add betterdefaults

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
Update centralized config

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
add defuns

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>
add el-get

Signed-off-by: Sebastien Varrette <sebastien.varrette@uni.lu>