Would there be Steam keys for previous owners?

This is one of the comfiest game i know and i was going to play it again on Steam Deck but seems that it's not supported. Game just keeps closing at the start of it... Will there be steam deck support?

Any plans for achievements to be implemented in the game later on? :) I, and many others, would greatly appreciate that! ^^ It would increase the sale of your game. :) Thanks in advance!

I feel bit a bit silly for asking, but where's the soundtrack? I purchased the Soundtrack Edition and it's listed as installed under the DLC, but I can't actually find it anywhere.

anybody got a clue ?