`go build` compiles Go source code into an executable binary.

• Produce a runnable file for deployment.
• Build for specific platforms, including cross-compiling.

• Build with the default output name:

    go build .
 

• Set the output binary name:

    go build -o app .
 

• Cross-compile for Linux (from macOS/Windows):

    GOOS=linux GOARCH=amd64 go build -o app-linux .
 

• binary /ˈbaɪnəri/: file thực thi
• cross-compile /ˌkrɔːs kəmˈpaɪl/: biên dịch chéo
• architecture (arch) /ˈɑːrkɪtektʃər/: kiến trúc CPU
• executable /ɪɡˈzekjətəbəl/: có thể chạy được