karpathy

"""
The most atomic way to train and inference a GPT in pure, dependency-free Python.
This file is the complete algorithm.
Everything else is just efficiency.

@karpathy
"""

import os       # os.path.exists
import math     # math.log, math.exp

M-rcus

Fansly Download

A work-in-progress userscript for downloading media from Fansly.

Installation:

1. Install a userscript extension (such as Violentmonkey).
2. Click on this link and your userscript extension should prompt you to install.
3. Go on a Fansly post, make sure to click on the post so the URL looks something like: https://fansly.com/post/123456789...
4. Click on the three dots top-right of the post. You should see a "Download media" option:

behindthegarage

The OpenClaw Operating System: A Layered Guide

How to build a complete AI collaboration system — from foundation to advanced patterns

The Core Insight

These aren't separate tools to adopt. They're an evolved system where each layer depends on the one below it.

Layer 1 is the unlock. Without the right AI behavior — autonomous execution, collaboration over reminders, prototype-first — nothing else works. You can't have effective workflow if your AI waits for permission on every file. You can't have group primers if your AI doesn't maintain docs automatically.

emschwartz

This is an OPML version of the HN Popularity Contest results for 2025, for importing into RSS feed readers.

Plug: if you want to find content related to your interests from thousands of obscure blogs and noisy sources like HN Newest, check out Scour. It's a free, personalized content feed I work on where you define your interests in your own words and it ranks content based on how closely related it is to those topics.

jacobsjo

Aquifers

Minecraft uses Aquifers to determine where to place liquids and air. Without aquifers all empty space below the sea-level would be filled with water. Aquifers thus allow caves to be dry.

Global Fluid Picker

The global fluid picker is used when aquifers are disabled and in some cases with aquifers enabled.

The global fluid picker is quite simple:

• air above the sea-level