As title says. Venn diagram of Linux users and space nerds has quite big intersection I guess ;)
Shouldn't be very hard since you use Unity. You can always release unofficial build first so community can test it (as Arma III guys did).
Steam discussion: https://steamcommunity.com/app/870200/discussions/0/1750106661704182804/
Previous discussion: https://jundroo.uservoice.com/forums/221664-jundroo-games?category_id=325255&query=Linux