Some companies use an isolated network or even the complete lack of a network as a security measure to protect from unauthorized access. Working on these systems can be a struggle but it is still possible, and perhaps even more important, to use a proper version control tool like Git.
By design Git works quite happily with no remote repository. You can branch, stage, and commit files just like normal.
mkdir testRepo cd testRepo git init touch test.txt git add --all git commit -m "Initial Commit"
This works great if just a single machine is used for development, but this is often not the case. Read More