Playing early dev stages

I have started loving Stonehearth again, but I was late to the earlier stage and want to experience these earlier stages. I don’t care that they will be buggy but I want to see and even play earlier stages if possible. But I don’t know if this is even possible.

On steam the earliest you can go to is legacy_vista - A19 only, no further support in Beta. but that it, and trust me. earlier then that sould be a waste as not alot was added until A16 when alot of actual items and roofs got fix proper enough