I use Beeper to aggregate messaging from various platforms and for easy availability of text messages on my PC. It has a specific “Note to self” section that I’ve found useful for messaging myself.
At its core, Beeper is just a Matrix client with some pre-packaged bridges for common services (including SMS, MMS, RCS messages). You could probably do the same thing with an Element client.
We even passed a bill where I live (Washington state), but Congress hasn’t approved it so we’re stuck. Wonder what would happen if we just did it anyway. What is the U.S. government going to do, send the cops after our state legislature?