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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!

Skip the Code, Ship the Binary

https://engrlog.substack.com/p/why-skip-the-code-ship-the-binary
1•alokDT•2m ago•0 comments

The Document Foundation: Open Letter to Apache OpenOffice

https://blog.documentfoundation.org/blog/2020/10/12/open-letter-to-apache-openoffice/
1•xvilka•3m ago•0 comments

FlyPhotos: Fast ultra-light photo viewer replacement for Windows

https://github.com/riyasy/FlyPhotos
1•thunderbong•6m ago•0 comments

Nick Land Became Silicon Valley's Favorite Doomsayer

https://www.newyorker.com/culture/the-lede/silicon-valleys-favorite-doomsaying-philosopher
1•rbanffy•10m ago•0 comments

Show HN: Fastbuilder.ai – Topological verification for AI-generated code

https://fastbuilder.ai/
1•prabhatkr•11m ago•0 comments

Show HN: Claude-ts – Translation proxy to fix non-English token waste in Claude

https://github.com/kimi230/claude-ts
1•kiimdonglin•12m ago•0 comments

The Dance Floor Is Disappearing in a Sea of Phones

https://www.bloomberg.com/news/features/2026-02-20/a-boom-in-electronic-dance-music-is-changing-c...
2•blondie9x•13m ago•0 comments

Hotline Webring

https://hotlinewebring.club/
1•TigerUniversity•14m ago•0 comments

The API Tooling Crisis

http://efp.asia/blog/2025/12/24/api-tooling-crisis/
2•dhruv3006•15m ago•0 comments

Sewage Spill in the Potomac River

https://www.vdh.virginia.gov/news/potomac-sewage-spill/
1•geox•15m ago•0 comments

Why Hold Your Straight-A Student Back a Year? To Get a Better Endorsement Deal

https://www.wsj.com/us-news/education/sports-holdback-reclass-nil-endorsements-84804dbf
2•impish9208•15m ago•2 comments

Attention Media ≠ Social Networks

https://susam.net/attention-media-vs-social-networks.html
2•susam•18m ago•0 comments

Show HN: How to Verify USDC Payments on Base Without a Payment Processor

https://paywatcher.dev
2•Sem_pre•19m ago•0 comments

Real-world GPT-OSS-20B benchmark on L4, L40S and H100 (latency, tokens/SEC)

https://devforth.io/insights/self-hosted-gpt-real-response-time-token-throughput-and-cost-on-l4-l...
1•dotnot•20m ago•0 comments

Show HN: MCP-hive.com A marketplace where MCP Server developers can earn

https://mcp-hive.com
1•namel•20m ago•0 comments

Urgent call for community support to secure Mautic's financial future

https://mautic.org/blog/urgent-call-for-community-support-to-secure-mautics-financial-future/
2•sdoering•21m ago•1 comments

Minions: Stripe's one-shot, end-to-end coding agents – Stripe Dot Dev Blog

https://stripe.dev/blog/minions-stripes-one-shot-end-to-end-coding-agents
2•kiyanwang•21m ago•0 comments

Show HN: Cheddar-bench – unsupervised benchmark for coding agents

https://github.com/przadka/cheddar-bench
2•przadka•21m ago•0 comments

PL/0

https://en.wikipedia.org/wiki/PL/0
1•tosh•22m ago•0 comments

Coding Interview in Age of AI

https://pocketdsa.github.io/
1•ayusch•22m ago•1 comments

Show HN: Fusion RSS Reader v1.0 release

https://github.com/0x2E/fusion
1•rook1e_dev•23m ago•0 comments

What Is a Database Transaction?

https://planetscale.com/blog/database-transactions
1•0x54MUR41•26m ago•0 comments

The Next Great Transformation

https://www.theideasletter.org/essay/the-next-great-transformation/
1•mitchbob•26m ago•0 comments

Show HN: I built a free AI tool that picks your SaaS tech stack based on budget

https://appstackbuilder.com
3•rupatiwari25•28m ago•4 comments

Finally We Have Created the Silver Bullet

https://backofmind.substack.com/p/finally-we-have-created-the-silver
1•ero5004•28m ago•0 comments

F'ing Autocorrect They're

1•diametricsound•28m ago•0 comments

Show HN: goto-assistant – Self-hosted AI assistant, one npx command, no Docker

https://github.com/jolks/goto-assistant
1•jolks•31m ago•0 comments

Show HN: BoltFFI a high performance Rust bindings generator

https://github.com/boltffi/boltffi
2•alihilal94•32m ago•1 comments

Building a C Compiler from Scratch with AI-Driven Development

https://www.moonbitlang.com/blog/fastcc-ai-driven-development
1•cyrc•34m ago•0 comments

Reflections on the End of Software

https://drpz.xyz/posts/reflections-on-dwm/
2•holliplex•34m ago•1 comments