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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!

A Workaphile's Apology

https://moalquraishi.wordpress.com/2026/08/10/a-workaphiles-apology/
1•maxall4•1m ago•0 comments

Show HN: MNIST64 – 99.5% accuracy MNIST BNN on a stock Commodore 64

https://github.com/jarnoh/mnist64
1•jmagic•2m ago•0 comments

"AI Models Now Introduce Safety Risks in the Physical World"

https://www.micro1.ai/research/ai-models-now-introduce-safety-risks-in-the-physical-world
1•MilnerRoute•3m ago•0 comments

Julian Assange: I'm Back

https://twitter.com/JulianAssange/status/2100571158777045331
1•hackandthink•3m ago•0 comments

The Norse Wanderer Pirate Apple ][ 1986 BBS Is Online

https://norsewanderer.com/
1•mheilemann•4m ago•0 comments

Speaking with the Mind – Neuralink [video]

https://www.youtube.com/watch?v=_j806JHhCRo
1•Audiophilip•4m ago•0 comments

AI is just another programming tool

https://norsewanderer.com/blog/blog1.html
1•mheilemann•6m ago•0 comments

Lemmings: Russian Persona Provisioning and Management for Active Measures

https://dti.domaintools.com/research/lemmings-russian-persona-provisioning
2•dmarto•9m ago•0 comments

A year of Omarchy Linux as my daily driver

https://www.ssp.sh/blog/omarchy-linux-quattro/
1•zazuke•10m ago•0 comments

The Void Job

https://yusufaytas.com/the-void-job
7•yusufaytas•10m ago•0 comments

Show HN: CUA-S1 – A System One Model for Computer Use

https://github.com/trycua/cua
1•frabonacci•16m ago•0 comments

How many times will my son see my parents?

https://countyourtimes.com/our-son
1•alexjray•17m ago•1 comments

Lawsuit Accuses Anthropic, OpenAI, SpaceXAI, Google of AI Pacing 'Collusion'

https://thehill.com/policy/technology/6099571-lawsuit-accuses-anthropic-openai-spacexai-google-of...
3•theanonymousone•17m ago•0 comments

Long Range WiFi [video]

https://www.youtube.com/watch?v=ZQ62gajj54Y
1•gus_massa•26m ago•0 comments

Four AI lab breaches were caused by a single underlying issue, Irregular says

https://thenextweb.com/news/irregular-four-labs-one-issue-disclosure-timeline-gemini
2•wickedwiesel•26m ago•0 comments

AndroAndroid Bench 2.0: Pushing the frontier with challenging long-horizon tasks

https://android-developers.googleblog.com/2026/09/android-bench-2-long-horizon-tasks.html
1•simonpure•27m ago•0 comments

Same Intel X7 358H with Qwen3.5-9B: Xiaomi Book Pro 14 vs. MSI Prestige 14

https://grigio.org/panther-lake-qwen3-5-9b-on-the-same-core-ultra-x7-358h-xiaomi-book-pro-14-cach...
1•grigio•30m ago•0 comments

Can You Beat Jev?

https://antics.gg/p/side-out-94df7d
1•eric_khun•30m ago•0 comments

Show HN: VisionLaya: Jev with Vision capabilities

https://huggingface.co/thaitea/laya-vision-smolvlm-256m
1•someguy101010•32m ago•0 comments

AI Model Leaderboards

https://vercel.com/ai-gateway/leaderboards/models
1•__rito__•34m ago•0 comments

Object Storage and WAL: Lakebase Postgres for the Agentic Era

https://www.databricks.com/blog/object-storage-wal-lakebase-postgres-agentic-era
1•theanonymousone•36m ago•0 comments

Jobs Without LeetCode

https://noleet.lol/jobs
2•monological•37m ago•0 comments

The Hugging Face Hack Wasn't What It Was Cracked Up to Be

https://www.wsj.com/opinion/the-hugging-face-hack-wasnt-what-it-was-cracked-up-to-be-e00cf3fa
2•theanonymousone•37m ago•1 comments

ChatGPT-6 Astra cracks 108-year-old unsolved WWI German code for the first time

https://www.tomshardware.com/tech-industry/artificial-intelligence/chatgpt-6-astra-cracks-108-yea...
1•NordStreamYacht•38m ago•0 comments

Retro emojis: We had 'em in the 80s and 90s

https://dfarq.homeip.net/emoticons-in-the-80s-and-90s-we-had-em/
1•zdw•39m ago•0 comments

Show HN: CrabBoss, radio automation software

https://crabboss.vercel.app
2•sonyarianto•39m ago•0 comments

Researchers Observe First Real-Time Quantum Jump in Sound

https://thequantuminsider.com/2026/09/18/researchers-observe-first-real-time-quantum-jump-in-sound/
1•staindk•40m ago•0 comments

Destinations Map – Climate details for flyable 3,833 destinations

https://destinationsmap.com/
1•Flightmussy•40m ago•0 comments

Nine-Year-Old Spends $118K on YouTube Ads Using Father's Corporate Credit Card [video]

https://www.youtube.com/watch?v=SL8_lX4E6ME
1•scottmcdot•41m ago•0 comments

Openhighways – See UK traffic CCTV feeds

https://openhighway.fly.dev/
2•jamesdillondev•41m ago•0 comments