ATM you can get it in the releases from [this repo](https://github.com/LouisMarotta/lemmur/releases).
Touch is inverse because the tablet I'm using isn't well supported by Linux.
Also, if you own a Pinephone, and want to help me gather some native screenshots to add to the flathub page, I'd be very grateful if you could message me.
This post lists the apps we added to the app list/LinuxPhoneApps.org in the first three months.
If you want to follow along as apps are being added and use a feed reader, https://linuxphoneapps.org/apps/atom.xml is your friend.