I use the "t" cli thingy (https://github.com/sferik/t) to pull a list of who I follow ("followings") and then create/update a list based on it.
I made a little tool a while back for splitting up your follows by their posting frequency, but setting "nlists" to 1 should accomplish what you asked for.
You do unfortunately need a twitter developer account. Also fair warning, as far as I know I'm the only current user, but works on my machine™.