I'm hoping the librem 5 goes well. I'm tired of Google and Fdroid, I just want to be able to pull up a shell and install whatever I want.

Well, F-Droid already is the free alternative (to the Play Store). Maybe we'll see another FOSS app store pop up because of this, but I won't count on it. People may start their own app store projects, then quickly cave once they realize what a large undertaking they signed up for.

The alternative is of course to host your own repo. These can be added to the f-droid client.