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!

Rust: The never type has been merged into nightly

https://github.com/rust-lang/rust/pull/155499
1•weinzierl•50s ago•0 comments

Solving the 1+N Query Problem

https://acadia.engineering/blog/solving-the-1-plus-N-query-problem
1•wheatBread•1m ago•0 comments

Hunting Down a Go Runtime Bug on 32-Bit Embedded Systems

https://sigma-star.at/blog/2026/08/go-runtime-netpoll-bug/
1•Deeg9rie9usi•2m ago•0 comments

Recent public co filings analyzed: AI not generating profit yet

https://aiearnings.dev/
3•epsteingpt•3m ago•1 comments

Chaos Testing with mirrord

https://metalbear.com/blog/chaos-testing-mirrord/
1•aviramha•5m ago•0 comments

Obsidian and Claude Code: The Setup I Use Every Day

https://lukasvonkunhardt.com/obsidian-claude-code-setup/
1•lukasvk•5m ago•0 comments

NASA's New Space Telescope Is Poised to Discover Hidden Facets of the Universe

https://www.wired.com/story/nasa-nancy-grace-roman-space-telescope-hidden-facets-of-universe/
1•voxleone•7m ago•0 comments

Writing, Briefly (2005)

https://paulgraham.com/writing44.html
1•biscuits1•7m ago•0 comments

Tech Is Stealing Home

https://chartkidmatt.com/p/tech-is-stealing-home
2•RickJWagner•7m ago•0 comments

Alt Text Hall of Fame

https://alttexthalloffame.org/en/
1•surprisetalk•7m ago•0 comments

Is Ground News a Psy-Op? (2026)

https://literatemachine.com/2026/08/16/is-ground-news-a-right-wing-psy-op/
1•flawn•9m ago•0 comments

Polyglot (Computing)

https://en.wikipedia.org/wiki/Polyglot_(computing)
1•soupspaces•9m ago•0 comments

It takes 5 cloud services to hear my doorbell

https://blog.vghaisas.com/rube-goldberg-doorbell/
3•vghaisas•11m ago•2 comments

Show HN: I let a subagent workflow refactor my codebase for three days

https://github.com/ringlochid/oh-my-subagents
2•ringlochid•11m ago•0 comments

Don't Break the Cache: An Evaluation of Prompt Caching

https://arxiv.org/abs/2601.06007
1•ankitg12•12m ago•0 comments

It's Tim Cook's last week on the job. Let's review his career

https://www.macworld.com/article/3219273/enjoying-tim-cook-click-to-review.html
1•thm•12m ago•0 comments

Show HN: VidScio – Identify movie/series from a URL, image or description

https://www.vidscio.com
2•aldrin_v•12m ago•0 comments

When AI Writes the Code, Verification Is the New Implementation

https://sarpex.com/2026/08-verification-is-the-new-implementation
1•TheSorcerer•13m ago•0 comments

The Craziest Stock Market Has Turned into a Fright Ride

https://www.wsj.com/finance/stocks/stock-market-crash-south-korea-ai-ccb00cba
1•thm•13m ago•0 comments

Meta pixel: Measure, optimise and retarget ads on Facebook and Instagram

https://www.facebook.com/business/tools/meta-pixel?_fb_noscript=1
1•thunderbong•14m ago•0 comments

Show HN: npx x402-hosting deploy – hosting NextJS with a single cmd

https://x402-hosting.com
2•Steen3S•14m ago•0 comments

Show HN: Square Sketch – A vector graphics editor with a modeless interface

https://squaresight.io/en/sketch/index.html
1•SquareSight•14m ago•1 comments

35 years ago, Linus Torvalds made a Usenet post that introduced Linux to world

https://www.xda-developers.com/35-years-ago-linus-torvalds-usenet-linux/
1•taubek•15m ago•0 comments

Show HN: Efficient way to learn breadth-first, connecting the dots

https://curiora.space/i/artificial-intelligence
1•pentagram•15m ago•0 comments

Cursor Origin review: An engineer's perspective

https://appwrite.io/blog/post/cursor-origin-review-an-engineers-perspective
2•deepmem•16m ago•0 comments

Show HN: I built a search engine for 800 niche job boards

https://jobboardsearch.com
2•rrmdp•17m ago•0 comments

Show HN: What one invoice actually costs across 33 invoicing plans

https://billinghub.online/invoice-cost-calculator
1•alexgoldwyn•18m ago•0 comments

A counterexample to Kusner's conjecture on equilateral sets

https://arxiv.org/abs/2608.14013
1•unddoch•18m ago•0 comments

An 2026-07-28 MCP Server from Scratch

https://data4sci.substack.com/p/an-mcp-server-from-scratch
1•Anon84•18m ago•0 comments

BifrostDNS – A mock DNS server with a REST API, for testing DNS-dependent flows

https://github.com/minutemailco/bifrost-dns
1•minutemail•18m ago•0 comments