Created attachment 138943 [details] [review] Patch for this bug. Add Deepin Desktop Environment support. In DDE, a tools called `dde-open` is used to open preferred app. DDE use `Deepin` as a desktop name currently, but in some older version, it was `DEEPIN` or `deepin` dde-open is provide by dde-api, see [1]. [1]: https://cr.deepin.io/c/dde/dde-api/+/33751
patch committed, thanks.
Older versions of Deepin will be using also older versións of xdg-utils, won't they?
I agree. I'll put back the additional DE name matches, but keep the internal function names the same.
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