Please note that Rondo will not work on any MacOS greater than 10.14. It is also completely unsupported.
To license Rondo please enter the following info into the corresponding fields of the licensing dialog box. This can be found under the ‘Rondo’ Menu:
Name: Rondo Free
License No: 860T23-GXRLF-QRPED-71CYP-NC9N9-XQ65
The text must be entered exactly, as the license code is based on the name and email address. Best to copy and paste, avoiding extra spaces at each end.