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Ask HN: What's a simple app you'd build if you had a weekend?

3•akashwadhwani35•2h ago
I know apps like this already exist, but I’d make one that sends you a single positive affirmation once a day as a notification.

Nothing else.

No streaks, no subscriptions, no journaling, no extra features.

That’s all it does.

Comments

wseqyrku•1h ago
What's the app you'd build if you had ten years?
ggm•1h ago
Website implementing a couple of the classic decision support linear programming models. Not 20, and not 1. Maybe 2 or 3, with low enough barrier to enter somebody can do a "what if" over 3 or 4 unrelated criteria which need to arrive at a unified choice.

Trump administration to pay £765M to cancel 4 more wind projects

https://www.nytimes.com/2026/06/17/climate/trump-wind-farms-cancel-millions.html
1•asplake•3m ago•1 comments

How animals communicate to work together across species boundaries

https://phys.org/news/2026-06-animals-communicate-species-boundaries.html
1•the-mitr•8m ago•1 comments

GLM-5.2 Beat Fable 5 at Website Design

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TOML Schema

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Show HN: Make every bug perfectly reproducible

https://workers.io/
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Coding a Brick Tower

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Show HN: Self-hostable academic paper manager (linxiv)

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Brain-computer interface trials are taking off

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Ask HN: Will we start seeing tools for LLM use?

1•bonigv•36m ago•1 comments

Federal regulators order grid operators speed power2energy-hungry AI datacenters

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https://gcontext.ai
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GitHub Copilot and Dev Productivity: An Observational Dose-Response Analysis

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Britain Learned and Unlearned Nuclear

https://worksinprogress.co/issue/how-the-uk-learned-and-unlearned-nuclear/
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Möbius Chess

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Doom Composer Bobby Prince Has Died

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Open source alternative to brain by perplexity

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Show HN: Autonomy – Self-Harness/Self-Directed AI Agent Core Under Development

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How Does Bluetooth Work?

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I created an open source app to check if a photo is from an AI or a Camera

https://github.com/Wavesonics/C2PAVerify
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Is It Possible to Block Childrens' Access to Social Media? [video]

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How Russian President Vladimir Putin plans to live forever

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Ask HN: Using OPA/Rego to secure MCP tool execution. Does it make sense?

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Show HN: AI Voice Generator for Creators

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I made SHORT SQUEEZE, a finance movie trailer created with AI

https://www.instagram.com/reel/DZy5nOKN7Pz/
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Mastodon 4.6 Released

https://lwn.net/Articles/1078466/
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Voxtral Realtime WebGPU – A Hugging Face Space by Mistralai

https://huggingface.co/spaces/mistralai/Voxtral-Realtime-WebGPU
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Release 4.0.0 · HuggingFace/Transformers.js

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2•fagnerbrack•1h ago•0 comments