At the moment, there is no way to unarchive an entry with a simple action on that resource. However, if you define a simple resource that uses the same storage under the hood (e.g same database table), but does *not* use the archival extension. You could then fabricate unarchival with something like this (this is not vetted, it is a pseudo-code example):
```elixir
# on the archived resource
# we model it as a create because there is no input record