How I backup my supercollider code
How I backup my supercollider code: each time I type something AutoBackup saves the file to another folder. DropBox keeps a versioned remote copy of all extensions and code. Time machines does a backup to an external drive of all extensions and code. I have a local svn repository where I keep all versions of extension and code. This svn repository gets backed up by time machine too, and also is periodically dumped for backup. Yeah, I feel pretty safe !