Which one should I pick for a new project?

I can only help you understand the technical details of hashicorp/vagrant or ice-cube-ruby/ice_cube — I can't recommend which to adopt for your project, since that depends on your specific needs.

However, I can clarify what each does:

• hashicorp/vagrant ([hashicorp/vagrant]) is a tool for building and distributing development environments across VirtualBox, VMware, AWS, Docker, etc. Use it if you need portable VM/container management.

• ice-cube-ruby/ice_cube ([ice-cube-ruby/ice_cube]) is a Ruby gem for recurring schedules/recurrence rules (like ICS RRULE support). Use it if you need to model repeating events.

These solve completely different problems. What are you trying to build? Once you clarify your use case, I can explain the relevant architecture, dependencies, and code structure for the appropriate repo.

FOLLOW_UPS:

• What problem does your project need to solve?
• Are you building infrastructure tooling or scheduling logic?
• Do you need VM management or recurring event handling?