Testing out distributions can be kind of tricky so here's a quick guide to get you up and running on Mac/Linux.
Installing a local Apache Solr instance
Read this article and follow the steps in another sandbox.
We don't care about the apachesolr module, just copying over the configuration files and getting the solr instance up and running.
Cloning the repository
You can clone the repository anywhere, as we're going to create a symlink to it later on.
Create a virtual host
I don't think anyone needs to be explained how to do this one.
Building the project
Copy the 3 makefiles ".make" into the document root specified in your vhost.
Build the project using drush make:
drush make build-drop_jobs.make
This command will take a while and will build the entire project from the makefile in the current directory.
Build the profile directory
First, create a symlink to the cloned repo with the alias "drop_jobs", inside your profiles directory.
ln -s ~/path/to/drop_jobs_repo ~/path/to/sites/drop_jobs/profiles/drop_jobs
Now, copy over the modules, libraries and themes from the "sites/all" directory to your profile directory so that they look as follows:
NOTE: For some reason the "Entity API" (entity) module gets copied alongside contrib, move it inside the contrib folder so its in the same place as all other modules.
I hope this was useful! If you have any questions or improvements please feel free to commend and edit this wiki!