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Show HN: I built Magic Canvas – A visual space for context engineering

https://trickle.so
4•jarodxuming•7h ago
Hey HN,

I got frustrated with the endless back-and-forth prompting when building apps with AI. You know the drill: describe what you want, AI generates code, you ask for changes, rinse and repeat. It felt like we were missing something fundamental about how humans and AI should work together.

So I built Magic Canvas: what I call a visual space for context engineering. Instead of describing your app in text, you work directly on a canvas where the AI agent can see your layout, understand your design intentions, and write production code that matches exactly what you've created visually.

The key insight: when you can show instead of tell, the AI understands your context much better. Drag a button, resize a section, change colors — all of it translates directly to code changes. I've been using it to build multi-page applications, and it feels like a completely different way of working with AI. The visual context gives the agent so much more information than text prompts ever could.

Still early days, but I think this might be how we'll all be building with AI in the future. Would love to hear what you think.

https://www.youtube.com/watch?v=19FEqqSq3y8

How to survive as an indie developer for 20 years

https://www.pcgamer.com/gaming-industry/game-development/how-to-survive-as-an-indie-developer-for-20-years/
1•ohjeez•44s ago•0 comments

Gemini 2.5 Pro Capable of Winning Gold at IMO 2025

https://arxiv.org/abs/2507.15855
1•yegle•1m ago•0 comments

Historical Performances of Vingegaard and Pogacar on Mont Ventoux

https://lanternerouge.com/2025/07/22/historical-performances-of-vingegaard-and-pogacar-on-mont-ventoux-tour-de-france-2025-stage-16/
1•nafnlj•2m ago•0 comments

Better Software Conference: Finish Your Software [video]

https://www.youtube.com/watch?v=EGLoKbBn-VI
1•quelsolaar•2m ago•0 comments

Free Fire

https://ydrgfa-ip-188-208-105-105.tunnelmole.net
2•andreinuhuh•7m ago•0 comments

Branch Coverage Won't Prove the Collatz Conjecture

https://concerningquality.com/collatz-conjecture/
1•Bogdanp•8m ago•0 comments

Gnome Foundry Taking Shape as "An IDE in a Box" with CLI Tooling

https://www.phoronix.com/news/GNOME-Builder-Foundry-2025
1•mikece•8m ago•0 comments

Presidential AI Challenge

https://www.ai.gov/initiatives/presidential-challenge
1•cebert•13m ago•1 comments

DreamHAT+ Enables 60 GHz Radar Sensing on Raspberry Pi 4B and 5

https://linuxgizmos.com/dreamhat-enables-60-ghz-radar-sensing-on-raspberry-pi-4b-and-5/
3•ndsipa_pomu•15m ago•0 comments

Persistent Peer IDs in libp2p JavaScript

https://gist.github.com/Realman78/028b99a46de60ad4a169ae4107939237
1•Realman78•17m ago•0 comments

Neuralink Sees $1B of Revenue by 2031 in Expansion

https://www.bloomberg.com/news/articles/2025-07-23/neuralink-sees-1-billion-of-revenue-by-2031-in-vast-expansion
1•htrp•20m ago•0 comments

Spent 15 minutes building an overengineered password generator for fun and chaos

https://github.com/nabbonoushad/chaotic-password-generator
1•darad•24m ago•1 comments

War on hidden motors goes undercover

https://www.reuters.com/sports/war-hidden-motors-goes-undercover-2025-07-23/
1•fortran77•24m ago•0 comments

Ask HN: Are puzzle games more important now given what modern AI does for us?

2•amichail•24m ago•0 comments

I built a text to JSON local tool in GitHub Spark

https://github.com/login
1•tarasyarema•26m ago•1 comments

Shlide: Slide deck presentation tool written in pure bash

https://tangled.sh/@icyphox.sh/shlide
1•nerdypepper•27m ago•0 comments

The dark horse of AI labs

https://www.economist.com/business/2025/07/23/the-dark-horse-of-ai-labs
1•amirkabbara•27m ago•0 comments

ChatGPT outage for 3 hours – Ubuntu 22.04 had an automatic update to systemd

https://twitter.com/GergelyOrosz/status/1947745317237002441
2•greatgib•28m ago•1 comments

Show HN: ReceiptIQ Pro – AI receipt scanner that tracks spending/budgets (iOS)

https://receiptiq.me/
1•nichliu•28m ago•0 comments

Book Review: Nixon's Memoirs

https://justismills.substack.com/p/book-review-nixons-memoirs
2•surprisetalk•32m ago•0 comments

Generalized Hangriness: A Standard Rationalist Stance Toward Emotions

https://www.lesswrong.com/posts/naAeSkQur8ueCAAfY/generalized-hangriness-a-standard-rationalist-stance-toward
1•surprisetalk•33m ago•0 comments

Shallow Water Is Dangerous Too

https://www.jefftk.com/p/shallow-water-is-dangerous-too
1•surprisetalk•33m ago•0 comments

IQAir – Air Quality Maps

https://www.iqair.com/
2•surprisetalk•33m ago•1 comments

Docs for AI Agents

https://technicalwriting.dev/ai/agents/
1•kaycebasques•37m ago•0 comments

Release Notes for Safari Technology Preview 224

https://webkit.org/blog/17210/release-notes-for-safari-technology-preview-224/
1•feross•38m ago•0 comments

Microsoft Workers Rebel, Refuse to Work with IDF [video]

https://www.youtube.com/watch?v=2qx-WTePimo
6•DonnyV•38m ago•0 comments

SeaFile – High performance file syncing, sharing and more

https://github.com/haiwen/seafile
1•elisaado•41m ago•0 comments

TikTok content moderators in Germany strike over AI taking their jobs

https://www.euronews.com/next/2025/07/23/tiktok-content-moderators-in-germany-strike-over-ai-taking-their-jobs
2•layer8•43m ago•0 comments

Congressman Introduces New 'Stop AI Price Gouging and Wage Fixing Act'

https://casar.house.gov/media/press-releases/news-congressman-greg-casar-introduces-new-stop-ai-price-gouging-and-wage
3•Improvement•45m ago•0 comments

Trump supporters report higher levels of psychopathy

https://www.msn.com/en-us/health/other/trump-supporters-report-higher-levels-of-psychopathy-manipulativeness-callousness-and-narcissism/ar-AA1J8jKa
7•galaxyLogic•47m ago•0 comments