Little permissions are essential for open source software development to use the source codes. Even though it is a free source, specific usages and edits require licenses that must be adhered to. The legal aspect might need to confirm to mention particular copyright notices to be on a safer side. In few cases, a disclaimer in the end-user documentation may be enough to suffice the requirement. Later on, not adhering to stipulated legality and regulations may cause issues, which may be difficult to handle. For instance, alterations to product library might restrict in the absence of the requirements for licensing.