It's a planned feature he's working out the bugs for, it says in project description
Great game, although I find I barely ever get coins from weeds and I am unable to defeat the first boss. Do you know why this is?
If you use the itch desktop app it lets you download it
You can get the almost steam version here its Mindustry, this is the 3.5 archive sort of thing. The itch version doesn't have steam workshop and stuff tho so stil worth buying steam version