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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•9mo 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!

Ask HN: Free Collaboration Tools for Non Profits?

1•bjourne•1m ago•0 comments

Static taint analysis for LLM agents

https://deepclause.substack.com/p/static-taint-analysis-for-llm-agents
1•schmuhblaster•3m ago•0 comments

Show HN: HN Bot Detector - Detects LLM-Generated Comments on Hacker News

https://github.com/umairnadeem/hn-bot-detector
1•umairnadeem123•4m ago•0 comments

What does everyone think of this "anti-social" network?

https://char.social/
1•poorIy•4m ago•0 comments

He lived on the street. Now turns raw dryland into frugal homestead [video]

https://www.youtube.com/watch?v=xa63fqDHmTQ
1•fallinditch•6m ago•0 comments

How I used Cursor to Migrate Frameworks

https://kentcdodds.com/blog/how-i-used-cursor-to-migrate-frameworks
1•abraham•7m ago•0 comments

How are engineering teams handling AI compliance?

1•partycat•7m ago•0 comments

A Program Binary Becomes a Running Process

https://buildsoftwaresystems.com/post/program-binary-to-running-process/
1•ThierryBuilds•8m ago•1 comments

Show HN: Cosmic horror newspaper engine for an Amsterdam art collective

https://unsafejournal.com/
1•webhouwer•10m ago•0 comments

DVC: Data Version Control

https://dvc.org/
1•Olshansky•13m ago•0 comments

Show HN: AluminatiAi – Per-job GPU energy cost tracking (open source)

1•AluminatiAi•13m ago•0 comments

Did the president need Congress to attack Iran?

https://docs.google.com/document/d/1KONKQuQkkU3lbWalkkvAdpJFk6xEPulCKmDPHHz-dLw/edit?usp=sharing
1•mrjoshuacraigt•17m ago•1 comments

Show HN: AI agent that works autonomously while I'm offline

https://hire-your-ai-guide.vercel.app
1•ZeroDayCyber•18m ago•0 comments

Show HN: Minecraft music player, with random intervals like in the game

https://paul-andre.github.io/minecraft-music-simulator/
1•bogdanoff_2•20m ago•0 comments

Show HN: Laid – Chrome extension that detects AI-generated LinkedIn posts

https://github.com/oldeucryptoboi/linkedin-ai-detector
1•oldeucryptoguy•22m ago•2 comments

Show HN: Tiny Toasts – Collect video toasts using a QR code (no app required)

https://tinytoasts.co
1•jtowers2010•25m ago•0 comments

Show HN: Cc-reaper – Three-layer cleanup for orphan Claude Code processes

https://github.com/theQuert/cc-reaper
1•thequert•29m ago•0 comments

Cab-Rank Rule

https://en.wikipedia.org/wiki/Cab-rank_rule
1•valzevul•29m ago•0 comments

The Whispering Earring

https://gwern.net/doc/fiction/science-fiction/2012-10-03-yvain-thewhisperingearring.html
3•iamsam123•30m ago•1 comments

Software Engineering in the Agentic Era

https://sidv.dev/blog/software-engineering-agentic-era/
1•fangpenlin•32m ago•0 comments

Show HN: Ralphex – autonomous GPT Codex agent loop for ChatGPT Pro users

https://github.com/SmolNero/ralphex
1•edgar_ortega•34m ago•0 comments

Xuv: X11 user daemon to automatically run commands triggered by user specified

https://codeberg.org/NRK/xuv
2•todsacerdoti•35m ago•0 comments

SaaS-pocalypse chatter is doomster pr0n

https://www.theregister.com/2026/03/01/saaspocalypse_opinion/
1•Bender•37m ago•1 comments

Lenovo shows off snap-together laptop with removable keyboard, screen, and ports

https://www.theregister.com/2026/03/01/lenovo_shows_off_modular_laptop/
1•Bender•38m ago•0 comments

South Korea's tax office apologizes for leaking seed phrase to seized crypto

https://www.theregister.com/2026/03/02/south_korea_tax_office_cryptocurrency_leak/
1•Bender•38m ago•0 comments

Ultrafast neural sampling with spiking nanolasers

https://www.nature.com/articles/s41467-025-66818-1
1•PaulHoule•43m ago•0 comments

Show HN: Port Forwarding Wrapper for Mosh

https://github.com/liyu1981/moshpf
1•liyu1981au•44m ago•0 comments

GPL as the Best Licence – Governance and Philosophy

https://blog.hansenpartnership.com/gpl-as-the-best-licence-governance-and-philosophy/
2•pabs3•45m ago•0 comments

The Mystery of Asjo.org

https://acid.vegas/blog/the-mystery-of-asjo-org/
1•reubn•46m ago•0 comments

If Trump attacks Iran, western media will be cheering him on

https://www.middleeasteye.net/opinion/if-trump-attacks-iran-western-media-will-be-cheering-him
2•lyu07282•50m ago•0 comments