There are several open-source tools that provide file version control, backup, and virtualization capabilities that can be run locally. Here are some of the best options you might consider:
### 1. **Git**
- **Overview**: Git is a widely-used distributed version control system that allows you to track changes in your files.
- **Backup**: You can push your repositories to remote servers like GitHub, GitLab, or Bitbucket for backup.
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