I love subsonic because its free and GPL software. After installing my subsonic server I immediately replaced ads with my own fun images. It wasn’t until after I wanted to use the Android app to access my music that I found I had to donate for a license.
Take a look at how their donate page passes your email and key…You may notice that it’s doing a hash. SettingsService.java line 586 for my version.
The hash is MD5 and below I’ve added a sample key for your testing.
email@example.com = 64e1b8d34f425d19e1ee2ea7236d3028
echo –n firstname.lastname@example.org |md5sum is your friend.