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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•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!

Show HN: I built an open source alternative to Workflowy

https://dotflowy.com
1•campak•37s ago•0 comments

AppLess – Generative UI at 1800 tokens per sec

https://github.com/thesysdev/appless
1•zahlekhan•50s ago•0 comments

The rate at which Earth is absorbing energy is alarming climate scientists

https://www.economist.com/science-and-technology/2026/07/15/the-rate-at-which-earth-is-absorbing-...
1•doubleg•1m ago•1 comments

SnippAI – Screenshot, speak, straight into your Claude Code session

https://snippai.dev
1•brothaakhee•4m ago•1 comments

Akamai (Linode) Changed How It Bills New Compute – What It Meant for Our Dataset

https://webbynode.com/articles/akamai-changed-how-it-bills-new-compute-this-month-july-2026-heres...
1•gsgreen•5m ago•0 comments

Pong Wars on the Commodore 64

https://imrannazar.com/articles/c64-pongwars
1•homarp•5m ago•1 comments

Slashfriends – A Directory of /Friends Pages

https://slashfriends.org/
1•herbertl•7m ago•0 comments

#1 Standup on my projet progress

https://twitter.com/ab44997/status/2077782776275718429
1•atomiomi•8m ago•1 comments

Show HN: Open-source AI app builder you can embed into your own SaaS

https://github.com/totalumlabs/ai-app-builder-open
1•francescjuille•10m ago•0 comments

Show HN: PokeTokenBar – Raise a Pokémon with your AI token usage

https://github.com/chattymin/PokeTokenBar
1•chattymin•14m ago•1 comments

Chip Motors

https://chipmotors.com/
1•skadamat•15m ago•0 comments

Everything I googled in a week as a professional software engineer (2019)

https://localghost.dev/blog/everything-i-googled-in-a-week-as-a-professional-software-engineer/
1•downbad_•15m ago•0 comments

Ubuntu Kernel Team Warns of Temporary AMD GPU Performance Regression Up to 42x

https://www.phoronix.com/news/Ubuntu-7.0-AMDGPU-Regress
3•dabinat•16m ago•0 comments

Financial advice I can give you is to sell your car

https://yourbrainonmoney.substack.com/p/the-best-financial-advice-i-can-give
2•herbertl•17m ago•0 comments

Reducing Layer Overhead in LBSE

https://blogs.igalia.com/nzimmermann/posts/2026-07-14-lbse-conditional-layers/
2•ksec•17m ago•0 comments

Ask HN: Best meeting transcription daemon for macOS?

1•tomelliot•17m ago•0 comments

Google Earth Desktop Client to Be Retired in 2027

https://hackaday.com/2026/07/16/google-earth-desktop-client-to-be-retired-in-2027/
2•anonymousiam•18m ago•0 comments

I auto-published 2,300 AI articles and Google buried 90% of my traffic

https://martin-schenk.es/blog/2300-ai-articles-google-buried-my-traffic/
1•martin_schenk•20m ago•0 comments

What would a rainbow be like on Tatooine? [video]

https://www.youtube.com/watch?v=BO8rOs05v48
1•arbesman•21m ago•0 comments

Building a High Performance Order matching system from scratch

https://harshiyer.in/blog/farzi-exchange
1•proximuz•22m ago•0 comments

Yann LeCun on AMI Labs, JEPA, and the AI World of 2030

https://nebius.science/stories/meet-yann-lecuns-lab-and-the-ai-world-of-2030?shem=rimspwouohc,
2•natali_gray•23m ago•0 comments

Show HN: Token Gobbler – the goofy game where you're the LLM

https://tokengobbler.vercel.app/
1•dschwede•23m ago•0 comments

Launching vorfluxai: The autopilot for software engineering

https://twitter.com/myprasanna/status/2077069901546852688
1•samaysharma•24m ago•0 comments

Show HN: A commerce Network built on UCP for agents to discover and Pay

https://kifly.ai
1•roberttk1•25m ago•1 comments

Stateless API middleware to auto-throttle digital menus based on live POS volume

https://eighty6ai.onrender.com/index.html
1•jayaindran4•25m ago•0 comments

Filtering Secrets from Coding Agents with a Hook

https://crimede-coder.com/blogposts/2026/SecretHooks
1•apwheele•26m ago•0 comments

Show HN: Tmux tab markers for Claude Code, Grok, and pi sessions

https://github.com/jhickner/tmux-agent-tabs
1•jhickner•26m ago•0 comments

Show HN: Sentinel – open-source QA agent that reads your code before it clicks

https://blog.simbastack.com/announcing-sentinel/
3•asenna•27m ago•0 comments

Show HN: Docs.dev Your Own Hosted Docs Platform in Minutes

https://docs.dev
3•linktothenew•28m ago•0 comments

AI Was Supposed to Save Companies Money. Instead, It's Blowing Up Budgets

https://www.inc.com/chris-morris/ai-was-supposed-to-save-companies-money-instead-its-blowing-up-b...
2•1vuio0pswjnm7•29m ago•0 comments