Commodore Mania BBS v7.01 - This is the latest and greatest version as of April 3rd, 20201.  Not really sure who this is by as the older 1986 graphic by Robert Martin is still on the disk.  This version has some great hardware improvements, such as support for wi-fi modems, SD2IEC and 2400 baud.  Although the BASIC source is included (Along with Blitz! to compile it) there is also a Github repository with the source in CBMPrgStudio format.

• Link to Github repo