How rex detects your project language and runs the right CI command with zero config. Deep dive into the implementation.
The problem
Every time I clone a repo, I have to figure out how to run it.
Go project? go test ./... — unless it uses make test
Node project? npm test — unless it uses pnpm or yarn or bun
Rust? cargo test. Python? Could be pytest, python -m unittest, or poetry run pytest.
rex detects your project stack and runs the right command. Zero config. One binary. 12 ecosystems.
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