Announcing new releases and the latest information about ByteDance open source projects.

Joined December 2022
ByteDance Open Source retweeted
Less duplicate code. Smaller bundles. 📦 We've improved Rspack's chunking algorithm to reduce duplicate modules across chunks. In a large production project, this change resulted in:
• -2.53% less raw JS size
• -1.51% fewer chunks
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ByteDance Open Source retweeted
The integration between TanStack and Rspack continues to improve 🚀 Have you tried it yet? We’d love your feedback!
TanStack Devtools now officially support rspack! 🚀 And you can also make your trigger a floating bubble which you can move across your screen! Or just play with it and throw it around!
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ByteDance Open Source retweeted
Rslint v0.7 is here🦀 TypeScript-first, ESLint-compatible, and 30% faster than v0.6
Rslint v0.7 it out! ⚡ Based on TS 7 stable 📦 400+ built-in rules 🚀 30% faster than v0.6 🚀 Faster LSP feedback ✅ Better ESLint compatibility
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ByteDance Open Source retweeted
🦀 Rspack 2.1 is here! ⚡️ 16% faster builds than 2.0 ⚛️ Rust React Compiler: 7–13× faster than Babel 🎨 Improved built-in CSS 📂 import.meta.glob 🔵 TypeScript 7 RC support 🧩 Source Phase Imports
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ByteDance Open Source retweeted
One skill. Five platforms. Midscene Skills gives Claude Code & Codex eyes + hands across browser, desktop, Android, iOS and HarmonyOS. Same chat-driven prompt. No MCP setup.
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ByteDance Open Source retweeted
🌲Rspack's tree shaking just got smarter 🦀 Two recent optimizations remove more unused code: 1. Inlined booleans can make branch-local dependencies inactive 2. Namespace default re-exports now preserve property-level usage More precise bundles, less dead code
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Everyone is building AI agents. Very few are building the infrastructure needed to actually run and train them at scale. Today the veRL team at ByteDance open-sourced Uni-Agent: A unified framework for building, running, and training real-world agents. Why this matters: Most agent frameworks focus on orchestration. Uni-Agent focuses on infrastructure. It unifies: - agent execution - environment interaction - large-scale concurrency - RL training into one reusable stack. That means the same system can scale from: prototype → deployment → RL optimization without rebuilding the stack every time. The project is still early, but the direction is extremely promising for: - coding agents - browser agents - computer-use agents - large-scale agent training Open sourced by the team behind veRL (21k+⭐). Repo: github.com/verl-project/uni-… Would love feedback, contributors, and early adopters. #OpenSource #AI #AIAgents #RL #LLM #ByteDance
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🚀 Lance is released! Lance is a native unified multimodal model from ByteDance Intelligent Creation Lab, supporting image/video understanding, generation, and editing in a single framework. With 3B activated parameters, Lance explores multi-task synergy for unified multimodal modeling, covering X2T, X2I, and X2V tasks with strong performance across generation, editing, and understanding benchmarks. Check it out and , give a star: Homepage: lance-project.github.io arXiv: arxiv.org/abs/2605.18678 HuggingFace: huggingface.co/bytedance-res… GitHub: github.com/bytedance/Lance #Lance #MultimodalAI #UnifiedMultimodalModel #ImageGeneration #VideoGeneration #OpenSource
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ByteDance Open Source retweeted
🦀Rstest 0.10.0 released! 🚀 Faster. Leaner. More reliable~ ⚡ worker_threads-based pool 🎯 --changed / --related test runs 💾 Persistent build cache 🧠 Memory-aware worker spawn 🔇 Silent passed test consoles 🔍 Profile test runs with --trace
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ByteDance Open Source retweeted
Two years building Midscene.js, we made a bet we should've made earlier: UI automation has to move from "reading the DOM" to "looking at the screen." So in our 1.0 release (Dec 2025), we dropped DOM compatibility entirely.
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Inside AIO Sandbox (Part 3): Integrating AIO Sandbox with NVIDIA OpenShell medium.com/p/inside-aio-sand…
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ByteDance Open Source retweeted
🦀 Install any of Rstack Skills instantly: ``` npx skills add rstackjs/agent-skills --skill <skill-name> ``` 15+ Skills covering debugging, tracing, upgrading, and analyzing
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ByteDance Open Source retweeted
Rspack 2.0 has landed 🦀 The growth since 1.0 is wild: 📈 100K → 5M weekly downloads ⚡️ ~100% faster builds 📉 devServer: 192 deps → 1 And new stuff hits hard: 🧩 Pure ESM core, modern ESM library output ⚛️ Experimental RSC support ... Lean, Fast, Modern Web Bundling 🚀
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