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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!

Write eBPF programs in pure Python

https://pythonbpf.github.io/
1•varunrmallya•1m ago•1 comments

Beating the compiler at signed 32-bit division

https://lemire.me/blog/2026/10/31/beating-the-compiler-at-signed-32-bit-division/
1•r4um•1m ago•0 comments

Show HN: Natively 3.0 – a local meeting assistant that hides from screen share

https://github.com/Natively-AI-assistant/natively-cluely-ai-assistant
1•myren11•1m ago•0 comments

On Miles Davis: the best website on the internet

https://notnottalmud.substack.com/p/on-miles-davis-the-best-website-on
1•jger15•2m ago•0 comments

Nylon: WireGuard Networks as a Mesh

https://github.com/encodeous/nylon
1•drunkendog•2m ago•0 comments

Beyond the Breakthrough: What Comes Next for AI [video] [Peter Norvig]

https://www.youtube.com/watch?v=GU9msk_eH7w
1•ghassenfaidi•3m ago•0 comments

Show HN: Recento Pro (beta): CleanShot, Paste, AlDente-style tools in one app

https://1dot.ai/recento-pro
1•mytechshout•5m ago•0 comments

Should You Learn Java in 2026?

https://fagnerbrack.com/learn-java-in-2026-or-dont-b9f619da442d
1•fagnerbrack•5m ago•0 comments

The time Bluesky tried to kill my server

https://jola.dev/posts/the-time-bluesky-tried-to-kill-my-server
1•shintoist•6m ago•0 comments

DIY AI Lockpicking Robot: ESP32 and Claude AI Opens Any Lock [video]

https://www.youtube.com/watch?v=o4AUKGdScNI
2•fortran77•6m ago•0 comments

Better Block Placemaking

https://www.betterblock.org
1•simondanerd•8m ago•0 comments

Show HN: 2D world SIM where each creature runs a text classifier in the browser

https://id-le.com/?lab&halloween
2•nico•10m ago•0 comments

Pesticide lobby touts MAHA report rollback as its biggest win of 2025

https://usrtk.org/pesticides/pesticide-lobby-touts-maha-report-rollback-as-its-biggest-win-of-2025/
1•bilsbie•11m ago•0 comments

Linux Commands

https://ctrlaltvikas.github.io/awesome-linux-commands/
2•vikaskyadav•14m ago•1 comments

Afghan musicians play in secret to keep traditions alive despite ban

https://apnews.com/article/afghanistan-taliban-music-ban-1aa6e4e91bc532cec1ba4351efdeb1ba
2•rdmuser•14m ago•0 comments

AI Software Clones Are Coming for Big-Name Companies Like Adobe

https://www.engadget.com/2302459/ai-software-clones-coming-for-big-name-companies-adobe/
2•entryleveljobsc•15m ago•0 comments

AI Data Annotation and Evaluation Contractor

https://iungotech.com
1•XinningShen•15m ago•0 comments

Anthropic asks candidates about shares falling to zero

https://ua.news/en/money/anthropic-zapituie-kandidativ-pro-padinnia-aktsii-do-nulia-fortune
1•Bluestein•16m ago•0 comments

Anthropic adds new Claude rule banning recreations of existing games

https://www.dexerto.com/gaming/anthropic-adds-new-claude-rule-banning-recreations-of-existing-gam...
1•entryleveljobsc•17m ago•0 comments

Physicist: Proposed data centre would release 23 Hiroshimas of energy a day

https://www.cbc.ca/news/canada/edmonton/wonder-valley-slcn-court-physicist-9.7403677
1•entryleveljobsc•18m ago•0 comments

DeepSeek Harness Superagent Prototype

https://github.com/deepseek-ai/dsh-superagent-prototype
1•truelaurel•18m ago•0 comments

Show HN: Config parser written in TypeScript types

https://github.com/soml-lang/soml-typescript-types
1•mofle•20m ago•0 comments

Show HN: Two-hour reverse transit isochrones for NYC/NJ in the browser

https://commutable.nyc/
1•egra•21m ago•0 comments

When DeepSeek super agent goes quiet: diagnose one boundary at a time

https://super-agent.io/deepseek-super-agent/troubleshooting/
1•vantareed•22m ago•0 comments

The Kluever Maneuver

https://jordi.inversethought.com/blog/the-kluever-maneuver/
1•birdculture•24m ago•0 comments

Patrick Stewart taught us what good men do with power

https://www.vox.com/politics/508526/patrick-stewart-jean-luc-picard-star-trek-liberalism
29•rhaynes•25m ago•15 comments

An outsider's perspective on Scion and Mononoke

https://typesanitizer.com/blog/scion.html
1•acossta•26m ago•0 comments

Measuring AI Impact: What Your "Velocity Chart" Cannot Tell the CFO

https://age-of-product.com/measuring-ai-impact/
1•swolpers•26m ago•0 comments

Discussion: Will Time-Sharing Return?

https://en.wikipedia.org/wiki/Time-sharing
2•realPtolemy•27m ago•2 comments

A Scenario Where China Invades Taiwan

https://greysands.org/weapons
1•globalstatic•28m ago•0 comments