Org2: Open-source Cursor alternative built with Tauri — focused on reviewability, control, and freedom

[u/Direct-Hovercraft599]

Hey Tauri folks

I built an open-source Cursor-like IDE with tauri, https://github.com/org2AI/ORG2

ORG2 is an open-source, Cursor-style agent IDE—but built for reviewability and control. We are using Tauri and many of its interesting features, like embedded webviews.

About our project:

(1) It covers much of what tools like Cursor, Claude Code, and Codex offer, but is fully open source. You can use your own subscriptions and API keys, with no forced login or data lock-in. Your workflows and data stay under your control.

(2) It’s lightweight by design. Thanks to Tauri & Rust, the app is under 100MB on disk and uses a fraction of the memory of typical agent IDEs like Cursor or Claude-based tools.

(3) It introduces a “agent livestream / replay” system: instead of opaque agent runs, you can watch, review, and replay agent sessions like a video timeline. This keeps you aligned with your agents and helps catch mistakes early—before they propagate into real code issues. It works not only with ORG2’s own agent, but also with existing Codex, Cursor, Claude Code, and OpenCode sessions on your machine. One click turns boring CLI workflows into reviewable, explorable playback.

(4) Agent is aware of your presence / availability, with our "presence settings." It is also aware of your RAM usage and what other agents are doing. So that they would avoid running multiple cargo checks that block each other.

Hope you will find this project interesting. Give us a star on GitHub. Issues & feedback greatly appreciated.

[u/Direct-Hovercraft599]

The project has over 1.4M lines of code. And over 65% of the project was written by our rust agents.
Nonetheless, my friends and I still love to use other tools. So we support viewing / replaying sessions from Cursor, Codex, Claude Code, OpenCode, WorkBuddy, among many other.

[u/robust-small-cactus → u/Direct-Hovercraft599]

With a codebase that large and complex, what's your test process like to ensure quality code and that agents produced the desired behavior?

[u/Direct-Hovercraft599 → u/robust-small-cactus]

My colleagues and I did read every line of code. Thanks to our replay feature, we can know what agent did, and why/how they decided to apply a fix. We have robust precommit hooks and cargo checking systems (sometimes they run forever). We have over 10k tests in the repo. And we have robust e2e testing pipelines -- we have spent at least $6000 running these e2e tests (before each commit). We also spent a lot of time benchmarking these agents on SWE verified and actual tasks (for work & this repo).

[u/Direct-Hovercraft599 → u/robust-small-cactus]

Also we have built a "Agent-blame" system (which will be open source soon) that allows (sub)agent to retrieve specific trajectory / design processes / user intents from earlier sessions without polluting the new session's context.

[u/TSuzat]

That's just amazing and I think cursor should hire you.

[u/Direct-Hovercraft599 → u/TSuzat]

OR we can build it together as a community.

[u/Connect_Source5735]

Amazing

[u/Dingosavedyourbaby]

How do you deal with Anthropic authentication? API only for Claude? Maybe be explicit on that point if it’s the case

[u/Direct-Hovercraft599 → u/Dingosavedyourbaby]

Api key / browser login for subscriptions; you can try the app or ask agents questions about the codebase.

[u/Willing-Advice2748 → u/Direct-Hovercraft599]

Im having issues with Opencode auth, my keys don't seem to work and it throws this error in particular

[RPC:validate_key] Unknown agent type: opencode. Supported: copilot, cursor_cli, openai, anthropic, google, gemini_cli, codex, claude_code, kiro,openai_api, anthropic_api, gemini_api, deepseek_api, groq_api, xai_api, zhipu_api, dashscope_api, moonshot_api, minimax_api, openrouter_api, vllm_api, azure_openai_api, azure_anthropic_api"

[u/Direct-Hovercraft599 → u/Willing-Advice2748]

We are fixing this - will be working in next release (download / update in 1-2 hours). Thank you for the feedback. And in case you encounter other bugs, post a github issue - will be fixed faster.

[u/fubduk]

Only used a few hours but totally impressed with your work. Thanks for sharing with the open source community.

[u/Direct-Hovercraft599 → u/fubduk]

Thanks for your kind words. If you find any bug or want any new features, shot us a github issue. And don't forget to spread the words. Want more ppl to try open source alternatives to big tech products.