Fix (linux) overlay problem in kde

[vpsone]

Before Submitting This PR

Please confirm you have done the following:

• I have searched existing issues and pull requests (including closed ones) to ensure this isn't a duplicate
• I have read CONTRIBUTING.md

If this is a feature or change that was previously closed/rejected:

• I have explained in the description below why this should be reconsidered
• I have gathered community feedback (link to discussion below)

Human Written Description

This PR fixes the overlay issue in KDE Plasma. After PR #769, the overlay in KDE Plasma started behaving like a regular window, which prevents it from auto-pasting the response after a recording is finished. I have used v0.7.3 (the last version where the overlay worked correctly) for a long time and have not encountered any stability issues due to the gtk-layer-shell protocol. Here is a video of it:
Screencast_20260323_135432.webm

Here is how it looks after updating to v0.8.0:

Related Issues/Discussions

#769

Community Feedback

Testing

Screenshots/Videos (if applicable)

AI Assistance

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• AI was used (please describe below)

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[cjpais]

Unfortunately this fix cannot be approved because it will break the ability of the app to work on many systems. This is a much worse outcome than just the overlay being broken.

[vpsone]

But How I just reversed the changes in this pr #769 .

[cjpais]

yeah and you think that PR was not for a reason?! it fixes stability issues from what I remember

please let me know if I am wrong or misguided

[vpsone]

But I have not faced any issue; only I have to install the gtk-layer-shell dependency in the system. Here is the issue a user can get if they do not have the dependency installed.

and here after installing it (v0.7.3)

Additionally, PR #769 did not clearly explain the original problem, simply referring to it as a 'stability issue'.

[cjpais]

Please go ask in that thread, what the stability issue was in particular.

I'm not willing to trade one issue for another unless it's known across many users that it won't cause a regression.

I understand that there was a regression caused in that change, but a sample size of one especially for Linux is not enough.

[vpsone]

But It is already broken in v0.8.0 with two cancel button.

[vpsone]

If you can provide test build for this pr then I can ask others to test it.

[github-actions]

🧪 Test Build Ready

Build artifacts for PR #1121 are available for testing.

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[vpsone]

I have tried test build and it is working perfectly.

Screencast_20260323_173620.mp4

[xilec]

Tested the fix on my system — overlay works correctly: displays speaking/silence timers properly and doesn't interfere with pasting into the focused window.

My setup:

• NixOS
• KDE Plasma 6 / Wayland
• gtk-layer-shell installed as a dependency

Built and ran from this branch via nix run github:vpsone/Handy/fix-kde-overlay. No stability issues on startup or during use.

[VPS07]

I have tested build on fedora 43 kde plasma 6/Wayland and it is working correctly. I am facing no stability issues on startup.

[xilec]

Summarizing the current state for visibility:

• The fix has been confirmed working on two KDE Plasma / Wayland setups (NixOS, Fedora 43 and @vpsone's system)
• @boeserwolf hasn't had any GitHub activity since his PR fix(linux): improve Wayland startup stability #769 was merged, and hasn't responded to @vpsone's request to test with gtk-layer-shell installed

If anyone on CachyOS or Arch could test this branch, that would help rule out the startup stability issue from #769. Please make sure gtk-layer-shell is installed before testing.
@dadaphl @rogsme @theyonecodes — would any of you be able to give it a try?