Full training of the Rubik's program:

Installing Rubika on computer and laptop / Creating channel and group / Creating ID and channel link / Deleting channel / Securing channel / Setting password on Rubika / Setting username and changing photo / Fixing excessive use message / Add a new contact / Delete search results / Change chat background / Collect followers / Lock Rubika / Restore deleted messages / Find contacts / How to post a sheet / Earn money from Rubika / Rubino training

And dozens of other educational articles about Rubica and Rubino