Ouch, no Linux support? :(
Viewing post in Slipways PC - final release date and roadmap comments
Unfortunately not, sorry. Supporting every additional platform is a big thing for a solo developer and Linux is uniquely challenging in how varied it is.
The Steam version does reportedly work well under Proton (their emulation platform), so you can try that way (and get a refund if it doesn't work to your satisfaction). I might tackle a dedicated Linux port after release, but can't promise anything for sure.