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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
560•klaussilveira•10h ago•157 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
879•xnx•15h ago•536 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
85•matheusalmeida•1d ago•19 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
11•helloplanets•4d ago•5 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
14•videotopia•3d ago•0 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
193•isitcontent•10h ago•24 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
191•dmpetrov•11h ago•87 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
303•vecti•12h ago•134 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
350•aktau•17h ago•170 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
348•ostacke•16h ago•90 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
76•quibono•4d ago•16 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
447•todsacerdoti•18h ago•227 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
19•romes•4d ago•2 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
48•kmm•4d ago•3 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
246•eljojo•13h ago•149 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
381•lstoll•16h ago•259 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
226•i5heu•13h ago•171 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
107•SerCe•6h ago•88 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
42•gfortaine•8h ago•12 comments

Zlob.h 100% POSIX and glibc compatible globbing lib that is faste and better

https://github.com/dmtrKovalenko/zlob
7•neogoose•3h ago•6 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
64•phreda4•10h ago•11 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
133•vmatsiiako•15h ago•59 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
262•surprisetalk•3d ago•35 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
22•gmays•5h ago•3 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
164•limoce•3d ago•87 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1036•cdrnsf•20h ago•429 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
14•denuoweb•1d ago•2 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
57•rescrv•18h ago•19 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
86•antves•1d ago•63 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
21•denysonique•7h ago•4 comments
Open in hackernews

Show HN: App.build, an open-source AI agent that builds full-stack apps

https://www.app.build/
90•davidgomes•8mo ago

Comments

davidgomes•8mo ago
OP here, everything is available on GitHub:

- https://github.com/appdotbuild/agent

- https://github.com/appdotbuild/platform

And we also blogged[1] about how the whole thing works. We're very excited about getting this out but we have a ton of improvements we'd like to make still. Please let us know if you have any questions!

[1]: https://www.app.build/blog/app-build-open-source-ai-agent

ivape•8mo ago
Probably not the question you want to hear, but, what template or css lib is that for the landing page? I'm really in love with it.
davidgomes•8mo ago
Also open-source: https://github.com/appdotbuild/website.
ah27182•8mo ago
The CLI for this feels extremely buggy, Im attempting to build the application but the screen is flickering like crazy: https://streamable.com/d2jrvt
davidgomes•8mo ago
Yeah, we have a PR in the works for this (https://github.com/appdotbuild/platform/issues/166), should be fixed tomorrow!
ah27182•8mo ago
Alright sounds good. Question, what LLM model does this use out of the box? Is it using the models provided by Github (after I give it access)?
davidgomes•8mo ago
We use both Claude 4 and Gemini by default (for different tasks). But the idea is you can self-host this and use other models (and even BYOM - bring your own models).
igrekun•8mo ago
If you run locally you can mix and match any anthropic / gemini models. As long as it satisfies this protocol https://github.com/appdotbuild/agent/blob/4e0d4b5ac03cee0548... you can plug in anything.

We have a similar wrapper for local LLMs on the roadmap.

If you use CLI only - we run claude 4 + gemini on the backend, gemini serving most of the vision tasks (frontend validation) and claude doing core codegen.

csomar•8mo ago
Average experience for AI-made/related products.
ecb_penguin•8mo ago
Exactly. Non-AI projects have always been easy to build without issues. That's why we have so many build systems. We perfected it the first try and then made lots of new versions based on that perfect Makefile.
zihotki•8mo ago
Important part of the context missing or was cut off - it's for building apps on top of the Neon platform (PostgreSQL open source SAAS)
gavmor•8mo ago
ie inextricably coupled to their services? Or is it a matter of swapping out a few "provider" modules?
igrekun•8mo ago
Completely agnostic, if you run it locally, we provide a docker compose, if you have other deployment preferences pointing to your DB is a matter of changing env var https://github.com/appdotbuild/agent/blob/main/agent/trpc_ag...

We have baseline cursor rules included in case you want to hack on this manually https://github.com/appdotbuild/agent/tree/main/agent/trpc_ag...

Where we are tied is the LLM provider - you will need to supply your own keys for Anthropic / Gemini.

We did a couple runs on top of Ollama + Gemma - expect support for local LLMs. Can't swear on the timeline, but one of our core contributors recently built a water cooled rig with a bunch of 3090s so my guess is "pretty soon".