I did something similar for an RSS reader I was building based on bayesian filtering, a col-4 column on the right with the "live" feed and a main col-8 column w

I did something similar for an RSS reader I was building based on bayesian filtering, a col-4 column on the right with the "live" feed and a main col-8 column with the filtered feed, meaning all the matches. It looked pretty good in landscape mode.