This is a short introduction to Go modules and dependency management, enough for day-to-day work.
It reflects Go 1.15; there are some changes in Go 1.16 (released after the recording was made) that you should note; see the release notes at https://golang.org/doc/go1.16#tools. I briefly mention one: that go build will no longer download modules by default; you must use go get or go mod tidy.
Slides at: https://github.com/matt4biz/go-class-...