Lossless library at home and lossy on the go. Is there a proper way to do this?

[Popkornium18]

I have my lossless collection on my NAS and listen to the files at home with mpd. I transcode my whole library to a lossy format so that it doesn't use too much space on my notebook. Is there a clean way to switch between the lossless library and the lossy library? Both contain the exact same songs.

Right now I have two config files, one for the lossless library and one for the lossy library. I wrote a shell script to check if I can see my routers MAC and if so it uses the losssless library config when starting mpd and if not it uses the lossy config. That works, but seems like a stupid way to achieve this. Is there a proper way to switch libraries like this? Maybe two separate instances?