Proton has a desktop client available that is based on Electron.
Its avaliable via, AUR and Snap, they also publish RPM’s and a .deb on their site.
What are the chances of getting an officially packaged version? Or would we normally wait for the creators to submit a package?
GIT: GitHub - ProtonMail/WebClients: Monorepo hosting the proton web clients · GitHub
AUR: AUR (en) - proton-mail
Proton DEB/RPM: https://protonapps.com/
Snap: Install Proton Mail on Arch Linux using the Snap Store | Snapcraft
I love the AUR, but this is one of the things I would rather trust with an officially packaged version.
If it needs help or support, I am happy to lend a hand where I can.
Not exactly what you’re after, the Proton Mail Bridge is available in the repos though if that works.
For as long as the application is in beta-state I don’t think it will happen as that would require more attention than usual for packages in the official repository.
I am fairly certain that when proton mail application get out of beta stage - an Arch Linux maintainer will provide it just like Proton VPN.
Besides that - it is available from AUR using
pamac build proton-mail-bin
This will download the ProtonMail-desktop-beta.deb and build the package.
As you have noted - it is based on Electron - a specific version of Electron and therefore you may - rarely - get a situation where Proton urge you to update - but the required version of Electron is not available on stable branch.
I had that issue a couple of weeks back on unstable branch.
I’m not so sure about that, but we’ll see.
By the way, I’m the one who initially added proton-mail and proton-mail-bin to the AUR. I eventually disowned both last year as maintaining them became more trouble than it was worth.
For a long time, Proton would not push the source code to the git repo when they released a new version for months on end. That also made it difficult to track when new releases were published. Then they moved it to a monolithic repo with the web client and updated it a little more often, but still not in a timely manner.
Unless that changes, I don’t envy anyone attempting to maintain the package.
That why I said
I have been diving into attempts to use their api for a proton drive client - deep hell …
It’s been in “beta” for almost two years now. Don’t hold your breath. 
Amateurs! The GNU HURD microkernel has already been in beta for 32 years now. 
