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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!

More millionaires than mansions: AI-fueled demand meets 'egregious shortage'

https://sfstandard.com/2026/02/17/ai-ipo-housing-market/
1•mikhael•1m ago•0 comments

Western Digital is sold out of hard drives for all of 2026

https://www.tomshardware.com/pc-components/hdds/western-digital-is-already-sold-out-of-hard-drive...
2•linolevan•1m ago•0 comments

Show HN: Persistent memory for Claude Code with self-hosted Qdrant and Ollama

https://github.com/elvismdev/mem0-mcp-selfhosted
1•elvismdev•2m ago•0 comments

Show HN: GPU-accelerated search for Bitcoin keys generated with weak entropy

https://b4q.io/research
1•orkblutt•2m ago•0 comments

Why 2026 is looking like the year of Rust (for me at least) [video]

https://www.youtube.com/watch?v=WhjEL817Onw
1•nicoburns•2m ago•0 comments

Pyrite64: Nintendo 64 Game-Engine and Editor

https://github.com/HailToDodongo/pyrite64
1•QuantumNomad_•4m ago•1 comments

SecPortal AI-Native Security Platform

https://www.secportal.io
1•mertsatilmaz•4m ago•1 comments

Bluebox Docker: A Living PostgreSQL Sample Database

https://www.softwareandbooz.com/introducing-bluebox-docker-a-living-postgresql-sample-database/
1•tanelpoder•5m ago•0 comments

Risk and Progress: It's Complicated

https://maybedont.ai/blog/risk-vs-capability/
1•mooreds•7m ago•0 comments

This behavior can be a turning point for families caring for a dementia patient

https://text.npr.org/nx-s1-5715970
2•mooreds•8m ago•0 comments

A push to end a fractured approach to post-fire contamination removal

https://phys.org/news/2026-01-fractured-approach-contamination.html
1•PaulHoule•9m ago•0 comments

The World Has Turned and Left Me Here

https://reason.com/2026/02/17/the-world-has-turned-and-left-me-here/
2•mooreds•9m ago•0 comments

Show HN: I spent 3 years building free site in Go that finds remote-first jobs

https://remotefirstjobs.com/
1•oterpr•11m ago•0 comments

Show HN: Forum for both agents and humans. Logs flagged injection attacks

https://wire.botsters.dev/
1•siofra•11m ago•0 comments

Approaches to writing two-sentence journal entries

https://alexanderbjoy.com/two-sentence-journal-approaches/
2•fi-le•11m ago•0 comments

Welcome to the New Atproto.com

https://atproto.com/blog/new-site-2026
2•ChrisArchitect•14m ago•1 comments

Show HN: Raypher – a Rust-Based Kernel Driver to Sandbox "Bare Metal" AI Agents

https://raypherlabs.tech/
1•Kidiga•15m ago•0 comments

Show HN: Solving ARC AGI 2 with interleaved thinking and stateful IPython REPL

https://github.com/gutfeeling/arc-agi-2-submission
2•steinsgate•16m ago•0 comments

Show HN: callonce-go – singleflight and per-request caching for Go services

https://github.com/probablyArth/callonce-go
1•probablyarth•18m ago•0 comments

Show HN: Corral – Auth and Stripe billing that AI coding agents can set up

https://github.com/llama-farm/corral
4•rgthelen•20m ago•4 comments

Yes, Miracles Do Happen Every Day

https://guideposts.org/angels-and-miracles/miracles/gods-grace/yes-miracles-really-do-happen-ever...
1•marysminefnuf•20m ago•1 comments

Show HN: A vibe-coded low-level PKCS#11 Terraform provider

https://github.com/blechschmidt/terraform-provider-pkcs11
1•blechschmidt•21m ago•0 comments

Ziggy Engleman on Instruction Vids

https://www.nifdi.org/videos/siegfried-zig-engelmann-videos/zig-videos-on-instruction-2.html
1•marysminefnuf•21m ago•0 comments

AT Protocol (New Site)

https://atproto.com/
2•danabramov•23m ago•2 comments

Show HN: I built an interactive LSM Tree simulator

https://saiprakash.in/lsm
1•saiprakashreddy•24m ago•0 comments

AI companies are eating higher education

https://www.nytimes.com/2026/02/12/opinion/ai-companies-college-students.html
3•anigbrowl•26m ago•1 comments

The First Agent Skills Benchmark

https://huggingface.co/papers/2602.12670
1•xdotli•27m ago•1 comments

Complexity Explorables

https://www.complexity-explorables.org/about/
1•rolph•27m ago•0 comments

Sarajevo sniper tourists 'killed children by day, then partied at night'

https://www.thetimes.com/world/europe/article/sarajevo-safari-snipers-killing-children-d055tpn2f
10•baxtr•27m ago•0 comments

Forget MCP, Bash Is All You Need

https://deadneurons.substack.com/p/forget-mcp-bash-is-all-you-need
1•nr378•27m ago•0 comments