And/or explicitly publish a Proton Drive API repo. This would allow third party developers to support Proton Drive. The rclone linux application is a great exemple, as they state that their Proton Drive support is limited due to this missing API. If Drive's app is open source, this API should be publicly maintained as well.
https://rclone.org/protondrive/

For everyone waiting or over it, here's some alternatives I guess. I've heard good things about Filen, but I don't really know.

pCloud: A Swiss-based cloud storage service that offers end-to-end encryption, zero-knowledge protocol, and a native Linux client. It provides up to 10 GB of free storage and offers a paid subscription with great storage limits.

MEGA: A cloud storage service that offers end-to-end encryption, zero-knowledge protocol, and a command-line tool for Linux. It provides up to 20 GB of free storage and offers a paid subscription with additional features.

Icedrive: A cloud storage service that offers client-side encryption, zero-knowledge protocol, and a native Linux client. It provides up to 10 GB of free storage and offers a paid subscription with additional features.

Tresorit: A cloud storage service that offers end-to-end encryption, zero-knowledge protocol, and a native Linux client. It provides up to 3 GB of free storage and offers a paid subscription with additional features.

Filen: A cloud storage service that offers end-to-end encryption, zero-knowledge protocol, and a native Linux client. It provides up to 10 GB of free storage and offers a paid subscription with additional features.

Internxt: A cloud storage service that offers zero-knowledge encryption, end-to-end encryption, and a native Linux client. It provides up to 10 GB of free storage and offers a paid subscription with additional features.

I really hope you will release the Linux client soon. You are privacy focused company, it doesn't look good if you don't support privacy focused and open source operating systems.

Official rclone support or a proper Linux application (preferably with a scriptable CLI) would make this so much more useful and would allow me to upgrade to a paid plan.

I'm on an old Mac that is going to be phases out of security updates in a year. Transitioning to linux after this. Last month I got proton for email and drive. If there's no drive app on linux by then I guess I'll cancel.

I now have to run a dedicated Windows file server just to be able to access Proton Drive (via network sharing) from my main PC (which is Linux Mint). That actually works, but it is getting ridiculous. Come on, people. :)

Absolute must for my daily workflow please.

Please make this happen! Now Proton is even blocking accounts using rclone, why? That's really bad user experience.

This is the only thing refraining me from switching to Proton definitively. I'm still paying another non-European provider

We are a lot of linux systems administrators in my circle, who all use protonmail since its superior in terms of privacy and security.

The only reason each and every single one of us do not have full payed accounts is the blatant lack of linux syncing support.

It would be a match made in heaven should you implement this feature.

Please consider implementing this.

Seriously Proton? How long have we been waiting for this?

Did you not notice the seismic shift away from closed source on November 5th?!

Will you maintain your position in the market? Or will someone else figure it out?

GET TO WORK!

I've switched my desktop over to Linux. Was surprised there's not a client for this already.

It doesn't have to be an Apt package in my opinion. Even an AppImage or binary would be fine.

Just adding my 2 cents. Having made the permanent switch from Win 10 (as it enters EOL) to Linux and wanting nothing to do with MS's dystopian plans for full-time recording of my system, having a ProtonDrive client on Linux would allow me to fully justify my Unlimited/Duo subscription and would allow me to eliminate my dependence on other paid cloud storage solutions.

There are no tenable business file sharing platforms without considerable loss of privacy and security, having PD for Linux-based OS's would make all the difference.

Proton business plan users for years.

I have been a paid protonmail user for almost 4 years now. This would be an amazing feature as i only use Linux. It would help me backup stuff from my laptop and home server quite well. Please consider this quick.

I just moved over to Proton, thinking it could replace all of my gsuite bits and then some but missed that there’s no drive client for Linux yet.

To truly ditch Google having it would be critical!

The fact it doesn´t have a Linux client is a game changer in my case, so I am opting out for other providers :(.
If they got a full working linux client, I will happily come back.

I'd be pleased with at least a rsync integration

Why is there still no native client for Linux after all these years? Proton constantly claims to be for privacy and an alternative to Big Tech - but treats the only free platform with complete neglect!!!

You want me to sign up for an expensive subscription? I would - like many others - but as long as I don't have a native all-in-one solution with mail, calendar, VPN AND Drive for Linux, I can't and won't.