Update runner version (Xemu)

Possibly noobish question, I added xemu to Lutris, but I noticed that it’s not the latest version (0.7.111 instead of 0.8.134 on the official website).
Do I need to set up the custom runner in Runner Options? What should I point it to? And is it better to use the Flatpak version or the ubuntu PPA one?
Thanks!

Do I need to set up the custom runner in Runner Options?

exactly! use “custom executable” field