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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•8mo 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!

The state of enterprise AI – OpenAI

https://openai.com/index/the-state-of-enterprise-ai-2025-report/
1•Anon84•39s ago•0 comments

Human-on-the-Loop: Reimagining Software Development for Autonomous AI

https://han.guru/papers/ai-dlc-2026/
1•jwaldrip•1m ago•0 comments

The MapLibre open-source mapping libraries

https://maplibre.org/
1•gjvc•1m ago•0 comments

Show HN: Aviation Compliance Checker – Automated FAA Compliance for GitHub

https://github.com/marketplace/actions/aviation-compliance-checker
1•ashish_sharda•4m ago•1 comments

Django Htmx and Django-Components

https://www.pedaldrivenprogramming.com/2024/01/django-htmx-and-components/
1•krystofee•4m ago•0 comments

Vibe Coding Enterprise PHP Applications

https://blog.devgenius.io/vibe-coding-enterprise-php-applications-5a937cef93b9
1•speckx•4m ago•0 comments

How We Brought Our Game to Discord

https://chipsoffury.com/posts/discord-activity/
1•kirusfg•5m ago•0 comments

Half the 100 largest cities are in high water stress areas, analysis finds

https://www.theguardian.com/environment/2026/jan/22/half-world-100-largest-cities-in-high-water-s...
1•c-flow•5m ago•0 comments

China, US sign off on TikTok US spinoff

https://www.semafor.com/article/01/22/2026/china-us-sign-off-on-tiktok-us-spinoff
1•thm•8m ago•0 comments

Show HN: Automatic Chrome tab grouping that runs on-device

https://github.com/shubhams2m/grooopy
1•shubhams2m•8m ago•0 comments

Coming Winter Storm to Test Our Fragile Grid

https://www.forbes.com/sites/mattrandolph/2026/01/22/coming-winter-storm-to-test-our-fragile-grid/
1•geox•8m ago•0 comments

The Cost of Documents in 2026

https://www.digiparser.com/statistics/hidden-cost-of-documents
1•thepantales•11m ago•0 comments

Show HN: I'm building an experimental forum to help people connect

https://isles.app/
1•nihakue•12m ago•0 comments

Show HN: Take a Break – a gentle extension to stop autoplay late at night

https://hardiksondagar.me/take-a-break/
1•hardiksondagar•13m ago•0 comments

Show HN: Allowing web agents to click and type like humans (Python library)

https://github.com/Super-44/nothingtoseehere
1•hjegeorge•13m ago•0 comments

Infinite Pancakes, Anyone?

https://www.nytimes.com/2026/01/20/science/infinite-pancake-math-puzzle.html
1•cainxinth•14m ago•0 comments

Show HN: QuietPage – Privacy focused journaling with E2E encryption

https://www.quietpage.app/
1•AutYellow•15m ago•0 comments

Nadella: AI Could Lose Social Permission If It Burns Energy Without Benefits

https://finance.yahoo.com/news/microsoft-ceo-satya-nadella-warns-205620968.html
1•fofoz•16m ago•0 comments

Show HN: BlueDot – Universal Cloud Console TUI for multi-cloud management

1•keepamovin•16m ago•0 comments

We're all VCs now: The skills developers need in the AI era

https://lerner.co.il/2026/01/21/were-all-vcs-now-the-skills-developers-need-in-the-ai-era/
1•lumpa•17m ago•0 comments

Show HN: Rage – A fiber-based Ruby framework

https://github.com/rage-rb/rage
1•rageonruby•17m ago•1 comments

The Reason Claude Code Users Prefer the Terminal

https://elliot.my/claude-coder-users-prefer-the-terminal/
2•frizlab•18m ago•0 comments

Now with Mqtts

https://daniel.haxx.se/blog/2026/01/19/now-with-mqtts/
1•firesteelrain•19m ago•0 comments

Microservices for the Benefits, Not the Hustle

https://wolfoliver.medium.com/the-purposes-of-microservices-4e5f373f4ea3
1•WolfOliver•20m ago•0 comments

Show HN: Auto-Focus – Automatically block Notifications when in the flow

https://auto-focus.app/
1•janbanan13•20m ago•0 comments

Ask HN: Industrial smart glasses with online / offline capabilities

1•aureliusm•23m ago•0 comments

Study on positive use of AI in academic writing; challenges brain rot narrative

https://www.sciencedirect.com/science/article/pii/S1475158525001444
1•polyglotfacto•24m ago•0 comments

Show HN: Pdfpull – PDF extraction API with structured invoice and resume parsing

https://bnacar.dev/pdfpull-landing/playground.html
1•uppnrise•26m ago•0 comments

Show HN: ServBay – Native local dev environment (modern XAMPP)

https://www.servbay.com/features
2•Saltyfishh•29m ago•0 comments

Trustless dead man's switch for crypto

https://www.deadhandprotocol.com/
1•maxcomperatore•33m ago•0 comments