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Rise of AI Developer

https://sumant.bearblog.dev/rise-of-ai-developer/
1•paperplaneflyr•4m ago•0 comments

US set to ban Chinese technology in submarine cables

https://www.ft.com/content/8ac34fb9-6a51-4343-bfe4-fea566b4fa8c
1•mhga•6m ago•0 comments

Node.js VPS – Launch Your App in Minutes

https://3v-host.com/hosting/vps/for-developers/nodejs-vps/
1•Mahabharata•8m ago•1 comments

How can we negotiate with autocracies on the climate crisis?

https://www.theguardian.com/environment/2025/jul/18/climate-crisis-fossil-fuels-autocracies-authoritorian-countries
2•mhga•9m ago•0 comments

Ask HN: How to Argue Against AI Enthusiasts?

2•Vektorceraptor•13m ago•1 comments

Magic and Divination in the Age of AI

https://www.newstatesman.com/technology/2025/07/magic-and-divination-in-the-age-of-ai
1•Bremblefremble•16m ago•0 comments

Simon Wardley – From here to there and back again

https://www.youtube.com/watch?v=hEjjCI3kTM4
1•RebootStr•17m ago•0 comments

Celebrating 40 years of chemical drawing with ChemDraw

https://www.compoundchem.com/2025/07/18/chemdraw/
1•sohkamyung•24m ago•0 comments

Upcoming deprecation of GitHub Command Palette feature preview

https://github.blog/changelog/2025-07-15-upcoming-deprecation-of-github-command-palette-feature-preview/
1•going_north•26m ago•0 comments

What Scientists Learned Scanning the Bodies of 100k Brits

https://www.bloomberg.com/news/articles/2025-07-18/what-scientists-learned-scanning-the-bodies-of-100-000-brits
1•helsinkiandrew•32m ago•1 comments

We Turned Claude AI into an L5 Data Scientist [video]

https://www.youtube.com/watch?v=i7dXSsm6ULw
1•rented_mule•33m ago•1 comments

Show HN: Macuse – Give Your AI Superpowers on macOS

https://macuse.app
1•ahonn•37m ago•0 comments

No level of alcohol consumption is safe for our health (2023)

https://www.who.int/europe/news/item/04-01-2023-no-level-of-alcohol-consumption-is-safe-for-our-health
1•doener•41m ago•0 comments

Understand What Whales Are Saying

https://www.projectceti.org
2•doener•44m ago•0 comments

An Epicyclic Clock

https://sophiehoulden.com/randomstuff/epitime/
1•fanf2•46m ago•0 comments

Sensitive Wikimedia databases have reportedly been hacked and leaked

https://wikipediasucks.co/forum/viewtopic.php?f=5&t=3520
1•kurtreed2•46m ago•0 comments

When Root Meets Immutable: OpenBSD Chflags vs. Log Tampering

https://rsadowski.de/posts/2025/openbsd-immutable-system-logs/
11•todsacerdoti•51m ago•3 comments

H-Nets – The Future

https://goombalab.github.io/blog/2025/hnet-future/
1•cubefox•57m ago•0 comments

Firmware for the open source Teufel Mynd speaker

https://github.com/teufelaudio/mynd-firmware
1•morsch•59m ago•0 comments

Implementing a Fast Tensor Core Matmul on the Ada Architecture

https://www.spatters.ca/mma-matmul
2•skidrow•1h ago•1 comments

Engineering the End of Work

https://schmud.de/posts/2025-07-15-engineering-end-of-work.html
3•Bogdanp•1h ago•0 comments

Compiler Explorer: An Essential Kernel Playground for CUDA Developers

https://developer.nvidia.com/blog/compiler-explorer-the-kernel-playground-for-cuda-developers/
1•skidrow•1h ago•0 comments

Creating custom kernels for the AMD MI300

https://huggingface.co/blog/mi300kernels
1•skidrow•1h ago•0 comments

Show HN: FigForm – Feel the power of Figma when creating customized forms

https://figform.io
1•aarondelasy•1h ago•0 comments

Run a server at home using Raspberry Pi and Tunnelmole

https://softwareengineeringstandard.com/2025/07/14/raspberry-pi-server/
1•aussieguy1234•1h ago•0 comments

Best Chrome Extension to Remove Paywall in 2025

https://puupnewsapp.com/chrome-extension-to-remove-paywall/
1•CodeWanderer•1h ago•0 comments

What's happening to Matlab? Or, "The slow demise of the engineering toolbox"

https://blog.pictor.us/whats-happening-to-matlab/
2•bauta-steen•1h ago•0 comments

Mnemonic Devices in Illuminated Manuscripts

https://twitter.com/AHomelyHouse/status/1945940846559338597
1•Michelangelo11•1h ago•0 comments

Decoding Secrets: How military medals exposed Russia's SIGINT network

https://checkfirst.network/decoding-secrets-through-symbols-how-military-insignia-revealed-russias-hidden-sigint-network/
2•amaury•1h ago•1 comments

Aardvark

https://en.wikipedia.org/wiki/Aardvark
2•simonebrunozzi•1h ago•0 comments
Open in hackernews

Ask HN: Are LLMs good for implementing features in existing web apps?

2•endorphine•4h ago
So I have a typical medium-sized Rails codebase, but with significant code that's not the dead simple CRUD stuff. For example, it talks with third-party APIs, does user authentication, uses Postgres FTS plus some other things.

I'm bored to work on it lately, and I was thinking whether using an LLM I could implement new features for it.

Are any of the current models at this point yet? I guess it should need to have a big context so that it reads all the views/controllers/models.

If so, which tool would you use? Something like Codex or Claude Code?

Comments

saadn92•4h ago
I recommend Claude Code or Cursor, they’re usually the best right now. If you implement new features, be very specific. The more vague you are, the more it’ll just implement whatever it wants. Be wary, it also ends up breaking stuff sometimes, which can be annoying. But it does pretty well with Rails imo