This ask is taking a page out of Touch Designer when it comes to saving.
Saving would increment the composition name where:
ProjectName.avc
Would reside in it's own folder with along with backup versions of its self:
ProjectName.1.avc
ProjectName.2.avc
.
ProjectName.100.avc
When you open ProjectName.avc, it actually open the last backup.
This would be helpful for permanent installations where we always want startup to point to ProjectName.avc