frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

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!

JavaScript library for rapid AI and XR prototyping

https://github.com/google/xrblocks
1•arbayi•3m ago•0 comments

OpenAI proposes handing Trump administration 5% stake

https://www.reuters.com/business/openai-proposes-handing-trump-administration-5-stake-ft-reports-...
2•tristanj•4m ago•0 comments

Smoothie – compile a folder of data into a cited artifact agents can query

https://github.com/4tyone/smoothie
1•MelsHakobyan•7m ago•1 comments

Web Apps for Meta Ray-Ban Display Glasses

https://wearables.developer.meta.com/docs/develop/webapps/build/
2•arbayi•9m ago•0 comments

I hacked this temu camera. what I found should be illegal. [video][8 mins]

https://www.youtube.com/watch?v=RuqQR_R-dEQ
1•Bender•9m ago•0 comments

Show HN: Claude Desktop Switcher for separating the whole Claude Desktop suite

https://matsumotory.github.io/claude-desktop-switcher/
2•matsumotory•10m ago•0 comments

Kimi K2.7 Code is generally available in GitHub Copilot

https://github.blog/changelog/2026-07-01-kimi-k2-7-is-now-available-in-github-copilot/
2•unliftedq•11m ago•0 comments

Show HN: Margarita - Programming language for Agents using Markdown-ish syntax

https://www.margarita.run
1•margarita_dev•12m ago•0 comments

US reportedly mulls pulling troops from Saudi Arabia as ties sour over Iran war

https://www.timesofisrael.com/us-reportedly-mulls-pulling-troops-from-saudi-arabia-as-ties-sour-o...
1•koolhead17•15m ago•0 comments

Herdr: One terminal to rule them all

https://herdr.dev/
1•handfuloflight•16m ago•0 comments

Microsoft/Flint-Chart

https://github.com/microsoft/flint-chart
1•geoffbp•16m ago•0 comments

Society of Saint Pius X

https://en.wikipedia.org/wiki/Society_of_Saint_Pius_X
1•febed•17m ago•0 comments

Can solar and wind and batteries provide 24/7/365 electricity?

https://unpopular-truth.com/2026/06/19/can-solar-and-wind-batteries-really-provide-24-7-365-elect...
1•dpraburaj•17m ago•0 comments

Show HN: A complete AI agency at your fingertips

https://github.com/msitarzewski/agency-agents
1•adithyaharish•21m ago•0 comments

Chemurgy

https://en.wikipedia.org/wiki/Chemurgy
1•petethomas•21m ago•0 comments

State of X402 – Independent Audit – Every Faciliator, Every Chain

https://x402stats.io
1•pro_methe5•23m ago•0 comments

Zig - All Package Management Functionality Moved from Compiler to Build System

https://ziglang.org/devlog/2026/?2026-06-30#2026-06-30
3•Retro_Dev•25m ago•0 comments

Ask HN: What are you building first with Fable?

4•akashwadhwani35•33m ago•1 comments

Trump's plan to redesign every .gov website leads to AI-designed horrors

https://arstechnica.com/tech-policy/2026/06/trumps-plan-to-redesign-every-gov-website-leads-to-ai...
2•duxup•37m ago•1 comments

Understanding Why Language Models Hallucinate: Testing Reasoning Against Priors

https://neohughus.github.io/Understanding_Why_Language_Models_Hallucinate/
1•ilreb•38m ago•0 comments

Who Shuts Down the Internet the Most?

https://pulse.internetsociety.org/en/shutdowns/
2•Bender•40m ago•0 comments

White House accelerates plans for AI model standards

https://www.ft.com/content/0bb7e2f9-007b-4577-9c4a-858948ee969a
1•OutOfHere•40m ago•0 comments

Carson Block: If you thought the global financial crisis was bad

https://www.economist.com/by-invitation/2026/06/28/if-you-thought-the-global-financial-crisis-was...
1•burntcaramel•41m ago•0 comments

Circle of Empathy

https://video.cirquedusoleil.com/originals/cirque-du-sound/season-1/ep5
1•andsoitis•42m ago•0 comments

Your AI lover will change you

https://www.newyorker.com/culture/the-weekend-essay/your-ai-lover-will-change-you
1•andsoitis•43m ago•0 comments

Arena, the AI leaderboard everyone uses, is now a $100M business

https://techcrunch.com/2026/06/29/arena-the-ai-leaderboard-everyone-uses-is-now-a-100m-business/
2•doppp•51m ago•0 comments

Ask HN: What things might help me to become inference engineer?

2•chalshik•53m ago•3 comments

Apple 'Hide My Email' Vulnerability Reveals Peoples' Real Email Addresses

https://www.404media.co/apple-hide-my-email-vulnerability-reveals-peoples-real-email-addresses/
3•phyzome•57m ago•0 comments

Show HN: One Page Life Calendar

https://beta.actions.life
1•eltonlin•58m ago•0 comments

Egg Libor Was Also Manipulated

https://www.bloomberg.com/opinion/newsletters/2026-07-01/egg-libor-was-also-manipulated
1•greyface-•1h ago•0 comments