To use plc4go import "github.com/apache/plc4x/plc4go/pkg/api" and use the driver manager driverManager := plc4go.NewPlcDriverManager() to register a driver e.g. drivers.RegisterKnxDriver(driverManager).
To install a tool e.g. plc4xpcapanalyzer install it like that: go install github.com/apache/plc4x/plc4go/tools/plc4xpcapanalyzer@latest