Would wipe 3 dependency trees (15.0M) under ~/.cuppa/dependencies
(dry run; pass without -n to wipe)

  ------------------------------------------------------------------------------------------
      SIZE  LAST USED      REMARK     DEPENDENCY
  ------------------------------------------------------------------------------------------
     20.0M  today                     related dependencies for boost
                                      │   
     15.0M  today                     ├── wiping
      5.0M  today                     ├── remaining
                                      │   
     20.0M  today                     └── source archives
                                          │
     20.0M  today                         └── -✔- boost
     5.0M  today          would wipe         ├── ✔ 1.86.0
     5.0M  today          would wipe         ├── ✔ 1.87.0
     5.0M  today          would wipe         ├── ✔ 1.88.0
      5.0M  today                             └── - 1.91.0
  ------------------------------------------------------------------------------------------

Would wipe 3 trees freeing up 15.0M of disk space.
([source] keeps the match on source archives; unused GitLab boost/1.8* leaves stay.)

Verify with:

cuppa -Q -D --list-dependencies