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Im getting a seg-fault since the latest update. Also is anyone else having scaling issues where this app always opens accross two screens (KDE Plasma)?

[2025-09-30][18:32:03][webview:zu@tauri://localhost/assets/static/main.cc65abff.js:2:656860][INFO] [Tauri::update] Checking for updates...
[2025-09-30][18:32:03][tauri_plugin_updater::updater][DEBUG] checking for updates https://proton.me/download/authenticator/linux/latest.json
[2025-09-30][18:32:03][reqwest::connect][DEBUG] starting new connection: https://proton.me/

(proton-authenticator:657017): Gdk-CRITICAL **: 07:32:03.361: ../gtk/gdk/wayland/gdkdisplay-wayland.c:1372: Truncating shared memory file failed: Invalid argument
[1]    657017 segmentation fault (core dumped)  proton-authenticator
** (WebKitWebProcess:657462): ERROR **: 07:32:28.197: WebProcess didn't exit as expected after the UI process connection was closed

admin@home-desktop ~ % proton-authenticator
[2025-09-30][06:04:45][webview:zu@tauri://localhost/assets/static/main.cc65abff.js:2:656860][INFO] [Tauri::update] Checking for updates...
[2025-09-30][06:04:45][tauri_plugin_updater::updater][DEBUG] checking for updates https://proton.me/download/authenticator/linux/latest.json
[2025-09-30][06:04:45][reqwest::connect][DEBUG] starting new connection: https://proton.me/
[2025-09-30][06:04:45][webview:zu@tauri://localhost/assets/static/main.cc65abff.js:2:656860][INFO] [db::setup] current=3
Gdk-Message: 09:04:45.816: Error 71 (Protocol error) dispatching to Wayland display.

I got a working source based package, proton-authenticator! It took a couple patches, and I'll work on upstreaming those.

As for a -git package, I can definitely make one of those too, but since it's a monorepo I think it would be rebuild many times unnecessarily when other projects have commits but authenticator stays the same. So, I'm not sure if that's worth it.

@rsm92 I heard back from Proton:

"You can find the source code for the Pass Authenticator desktop app for Linux here: https://github.com/ProtonMail/WebClients/tree/main/applications/authenticator After cloning the source code, you can build with the commands (at the root directory): yarn install yarn workspace proton-authenticator build:desktop If you get the error: Error: @rowsncolumns/charts@workspace:^: Workspace not found (@rowsncolumns/charts@workspace:^) during yarn install , then it's an issue from Proton Docs, which is another product, and we don't need it to build Proton Authenticator. So you will need to do the following workaround: 1. Reset the cache with the following commands: yarn cache cleanrm -rf node_modules yarn.lock 2. Open the file "applications/docs-editor/package.json" in a text editor and remove the lines starting with "@rowsncolumns" (lines 47 to 53): 3. Do the usual commands: yarn install yarn workspace proton-authenticator build:desktop

@AlphaLynx yes, I also thing that a source based package is the best, and it opens the possibility of a "-git" package.

I got a response from the proton support, telling me that the source code is the following: https://github.com/ProtonMail/WebClients/tree/main/applications/authenticator

I have no experience making rich client software from typescript, so probably it will be very time consuming without the build instructions... I'm no sure I'll take the time for it...

Anyways I hope it helps!

@rsm92 Oh, you're right. I contacted them too and I requested they host the source along with build instructions so a proton-authenticator package can be created. (I personally prefer source based packages than -bin, but maybe that's just me)

Best Regards

@AlphaLynx yes, it matches what I was thinking, the common code is available, and also the code for other systems like android and windows, but the one for Linux seems to be missing.

Maybe I'm too picky but I'll mark it as private until the proton team releases it. I'll contact them to get some feedback and put it here.

Best regards

@rsm92 I believe it is open source, as Proton says "Yes. all Proton apps, including Proton Authenticator, are fully open source. Anyone can inspect and verify our code." on their faq. Looks like it's in this monorepo, which has the GPL-3.0-or-later license, though I am not sure how the .deb is built as they do not have documentation for this.

@AlphaLynx, I think the license should be "Proprietary" since the source code is not available.

@imlostish and @JammySaga, I do not have the same issues. The sign in and device sync work perfectly and I'm unable to reproduce those bugs. As I mentioned earlier, https://proton.me/support/contact?topic=authenticator is probably the best place to report upstream issues. I'm happy to apply fixes to the packaging if I can, but these seem like problems with the app itself.