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Before Composer can do anything for
you, it needs to be installed.

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If you're using work spaces,
we've got you covered.

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But if not, check the notes
associated with this video for

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detailed install instructions
based on your operating system.

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Either way, there are three things
to keep in mind when installing and

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using Composer.

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First of all,
Composer can be installed in two ways.

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Either on a per project basis, so

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that you can only access Composer
from your project directory.

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Or globally, so that you can
access Composer from any project,

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regardless of the location
on your machine.

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I recommend using the global install, so

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you don't have to worry about
this step for any other projects.

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Second, you want to install a version of
Composer that matches your development

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environment, not your
application's runtime environment.

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So if you're coding on a Mac,
be sure to install Composer for

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Mac, regardless of whether your
app runs on a map server or

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even on a virtual machine running Linux or
Windows.

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You’ll access Composer
commands from a terminal or

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command line in the actual
machine on which you're working.

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Which brings us to the third and final
point to keep in mind when using Composer,

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avoid committing downloaded packages to a
version control system or VCS such as get.

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Each developer will use Composer to
download those packages themselves.

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This helps keep your repositories tidy and

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easier to maintain by not cluttering
them with all the dependencies.