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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!

Nate Parrott's dopamine-crushing metrics-driven site

https://nateparrott.com/
1•hmokiguess•2m ago•0 comments

Mad 2.0: Mutually Assured Disruption

https://www.thoughtmerchants.com/opinion/mad-2-0-mutually-assured-disruption
1•deltamidway•3m ago•0 comments

Brookmd – streaming Markdown renderer in Rust (web, RN, Swift and more)

https://github.com/siinghd/brookmd
1•siinghd•5m ago•0 comments

What Role Does Wildfire Smoke Play on Radio Signals?

https://www.radioworld.com/tech-and-gear/nicks-signal-spot/what-role-does-wildfire-smoke-play-on-...
2•RF_Enthusiast•7m ago•0 comments

Open pricing dataset for the Seedance 2.0 API, across 16 vendors

https://useapi.net/docs/articles/seedance-2-api-pricing
1•useapi•7m ago•0 comments

Zenoh Reliability, Scalability and Congestion Control

https://zenoh.io/blog/2021-06-14-zenoh-reliability/
1•Kinrany•7m ago•0 comments

IDEs are done, and they are not coming back

https://cpojer.net/notes/not-coming-back
1•coloneltcb•13m ago•0 comments

Ask HN: Apple Is Broken?

4•dogomatic•13m ago•0 comments

Show HN: Faceblind – In-browser only video face blurring

https://kmcheung12.github.io/faceblind/
1•a_c•14m ago•0 comments

Show HN: Reachpad – Run all your coding agents from anywhere from the browser

https://reachpad.dev/
2•sakuraiben•14m ago•1 comments

Show HN: A platform for objective developer skill assessment (MVP)

https://skillhacker.io/
1•vitalyobolensky•15m ago•0 comments

Viral syncytia help SARS-CoV-2 evade interferon and antibodies

https://www.nature.com/articles/s41467-026-74676-8
1•thenerdhead•16m ago•0 comments

Gemini last models: temperature, top_p, and top_k are deprecated and ignored

https://ai.google.dev/gemini-api/docs/latest-model
1•greatgib•19m ago•1 comments

Seance: Human first, agent friendly. Tiling terminal+ workspaces (Rust+GPUI)

https://github.com/zackham/seance
1•zackham•19m ago•0 comments

The Gates Foundation met with Epstein about 30 times despite staff concerns

https://apnews.com/article/bill-gates-foundation-jeffrey-epstein-files-798b07999092aae601eae11a8e...
6•Teever•20m ago•0 comments

Show HN: Machinations – a multiplayer strategy game where LLM is the game master

https://machinations.tpk.gg/
1•jklewis•20m ago•0 comments

Extending Polars with Rust Expression Plugins

https://fenic.ai/blog/extending-polars-with-rust-expression-plugins
1•cpard•20m ago•0 comments

Legacy Is About Context

https://join.tech/blog/2026-0x15-legacy-is-about-context.php
1•5n00py•20m ago•0 comments

India's first privately developed rocket reaches low earth orbit in debut launch

https://arstechnica.com/space/2026/07/indias-first-privately-developed-rocket-reaches-orbit-on-dr...
1•darth_avocado•23m ago•0 comments

Wolves, Sheep, and Gypsies

https://world.hey.com/dhh/wolves-sheep-and-gypsies-ba44af6a
4•fratellobigio•24m ago•0 comments

Show HN: StarSkew, a privacy-light Amazon review analyzer (starskew.com)

https://starskew.com/
1•KETpXDDzR•27m ago•0 comments

May 2, 1960: Dick Clark survives the Payola scandal

https://www.history.com/this-day-in-history/may-2/dick-clark-survives-the-payola-scandal
1•petethomas•27m ago•0 comments

Show HN: I built a chat client that uses embeddings to cluster messages by topic

https://llmtrail.com/demo
1•doantam•27m ago•0 comments

Don't Make the Same Mistake as Me [video]

https://www.youtube.com/watch?v=0F5zG1RQ4Ig
1•fenced_load•28m ago•0 comments

Open Source AI Harness Profiler – discover where tf your tokens are going

https://github.com/TryRekon/Rekon
1•TreDub•29m ago•1 comments

Show HN: RockCode an unofficial vibe-coded macOS client for Grok CLI

https://github.com/natanavra/rockcode
1•natanavra•29m ago•0 comments

AMD's Jerry Sanders, Silicon Valley's tough guy (2001)

https://www.sfgate.com/bayarea/article/PROFILE-Jerry-Sanders-Silicon-Valley-s-tough-2873326.php
2•stmw•30m ago•0 comments

Where should you move for higher pay?

https://economist.com/graphic-detail/2026/07/21/where-should-you-move-for-higher-pay
2•andsoitis•32m ago•0 comments

So Let It Be

https://soletitbe.dev/
1•stoke7143•33m ago•0 comments

Ask HN: Post active but comments got flagged

1•spirosoik•33m ago•1 comments