A index of the various sysconf variables and what they do:
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commit-log: a filename to write a logfile of commited changesets
data-dir: the main datadir of smart 
commit: do we actually want to commit the operation
remove-packages: should downloaded packages removed after they where applied
prefer-removable: should we prefer removable over the network
dist-cache: do we use a cache
mirrors: 
mirrors-history:
force-channels: 
log-level:
channels: the channels known to smart
detectlocalchannels-maxdepth:
socket-timeout: 
max-active-downloads: 
%s-proxy:
default-localmedia:
sorter-profile:
