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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•1y 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!

Desk - Munder Difflin, but bare-bones

https://github.com/burvy/desk/releases/tag/Release
1•burvy•10m ago•0 comments

Og.video – generate og:video tags that make iMessage previews fun [free/OSS]

https://og.video/
1•bookernath•20m ago•0 comments

Show HN: An open-source office suite with built-in MCP

https://github.com/freeflow-im/mcp-docs
1•scottpersinger•22m ago•0 comments

What are vector embeddings? An interactive guide

https://isaacus.com/blog/what-are-vector-embeddings
1•ubutler•27m ago•0 comments

A few seconds of loading time can push online learners off track

https://phys.org/news/2026-10-seconds-online-learners-track.html
1•santiago-pl•30m ago•0 comments

Show HN: Twigg Free and Open Source Centralized VCS

https://twigg.vc/
1•andrebianchessi•38m ago•0 comments

What Happened to the Internet? [video]

https://www.youtube.com/watch?v=E2AoYIKwJqM
1•qingcharles•41m ago•0 comments

Tesla cancels Cybertruck in Australia and NZ after 7 years of deposits

https://electrek.co/2026/10/23/tesla-cancels-cybertruck-australia-new-zealand/
3•MilnerRoute•43m ago•0 comments

CleanYourTV : Debloat Any Android or Google TV over Wi-Fi

https://github.com/Gathin23/cleanyourtv
1•saikatsg•44m ago•1 comments

Vibe coding is turning the music gear world upside down

https://www.theverge.com/gadgets/1013493/vibe-coding-ai-music-gear-hacking-custom-firmware
3•saikatsg•50m ago•0 comments

Zen Browser is the Arc replacement I was looking for

https://www.theverge.com/tech/1018275/zen-browser-arc-replacement
2•saikatsg•51m ago•1 comments

Decompressible Oracle Generators

https://gertlabs.com/blog/decompressible-oracle-generators
2•gertlabs•54m ago•0 comments

There's never any reason for a committee to set rates

https://gist.github.com/mxfactorial/d9451142ad2037d82d926e5c59d9a06d
1•mxfactorial•1h ago•0 comments

Just Dashboard open-source dashboard for managing your VPS

https://github.com/JustDashboard/Just-Dashboard
1•Wayy10•1h ago•0 comments

A New India Is Here, and It Wants to Make Things

https://www.corememory.com/p/a-new-india-is-here
1•dsr12•1h ago•0 comments

SS United States to be sunk as largest artificial reef

https://divemagazine.com/scuba-diving-news/ss-united-states-to-be-sunk-as-worlds-largest-artifici...
3•geox•1h ago•2 comments

Local-first video production workspace for people and AI agents

https://github.com/TriHerm/cutmark
3•jev-yeb•1h ago•0 comments

Failure Modes

https://www.autodidacts.io/failure-modes/
5•Curiositry•1h ago•0 comments

RSS Vault – a curated directory of RSS feeds

https://rssvault.org
2•Curiositry•1h ago•0 comments

Exploring Thurston geometries

https://www.3-dimensional.space/
1•marysminefnuf•1h ago•0 comments

Closing the Sea: Lessons from Ancient Mediterranean Blockades

https://maritime-executive.com/editorials/closing-the-sea-lessons-from-ancient-mediterranean-bloc...
2•gumby•1h ago•0 comments

An Invisible Spirit

https://animationobsessive.substack.com/p/an-invisible-spirit
3•vinhnx•1h ago•0 comments

Trace the footsteps of England's most famous accused witches

https://www.bbc.com/travel/article/20261023-the-haunting-landscapes-of-englands-accused-witches
1•1659447091•1h ago•0 comments

Can a good philsophical contribution be made just by asking a question? (2022)

https://philpapers.org/rec/HABCAG
2•schoen•1h ago•0 comments

The Tesla-SpaceX merger explained

https://finshots.in/archive/tesla-spacex-merger-explained/
2•vismit2000•1h ago•0 comments

Show HN: Proc-CLI – An agent-friendly CLI tool for process and port management

https://proc-cli.com/
4•yazeedaloyoun•1h ago•0 comments

Minecraft: Java Edition 26.3 rewritten from scratch in Rust

https://github.com/ludovic111/horizon
1•privacyishuman•1h ago•0 comments

Cognitive Mercantilism: AI panic resembles fears of early capitalism

https://contraptions.venkateshrao.com/p/cognitive-mercantilism
4•ianand•1h ago•0 comments

Show HN: How religions evolved? Charts, Maps, Citations

https://howitevolved.com/chart/
2•silly073•1h ago•0 comments

Domain UserMemory.com now available on Spaceship

https://usermemory.com
1•dev1one1•1h ago•0 comments