There is a new pull request by ardadem against master on the void-packages repository

https://github.com/ardadem/void-packages pr-flatpak
https://github.com/void-linux/void-packages/pull/40833

flatpak: update to 1.15.1.
* Switch to meson build-style.

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#### Testing the changes
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A patch file from https://github.com/void-linux/void-packages/pull/40833.patch is attached