The F-Droid repo has the VPN , and the Izzy repo has Mail
F-Droid
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
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What is the Izzy repo? Is it trustworthy?
It's a repo of github releases. They aren't compiled like f-droid releases are. With f-droid, there's another set of eyes looking at things before they get to you. With Izzy, you have trust each individual dev. I prefer f-droid, but I use Izzy releases when the program is preferred, or there's no f-droid equivalent.
Does that mean since it comes from Proton's Github page, then it should be pretty trustworthy? Or at least as trustworthy as getting the apps directly from Proton?
The Proton VPN app is the only one included in the normal F-Droid repo. I don't know about any other repos for the other apps.
edit: typo
Can't you use Aurora Store?
I can, but I'm hoping to move away from google entirely and have an entirely open source phone