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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!

A Brief History of Oral Peptides

https://seangeiger.substack.com/p/a-brief-history-of-oral-peptides
1•odedfalik•1m ago•0 comments

Sixteen Claude AI agents working together created a new C compiler

https://arstechnica.com/ai/2026/02/sixteen-claude-ai-agents-working-together-created-a-new-c-comp...
1•smurda•1m ago•0 comments

Can a pile of poop find PMF?

1•karrycarryall•2m ago•0 comments

Composer 1.5

https://forum.cursor.com/t/introducing-composer-1-5/151347
2•altertable•2m ago•0 comments

The Anthropic Hive Mind

https://steve-yegge.medium.com/the-anthropic-hive-mind-d01f768f3d7b
1•gmays•5m ago•0 comments

The Sling: Humanity's Forgotten Power

https://www.slinging.org/
1•jsattler•10m ago•1 comments

Noam Chomsky, Jeffrey Epstein and the Politics of Betrayal

https://chrishedges.substack.com/p/noam-chomsky-jeffrey-epstein-and
2•chmaynard•11m ago•0 comments

Why securing AI model weights isn't enough

https://www.the-substrate.net/p/why-securing-ai-model-weights-isnt
1•erwald•11m ago•0 comments

Cursor Composer 1.5

https://cursor.com/blog/composer-1-5
6•leerob•13m ago•1 comments

Stop Telling Users Their DNS Is Wrong

https://jacob.gold/posts/stop-telling-users-their-dns-is-wrong/
2•jacobgold•13m ago•0 comments

Show HN: Voice Legacy: AI that interviews your parents before it's too late

https://www.voicelegacy.app
1•blacksausage•13m ago•1 comments

Have the patents for H.264 MPEG-4 AVC expired yet?

https://meta.wikimedia.org/wiki/Have_the_patents_for_H.264_MPEG-4_AVC_expired_yet%3F
2•Velocifyer•15m ago•0 comments

The Great Displacement: AI and the Next Fifty Years

https://drive.google.com/file/d/1nm0wOCJJvGS0WI737XHJ7VVDkjQrbgXf/view
1•sideway•16m ago•0 comments

GitButler CLI Is Good

https://matduggan.com/gitbutler-cli-is-really-good/
1•weaksauce•16m ago•0 comments

Modern Keystroke Visualizer for Linux

https://github.com/linuxmobile/keystroke
1•lwhsiao•17m ago•0 comments

AskHN: Is Auth0 Down Again?

2•jansan•17m ago•0 comments

Strengthening Windows trust and security through User Transparency and Consent

https://blogs.windows.com/windowsexperience/2026/02/09/strengthening-windows-trust-and-security-t...
1•pentagrama•19m ago•0 comments

Paragraphic – Parametric graphic design app made in Godot

https://paragraphic.design/
1•count_zero•21m ago•0 comments

Ask HN: I experienced an Attack on Telegram and simcards gone!!!

2•khoobid_shoma•23m ago•0 comments

Ask HN: Any good open source projects written by AI agents?

2•grillorafael•23m ago•0 comments

European Processor Initiative

https://www.european-processor-initiative.eu/project/epi/
2•Gravityloss•24m ago•0 comments

Show HN: Linkpreview.io – Debug and preview social share cards

https://linkpreview.io
1•ravikmd•24m ago•0 comments

The power of anime: using anime for education and outreach in STEM

https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2025.1707055/full
2•PaulHoule•26m ago•0 comments

German patent classified as state secret

https://zenodo.org/records/18551454
2•nAOpx•26m ago•1 comments

Show HN: MumbleFlow – $5 local voice-to-text (whisper.cpp, Rust, no cloud)

https://mumble.helix-co.com
2•mumbleflow•26m ago•0 comments

Hims cancels plans to sell compounded GLP-1 pill after FDA backlash

https://www.biopharmadive.com/news/hims-stop-launch-compounded-wegovy-fda-novo/811662/
2•randycupertino•26m ago•2 comments

Regime-Declared Mathematics as Survivor Sets

https://zboralski.github.io/br/maths/index.html
1•kugutsumen•27m ago•0 comments

National data, local stories: ICE detention in 2026

https://exclav.es/2026/02/08/exploring-ice-detention-facilities/
2•ai_critic•27m ago•1 comments

Is AI the Paperclip?

https://www.newcartographies.com/p/is-ai-the-paperclip
3•headalgorithm•31m ago•0 comments

AGI/Singularity: 9,300 Predictions Analyzed

https://research.aimultiple.com/artificial-general-intelligence-singularity-timing/
1•hakkikonu•32m ago•0 comments