If you happen to see this error after upgrading your SliceHost account, be calm.
ActionView::TemplateError (Define INLINEDIR or HOME in your environment and try again)
The simple solution is to add an environment declaration to your environment/production.rb file:
ENV['INLINEDIR'] = '/path/to/.ruby_inline'
Once that was set, we were in business again… whew!
Here's a relevant reference that took a while to find:
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