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playground
§ live artifacts · runnable in-browser
No screenshots, no recordings. Each panel below is a live build of a real repository, executing in your tab right now. Edit the input, step the algorithm, draw on the canvas. Every number is measured in the repo and traced to a pinned commit.
Run a SELECT against a seeded table and watch it descend the real engine: parse to plan to a B+ tree page to the MVCC version chain, beside the Entropy-vs-SQLite numbers with the losses kept in.
Step BFS, Dijkstra, A*, and Greedy through one generated maze in lockstep. The heatmap is each algorithm's visited order; the readouts are the numbers that separate them: nodes expanded and path cost.
Type an expression and the real C++23 engine, compiled to WebAssembly, tokenizes it, builds the parse tree as a designed diagram, and returns the evaluated scalar. Parse and eval errors are first-class output.
Draw a digit and the real 784-128-32-10 MLP runs a forward pass in your tab for a top-three readout, beside the honest SIMD benchmark where OpenMP wins on large matrices and loses on small ones.