Interactive command-line tutorials with WebAssembly
summary
Sandbox.bio runs real C/C++ command line tools compiled to WebAssembly with emcc/Emscripten, so awk jq and GNU coreutils execute entirely in the browser with no server compute; the UI uses xterm.js and a IndexedDB-backed virtual FS created by Emscripten to persist edits. This makes the tutorials cheap to scale, responsive and safer, but compiling can fail for threads, SIMD variants, inline assembly or sockets and very large datasets still overwhelm the browser.
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chapters (13)
- 0:00Introduction
- 0:58What is sandbox.bio
- 2:03WebAssembly basics
- 3:51Why WebAssembly is powerful
- 5:18Compiling with Emscripten
- 8:28Challenges compiling to WASM
- 9:54CLI tools in browser
- 12:25WASM vs server execution
- 14:54Advantages of using WebAssembly
- 15:57Disadvantages and limitations of WebAssembly
- 17:04When not to use WASM
- 19:32WASM outside browser
- 21:40Resources and closing
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