040000 tree ac0a594f730003868a35eefb83d7cf49645cf589	impl
040000 tree bf6ff56023fdeaec10de2e995fef4309a9b172fe	installer
040000 tree a3865b01e8af84bb5f665782eca6da0c72881431	starter
040000 tree dea9f173ef77a66f634a098a7ac39ac2bd2f7cdf	versioning