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Depending on specific versions of dependencies should also handle that, without needing to check in all dependencies. This is the approach generally taken when

• nulltype 12y ago
  The only difference is that finding the dependencies can be a pain if they changed location, or github is down, or the specific version isn't a specific git commit or something like that. Since there's no real difference, it doesn't really matter if you check in deps or have specific versions in a config file, either solution solves the underlying problem of having non-precise dependencies (i.e. just a github repo, or a version selector like >= 2.6)