I'm sorry if my question is repeated, but I have searched and read allot about this topic and kind of confused and want to make sure at this point. I'm planning to use an open source tool that will be installed on my server, it will be online and users can have access to it. Does that implicate that I have to distribute the source code in this case?
Noting that the license is GPL 3 If so, how people are using Drupal for example? as I understand this situation, they must distribute their modifications?