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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!

Clerk

https://clerk.vision/
1•tosh•45s ago•0 comments

Firm Data on AI

https://www.nber.org/papers/w34836
1•mychaelangelo•57s ago•0 comments

Final step to put new website into production deleted it instead

https://www.theregister.com/2026/02/16/who_me/
3•jethronethro•3m ago•0 comments

10 years building vertical software: are we cooked?

https://twitter.com/nicbstme/status/2023501562480644501
1•nbstme•6m ago•0 comments

Show HN: ZIT: Zooplankton Image Tool for 2d rendering of biological locomotion

https://github.com/juleshenry/zooplankton-image-tool
1•juleshenry•6m ago•0 comments

After all the hype, some AI experts don't think OpenClaw is all that exciting

https://techcrunch.com/2026/02/16/after-all-the-hype-some-ai-experts-dont-think-openclaw-is-all-t...
1•zerosizedweasle•6m ago•0 comments

Show HN: I built an all-in-one workspace for agencies and freelancers

https://www.7desk.io
1•syketdas•6m ago•1 comments

Software Archeology in 2026

https://xav.io/blog/software-archeology/
1•xavxav•7m ago•0 comments

Kim Dotcom says Palantir allegedly hacked

https://twitter.com/KimDotcom/status/2023165849721536672
4•hooch•8m ago•0 comments

Dutch Government Claude Plugins

https://github.com/MinBZK/overheid-claude-plugins
1•GeertJohan•8m ago•0 comments

Software licensing and my opposition to copyleft

https://github.com/BurntSushi/notes/blob/fae52f03a655c1294226482d4ddd70c55cf62af3/2020-10-29_lice...
2•akktor•8m ago•0 comments

Show HN: LLMFeeder – Multi-tab web to Markdown for LLM context (v2.1.0)

1•jatinkrmalik•9m ago•0 comments

Sl − display animations to correct users who accidentally enter sl instead of ls

https://man.cx/sl%286%29
1•jjmarr•9m ago•0 comments

Show HN: TaxPal – Free tax calculator for 1099 freelancers (Q1 due April 15)

https://taxpal-kappa.vercel.app
1•greenbelt-dev•12m ago•0 comments

Show HN: Vocalinux // 100% offline voice typing for Linux

https://vocalinux.com/
1•jatinkrmalik•12m ago•0 comments

Show HN: NabavkiData – AI that detects corruption in public procurement

https://www.nabavkidata.com
2•proofkit•13m ago•1 comments

Ten Maps of Greenland

https://mhinfographics.github.io/funtography/18.html
1•gmays•15m ago•0 comments

I built a WhatsApp Status Saver that uses fewer ads than competitors

https://play.google.com/store/apps/details?id=com.appgenstudio.wa_status_saver_2026&hl=en_US
1•appzenstudioo•17m ago•1 comments

Amazon Mired in Longest Losing Streak Since 2006 on Capex Angst

https://www.bloomberg.com/news/articles/2026-02-13/amazon-eyes-longest-losing-streak-since-2006-o...
1•1vuio0pswjnm7•17m ago•0 comments

Slow, Then Suddenly

https://frantic.im/suddenly/
1•speckx•18m ago•0 comments

Dola-Seed-2.0-Preview debuts at #6 on arena.ai

https://seed.bytedance.com/en/blog/dola-seed-2-0-preview-model-release-on-arena
1•elahieh•19m ago•0 comments

Cartography Now Maps Permissions Across All 3 Clouds: My LFX Mentorship Journey

https://cartography.dev/blog/gcp-and-azure-rpr
1•alexchantavy•22m ago•0 comments

Show HN: Sira,an AI native flight booking experience

https://www.travelwithsira.com/
1•malwaregeeeek•23m ago•0 comments

German Social Democrat paper adds to calls for social media curbs for children

https://www.reuters.com/sustainability/society-equity/german-social-democrat-paper-adds-calls-soc...
1•1vuio0pswjnm7•24m ago•0 comments

Did We See a Black Hole Explode in 2025? [video]

https://www.youtube.com/watch?v=sbqrjBZwgLQ
1•jmward01•24m ago•0 comments

Microscope super-resolution with an LED array and Fourier Ptychography [video]

https://www.youtube.com/watch?v=9KJLWwbs_cQ
2•newpavlov•25m ago•0 comments

I Language

https://github.com/IbrahimHindawi/I
1•VoidLegend•25m ago•1 comments

Should Drug Companies Be Advertising to Consumers?

https://www.nytimes.com/2026/02/16/health/drug-advertisements-consumers.html
5•shpat•25m ago•1 comments

Unexplained 217K visits to my website. HOW?

1•ClaudeGustav2•26m ago•1 comments

The Economics of LLM Inference

https://mlechner.substack.com/p/the-economics-of-llm-inference-batch
3•armcat•26m ago•0 comments