Just type shell commands as usual. But be aware, that not all shell commands are completely implemented and tested. Since Mac06 is still under development, we are strongly interested in users doing beta testing the releases coming before Mac06-1.0. This means, you will not have to pay again for Mac06-1.0 if you do a voluntary payment now. One big advantage of a site licence is that you do not need to keep track of how many people at your site are using the software.
Payment is fairly simple.
Enter your name, email-address, and the number of single user or site licences you want to donate. The software is not public domain. The current release is distributed as freeware but the right is reserved to change this in future releases as well as changing the pricing indicated above.