfect way to play Windows games

https://arstechnica.com/gaming/2026/02/gamehub-will-give-mac-owners-another-imperfect-way-to-play...
2•oldnetguy•21m ago•0 comments

AI Pharmacist

https://personalchemist.com/
2•SalmanChishti•21m ago•0 comments

Re-Defining the 'Agentic Web'

https://medium.com/data-science-collective/re-defining-the-agentic-web-cfeb49e0d4e7
2•iamflimflam1•22m ago•0 comments

BoltAI • Native, high-performance AI app for Mac

https://boltai.com/
2•janandonly•22m ago•0 comments

The decline of single-earner housebuyers in America

https://www.economist.com/united-states/2026/02/12/the-decline-of-single-earner-housebuyers-in-am...
4•jcartw•25m ago•1 comments

Nobody knows what programming will look like in two years

https://leaddev.com/ai/nobody-knows-what-programming-will-look-like-in-two-years
3•chhum•27m ago•0 comments

Show HN: CertWarden – SSL certificate monitoring app for iOS

https://apps.apple.com/us/app/certwarden/id6759068656
2•ismailperim•27m ago•0 comments

Quantlix – Deploy AI models instantly without managing infrastructure

https://www.quantlix.ai/
2•jensenjesper•29m ago•1 comments

Tokamak fusion reactor turns mercury into gold

https://newatlas.com/science/fusion-reactors-put-king-midas-shame-gold-department/
2•mgh2•30m ago•0 comments

Show HN: An AI interviewer that probes candidates (and costs $0.99/interview)

https://interviewflowai.com/
2•mukulmunjal•31m ago•1 comments

Modern dating has a new double standard: what AI is doing to online dating

https://www.washingtonpost.com/opinions/interactive/2026/dating-app-ai-profile-refiner-bumble/
2•harambae•33m ago•0 comments

Update on Hackmyclaw.com

https://twitter.com/Cucho/status/2024090215011291320
1•cuchoi•34m ago•0 comments

Read Letters from the Children Detained at ICE's Dilley Facility

https://www.propublica.org/article/ice-dilley-children-letters
3•throw0101c•34m ago•0 comments

AI Agent Standards Initiative

https://www.nist.gov/caisi/ai-agent-standards-initiative
1•keepamovin•35m ago•0 comments