GitHub Trending Repos - July 21, 2026

July 21, 2026 — Rik Bon

Tags: github, opensource, development, ai, tools, programming

TL;DR: 1. xai-org/grok-build - SpaceXAI's coding agent harness and TUI. Fullscreen, mouse i; 2. Fei-Away/Codex-Dream-Skin - Codex Dream Skin; 3. CluvexStudio/Aether - No description provided.

This Week's Hottest GitHub Repositories

Weekly roundup of trending open-source projects. Each repository measured by star growth over the past 7 days.

xai-org/grok-build

Stars: 20990 | Forks: 3874

SpaceXAI's coding agent harness and TUI. Fullscreen, mouse interactive, extensible.

README Preview:

Grok Build (`grok`)

**Gr... ### [Fei-Away/Codex-Dream-Skin](https://github.com/Fei-Away/Codex-Dream-Skin) **Stars:** 11205 | **Forks:** 1147 Codex Dream Skin **README Preview:** # Codex Dream Skin

中文 · English

给 Codex 桌面端换一张会呼吸的脸。
外部主题 / 换肤工具 · 本机 CDP 注入 · 不改官方安装包

一张图，一种心情 · 写代码，也要有氛围感

非 OpenAI 官方产品。不修改 .app / app.asar / WindowsApps。

## 赞助商

# Wardrobe Your clothes, extracted and organized with gpt-image. [![License: MIT](https://img.shields.io/badge/license-MIT-191919?style=flat-square)](LICENSE) [![Node 22+](https://img.shields.io/badge/node-22%2B-191919?style=flat-square)](package.json) [See the original post →](https://x.com/cdngdev/status/2076812846793650485)

Quick start

```bash git c...

hoainho/img2threejs

Stars: 1145 | Forks: 94

Rebuild the object in a reference image as a code-only, procedural, quality-gated, animation-ready Three.js model. Token-efficient image-to-3D.

README Preview:

# img2threejs **Rebuild the object in a reference image as a code-only, procedural Three.js model.** Quality-gated, animation-ready, and deliberately token-efficient — reconstruction-by-code, not photogrammetry, mesh extraction, or downloaded art packs. [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE) [![Version](https://img.shields.io/badge/version-1.2.0-green.svg... ---

Comments? Tweet