Usage of -ldflags:go build -ldflags "-X main.varName=from_build" -o mycliInside your code:var varName stringfunc main() {  fmt.Println(varName) // prints "from_build"}Here's what I'm using for StaticBackend -v flag:go build -ldflags \ "-X github.com/staticbackendhq/core/config.BuildTime=$(shell date +'%Y-%m-%d.%H:%M:%S') \-X github.com/staticbackendhq/core/config.CommitHash=$(shell git log --pretty=format:'%h' -n 1) \-X github.com/staticbackendhq/core/config.Version=$(shell git describe --tags)" \-o staticbackendLinks:StaticBackend websiteStaticBackend GitHub repoBuild SaaS apps in Go (my online course and book)

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