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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•7mo 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!

Operation Bluebird to relaunch "Twitter," says Musk abandoned the name and logo

https://arstechnica.com/information-technology/2025/12/can-twitter-fly-again-startup-wants-to-pry...
1•pathompong•45s ago•0 comments

Ask HN: Is 13" MacBook good enough without an external monitor?

1•ShahinSorkh•1m ago•0 comments

Fastest way for analysts to ship data pipelines – safely

https://www.youtube.com/watch?v=WKVxgCrwQHw
1•adadu2•1m ago•1 comments

Suno Is Changing Music's Future: Thoughts on the AI Music Generator

https://micahblachman.beehiiv.com/p/suno-is-changing-music-s-future
1•subdomain•4m ago•0 comments

Publishing KOReader Highlights

https://tech.stonecharioteer.com/posts/2025/kollector/
1•stonecharioteer•5m ago•0 comments

Show HN: Calamari – single-host restrictive proxy (with squid)

https://github.com/n0id/calamari
1•calamari-proxy•7m ago•0 comments

Google Maps on iOS now remembers where you parked

https://mashable.com/article/google-maps-parking-remember-spot
2•gniting•9m ago•1 comments

Building a Self-Hosted CDN for BSD Cafe Media

https://it-notes.dragas.net/2024/08/26/building-a-self-hosted-cdn-for-bsd-cafe-media/
1•gpi•9m ago•0 comments

"restart on excessive memory usage" experiment: discordapp

https://old.reddit.com/r/discordapp/comments/1pej7l7/restart_on_excessive_memory_usage_experiment/
1•speckx•10m ago•0 comments

Can NASA Bring Mars Rocks Back to Earth?

https://www.scientificamerican.com/podcast/episode/can-nasa-bring-mars-rocks-back-to-earth/
1•quapster•13m ago•0 comments

Vix dev Auto-reload and rebuild loop for C++ applications

https://vixcpp.com
1•gkirira•16m ago•1 comments

Ask HN: Outstanding packets calculation in Go-Back-N ARQ when ACK lost?

1•shivajikobardan•17m ago•0 comments

Ask HN: How can I learn smartphone repair online?

2•rishikeshs•20m ago•0 comments

Boom Superpower: The Supersonic Tech Powering AI Data Centers

https://boomsupersonic.com/superpower
3•embedding-shape•22m ago•0 comments

Show HN: AI that writes reports while your Team codes

https://www.gitmore.io/
1•hamadev•23m ago•0 comments

Show HN: WireTyped – typed, error-first HTTP client for fetch

https://github.com/kasperrt/wiretyped
1•kasperrt•24m ago•0 comments

Interactive Network Learning Platform

https://packet.school
2•r1z4•25m ago•0 comments

Warner Bros Bidding War: Lessons on Aggregator Theory and Hostile Deal Mechanics

https://philippdubach.com/2025/12/09/not-logan-roy-netflix-vs.-paramounts-bidding-war/
5•7777777phil•26m ago•1 comments

Font of 'wasteful' diversity: State Department orders return to Times New Roman

https://www.theguardian.com/us-news/2025/dec/10/trump-times-new-roman-font-return-state-department
1•bux93•26m ago•3 comments

What Is App Thinning

https://help.apple.com/xcode/mac/current/#/devbbdc5ce4f
2•andsoitis•30m ago•1 comments

Jujutsu and Claude Code

https://slavakurilyak.com/posts/use-jujutsu-not-git
1•swah•30m ago•0 comments

'Breathing' robots reveal how fear spreads through touch

https://medicalxpress.com/news/2025-11-robots-reveal.html
2•PaulHoule•32m ago•0 comments

Americans to Buy into Carvana Fraud

https://tickerfeed.net/articles/carvana-is-cooking-the-books
2•sethops1•33m ago•1 comments

McDonald's pulls AI Christmas ad after backlash

https://www.bbc.co.uk/news/articles/czdgrnvp082o
15•mindracer•34m ago•8 comments

A quick theory of system complexity

https://federicopereiro.com/quick-complexity/
1•swah•34m ago•0 comments

Bugonia and the Intelligence Trap

https://nchafni.substack.com/p/bugonia-and-the-intelligence-trap
1•xngbuilds•36m ago•0 comments

The Most Common Bad Argument in These Parts

https://www.lesswrong.com/posts/arwATwCTscahYwTzD/the-most-common-bad-argument-in-these-parts
1•surprisetalk•36m ago•0 comments

The Book. The Ultimate Guide to Rebuilding Civilization

https://global.hungryminds.com/products/the-book
1•surprisetalk•37m ago•0 comments

I Contended in the Parallel Parking Championship

https://www.caranddriver.com/features/a69137759/parallel-parking-championship/
1•surprisetalk•37m ago•0 comments

MCP Proxies: Enterprise Control with Virtual MCPs

https://glama.ai/blog/2025-12-09-model-context-protocol-proxies-enabling-enterprise-control-with-...
1•OmShree0709•38m ago•0 comments