Have you run mautrix-imessage? I'm trying to work through the docs to understand if I could use it as a way to proxy my received imessages (and iOS text messages?) onto my windows device as they arrive.
Yes, right now I run it on an old MacBook Pro, that is otherwise sitting idle. It is very reliable. The only issue I have is HEIC attachments not being displayed on the Element desktop client (due to a lack of support in either Electron or Chromium, I forget what piece was ultimately to blame there.)