go mod edit -replace github.com/orig/pkg v1.0.0=github.com/my/fork/pkg v1.0.0
go mod edit -replace github.com/orig/pkg v1.0.0=/local/path/onyourmachine
go mod edit -dropreplace github.com/orig/pkg v1.0.0
replace github.com/orig/pkg v1.0.0 => github.com/my/fork/pkg v1.0.0