If you are a ruby shop, I&#x27;d look at fatfreecrm:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;fatfreecrm&#x2F;fat_free_crm" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;fatfreecrm&#x2F;fat_free_crm</a>