A Go project is a module created with `go mod init`. The toolchain is one binary: `go run` compiles and executes, `go build` produces a static binary, `go test` runs tests, and `go vet` catches suspicious code. Dependencies are pinned in go.mod and verified through go.sum.
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1. Go Toolchain and Modules
go mod, go run, go build.
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1. Which file pins dependency versions?
2. Go binaries are typically…
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