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Bryan Johnson says he's 'cloned himself as a baby' to harvest its organs

https://www.independent.co.uk/news/science/bryan-johnson-clone-baby-biohacking-b3020197.html
1•speckx•1m ago•0 comments

Orcas seen ramming prey so hard it explodes may be playing game

https://www.theguardian.com/environment/2026/jul/23/orcas-ramming-prey-hard-explodes-playing-game
1•pseudolus•4m ago•0 comments

Show HN: Avery Software

https://www.avery.software
1•bhoomika_r_•4m ago•0 comments

I took a paper card game to a free multiplayer browser game as a non-engineer

https://cupqualifier.app
1•Tkayy•4m ago•0 comments

Don't put your name to bot-written content

https://tris.sherliker.net/blog/dont-put-your-name-to-bot-written-content/
2•speerer•5m ago•0 comments

I built a premium course and sold zero copies

https://gammavibe.com/updates/i-built-a-premium-course-and-sold-zero-copies/
2•digitalhobbit•5m ago•0 comments

The Rise of the Deserving Rich

https://economist.com/finance-and-economics/2026/07/23/the-rise-of-the-deserving-rich
3•andsoitis•7m ago•0 comments

PlayMagicReef – Kids color in a fish, scan it, and it appears in a digital tank

https://www.playmagicreef.com
2•eugenejlee•10m ago•0 comments

Rolling in the Diffs

https://pwno.io/diff
2•ryanmerket•10m ago•0 comments

The Space Force is now seeking to buy up to $30B in rocket launches

https://arstechnica.com/space/2026/07/the-space-force-is-now-seeking-to-buy-up-to-30-billion-in-r...
3•Levitating•10m ago•0 comments

Frontier-class LLM inference on a laptop CPU

https://github.com/arizqi/cpubrrr
1•yogthos•11m ago•0 comments

I stopped alt-tabbing my way through LeetCode practice

https://leetcopilot.dev/blog/how-ai-chat-changed-my-leetcode-practice
2•alexwang24•13m ago•1 comments

California-bought cars can be hijacked via Bluetooth

https://www.theregister.com/security/2026/07/23/millions-of-california-bought-cars-can-be-hijacke...
2•sbulaev•14m ago•0 comments

Coolify

https://coolify.io/
3•matthberg•15m ago•0 comments

Y Combinator joins the army [video]

https://www.youtube.com/shorts/iOeW40N-1VI
2•matei88•16m ago•1 comments

Stanford MS&E435 Economics of the AI Supercycle [video]

https://www.youtube.com/watch?v=sRvrXL83N-c
1•anonu•17m ago•0 comments

Microsoft could do something big

https://www.marginpoints.com/essays/microsoft-could-do-something-big
2•historian1066•18m ago•0 comments

An Almost Periodic Function

https://www.johndcook.com/blog/2026/07/23/an-almost-periodic-function/
2•ibobev•18m ago•0 comments

Show HN: Notebooker.ai – NotebookLM alternative, your own models, keys, storage

https://notebooker.ai/
1•mistakevin•18m ago•0 comments

2026 Fields and Abacus Medals 2026

https://www.quantamagazine.org/series/fields-and-abacus-medals-2026/
1•ibobev•18m ago•0 comments

How Fast Is the Universe Expanding?

https://www.quantamagazine.org/how-fast-is-the-universe-really-expanding-20260723/
3•ibobev•20m ago•0 comments

LinkedIn Slop

https://olly.world/linkedin-slop
3•speckx•20m ago•0 comments

Selfie for sign-in: a new, easy way to access your Google Account

https://blog.google/innovation-and-ai/technology/safety-security/selfie-video-sign-in/
5•lkurtz•20m ago•0 comments

Ask HN: What's SoTA in Agent Memory?

2•polyphilz•21m ago•0 comments

Show HN: Ef_vi vs. DPDK vs. AF_XDP – 24h tail-latency benchmarks on real NICs

https://github.com/ASherjil/ABTRDA3
2•CoreCppEngineer•21m ago•1 comments

Stronger AI agents did more damage, not less

https://www.agentx-core.com/blog/stronger-agents-more-dangerous-unguarded
3•vdalal•23m ago•0 comments

Maybe Jacobian Conjecture Counterexamples Are Not Rare

https://win-vector.com/2026/07/23/maybe-jacobian-conjecture-counterexamples-are-not-rare/
3•jmount•25m ago•0 comments

Sierra acquires TakeOff, the long-horizon AI agent platform

https://runtimewire.com/article/sierra-acquires-takeoff-long-horizon-ai-agents
3•ryanmerket•26m ago•0 comments

What happened to the tea.xyz spam wave

https://nesbitt.io/2026/06/11/what-happened-to-tea.html
4•jcbhmr•27m ago•0 comments

macOS 27 Beta Hides Trippy Siri 'Voice Pad' Interface

https://www.macrumors.com/2026/07/23/macos-27-beta-hidden-siri-voice-ui/
1•dabinat•27m ago•0 comments
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!