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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•8mo 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!

Optofluidic three-dimensional microfabrication and nanofabrication

https://www.nature.com/articles/s41586-025-10033-x
1•bookofjoe•41s ago•0 comments

Show HN: Zerobrew – Alternative to Homebrew

https://github.com/lucasgelfond/zerobrew
1•worldsavior•1m ago•0 comments

Commission trials European open source communications software

https://www.euractiv.com/news/commission-trials-european-open-source-communications-software/
1•mindracer•1m ago•0 comments

Wirth's Revenge

https://jmoiron.net/blog/wirths-revenge/
1•todsacerdoti•2m ago•0 comments

Making Ferrite Core Inductors at Home

https://danielmangum.com/posts/making-ferrite-core-inductors-home/
1•hasheddan•4m ago•0 comments

Properly securing OpenClaw with authentication

https://www.haproxy.com/blog/properly-securing-openclaw-with-authentication
2•owenthejumper•7m ago•0 comments

Open Source, Python and AI Are Shaping the Data Future (With Wes McKinney) [video]

https://www.youtube.com/watch?v=SMgUDZ9xkHM
1•tosh•8m ago•0 comments

Show HN: Prvue – Self-managed preview environments for back end apps

1•dan_le_brown•10m ago•0 comments

Ax for Browser Automation Platforms: Browserless vs. Browserbase vs. Anchor

https://techstackups.com/comparisons/browserless-vs-browserbase-vs-anchor-agent-experience/
1•sixhobbits•10m ago•0 comments

Show HN: Prvue – Self-managed preview environments for back end apps

https://docs.prvue.dev
1•dan_le_brown•12m ago•0 comments

Refuge, Signals, and the Things We Forgot

https://aleger.substack.com/p/refuge-signals-and-the-things-we
1•aleger•17m ago•0 comments

Easily write Bash with a transpiler [video]

https://fosdem.org/2026/schedule/event/GGLZS9-amber-lang-bash-transpiler/
1•birdculture•18m ago•0 comments

Claude Is a Space to Think

https://www.anthropic.com/news/claude-is-a-space-to-think
3•meetpateltech•18m ago•1 comments

The Maintenance of Everything

https://www.stripe.press/maintenance
2•MintyPyro•20m ago•0 comments

Show HN: OpenShears – I built an uninstaller because OpenClaw refuses to die

https://github.com/oswarld/openshears
1•haebom•20m ago•0 comments

The missed incident priority: The Near Miss

https://jensrantil.github.io/posts/near-miss-incidents/
1•JensRantil•21m ago•0 comments

Adobe Won't Discontinue Animate

https://www.theverge.com/tech/873621/adobe-animate-maintenance-mode-reverse-course
3•tambourine_man•23m ago•1 comments

Show HN: GitScrum – Full project management inside VS Code/Cursor/Windsurf

https://marketplace.visualstudio.com/items?itemName=gitscrum-vscode.gitscrum-vscode
1•renatomarinho•26m ago•0 comments

Understanding the Keep4o Backlash

https://arxiv.org/abs/2602.00773
1•50kIters•26m ago•0 comments

TonyPitony, Brain Rots, 67

https://poplit.hcommons.org/2026/02/03/tonypitony-brain-rots-67-contemporary-dada-and-our-rejecti...
2•jruohonen•27m ago•0 comments

Yarn 6 Preview

https://yarn6.netlify.app/blog/2026-01-28-yarn-6-preview/
1•vidyesh•27m ago•0 comments

Guthman Musical Instrument Competition (2026 Finalists)

https://guthman.gatech.edu/2026-finalists
1•latexr•29m ago•0 comments

The myth of the free market (2020)

https://www.nationofchange.org/2020/01/24/the-myth-of-the-free-market/
1•robtherobber•30m ago•0 comments

DayFlow: A Full Calendar Component for React

https://dayflow-js.github.io/calendar/
1•vidyesh•32m ago•0 comments

The Ghidra Book, 2nd edition

https://nostarch.com/ghidra-book-2e
1•0x54MUR41•32m ago•0 comments

China bans hidden car door handles, which can trap people after crashes

https://www.npr.org/2026/02/03/nx-s1-5698224/china-electric-car-door-handles
2•geox•32m ago•0 comments

Awesome Codex Automations

https://github.com/onurkanbakirci/awesome-codex-automations
1•onurkanbkrc•35m ago•0 comments

UN Open Sourcre Week 2026

https://www.unopensource.org/
3•jruohonen•36m ago•0 comments

The SpaceX mega merger boosts the Musk trade

https://finance.yahoo.com/news/the-spacex-mega-merger-boosts-the-musk-trade-110026592.html
1•01-_-•38m ago•0 comments

We Are the Art; Brandon Sanderson's Keynote [video]

https://www.youtube.com/watch?v=mb3uK-_QkOo
2•simplegeek•38m ago•0 comments