If a version is not added here, you can always put a request in for a .pocket conversion patch. Use the "Wishing Well" link on this page:
Yes, the start select site for patches and the request form are discontinued. It is probably still possible to request a conversion (from a couple people) in the Analogue Pocket related Discord servers.
The ROM is available on Homebrew Hub: https://hh.gbdev.io/game/soul-void