There is really only one thing keeping me tied to Google stuff: the fact that I don't really know how to use Signal without having an Android'y device.

I actually don't want any kind of Android or Android-based device. I could use Graphene but I don't want to use that either.

I'd like to get less reliant on Signal too, but here's a challenge: is anyone successfully running Signal with *no* iOS or Android-type devices involved in the process and maintaining their account? How are you doing it?