make

• it's used since the history of Unix to build programs since 1976 - wow
• works on a Makefile which has steps/targets

.DEFAUL_GOAL := build

build: vet
    go build hello.go

vet: fmt
    go vet hello.go

fmt:
    go fmt hello.go

• Each target is specified with the command that runs for it, after the colon is the target that should run before it
• in the above example since default=build it will try and walk to build but will see vet
• so the sequence would be`
  • fmt -> vet -> build