> where is ecto even installed? For Mix.install you can optionally specify the cache directory. For regular projects they are in the deps folder. > The locat

> where is ecto even installed? For Mix.install you can optionally specify the cache directory. For regular projects they are in the deps folder. > The location of the cache directory can be controlled using the MIX_INSTALL_DIR environment variable. https://hexdocs.pm/mix/1.14/Mix.html#install/2 https://hexdocs.pm/mix/1.14/Mix.html#install/2 > download from where? https://hex.pm/packages/ecto https://hex.pm/packages/ecto Or you can specify a git commit, or a path if you want to alter it locally. > No way to keep track of what to change when mix create outputs something different next year. `mix.lock` keeps track of your resolved dependencies and should be checked in along with your code. Mix/Hex can also be provided the exact `==` versions rather than the `~>` or other Version specifiers https://hexdocs.pm/elixir/1.14/Version.html https://hexdocs.pm/elixir/1.14/Version.html