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To support the full cargo tangle blueprint create --name my_project workflow—including smart contract deployment with Forge/Soldeer and compiling Tangle Blueprint Rust projects—all within a browser-based IDE, you’ll need a hybrid architecture that merges:

• WASM-based toolchains for Rust and Solidity
• Filesystem + container abstraction (via WASI, VFS, and maybe container2wasm or web-container)
• Persistent user workspace and streaming build logs/output

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🔧 Recommended Architecture

1. Rust Compilation in the Browser

You can support Blueprint compilation by integrating:

✅ Option A: wasm-cargo or rustc-wasm

• Compile a restricted subset of Rust to WASM via wasm32-wasi or wasm32-unknown-unknown
• Use webcontainer (from StackBlitz) to simulate the workspace and run cargo inside the browser with WASI syscalls.
• Track toolchains with wasmer/wapm or precompile toolchains into your WASM bundle

✅ Option B: Use a backend sandbox (e.g. Docker or Firecracker VM)

• Run cargo build, forge build, etc. in an ephemeral environment on your infra.
• Stream logs via WebSocket to your IDE.
• More reliable for full native builds including networking, Tangle SDK, etc.

🔄 Combine both: WASM for lightweight in-browser validation, backend for heavy builds (configurable per user/project)

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2. Forge/Soldeer Compilation in Browser

Forge and Soldeer are written in Rust and can be compiled to WASM.

Forge to WASM

• Compile foundry (includes forge) to WASM using cargo build --target=wasm32-wasi
• Package with wasmer-js or webcontainer for browser FS access
• OR run forge in Docker-in-browser using:
  • container2wasm
  • wasmer-js

⛔️ Limitations: solc and forge require syscalls and networking. Might be better to use your own WASMified Solc (like used in Remix IDE), or run it remotely.

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3. Docker in Browser

You have 3 paths to make this real:

✅ container2wasm

• Converts Docker containers to WASM modules using WASI
• Can sandbox the container for web execution
• Requires a WASM runtime in-browser (e.g., wasmer-js, wasmtime-py, or jco)

✅ wasmer-js

• Run WASM-compiled binaries (like Rust/C/C++/Forge) with WASI support in-browser
• Supports WASIX: fork/exec, TCP, pipes

🧪 webcontainer-core

• Entire browser-based Linux+Node environment
• Could build a Forge+Cargo pre-bundle in this

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🧩 IDE Integration

Frontend (UI)

• Monaco-based editor with split panes
• Project Explorer: detect *-bin, *-lib, and contracts
• Tabs: code / build logs / contract ABIs / deployed addresses
• "Run" button that builds project and deploys test instance locally

Backend or Worker (Sandbox)

• Workerized sandbox using wasm-cargo or webcontainer runtime
• API to trigger full cargo tangle blueprint create + cargo build + forge build
• Save compiled artifacts and contract deployments

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🔄 Proposed Workflow Steps

graph TD
    A[User: Clicks "New Blueprint"] --> B[cargo tangle blueprint create]
    B --> C[Creates folders + contracts + lib/bin crates]
    C --> D[User edits code in Monaco IDE]
    D --> E1[Build Rust via cargo WASM / backend]
    D --> E2[Compile & deploy contracts via Forge WASM / backend]
    E1 --> F[Show Rust build output]
    E2 --> G[Show contract address / ABI]
    F --> H[Stream build status + diagnostics to user]

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💡 Bonus Ideas

• Multi-tenant ephemeral backends: Use something like Railway/Firecracker to execute user jobs securely.
• Streaming compiler logs: Use @webcontainer/log-streaming or WebSocket log relays.
• Custom Forge-in-WASM build: Fork foundry and trim non-essential features to compile it more easily to WASM.

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Would you like a working prototype scaffold of the IDE code with WebContainer + Monaco + Cargo support + contract deploy UI?