q: ffcrm as engine to existing rails app as subdomain

[tom]

hi

i have a working rails3 app using devise where user can have projects etc..now what i want is:

- deploy crm under a subdomain as an engine to the current app

- authentication - how / what would i need to do here? can i grab the current_user if ffcrm runs on a subdomain?

- if a user adds "a project-owner" to his current "friends" i want this also to be copied to the ffcrm_accounts or leads

could someone pls give a few pointer on these points?

thx