OpenXcom Nightlies - how to install language translations ?

[aziza]

OpenXcom Extras Languages Translations have 4 folders:
\latest translations\*.yml
\latest translations\openxcom.openxcom\*.yml
\latest translations\openxcom.x-com-1\*.yml
\latest translations\openxcom.x-com-2\*.yml

and

OpenXcom Nightlies have 3 folders:
\OpenXcom\common\Language\*.yml
\OpenXcom\standard\xcom1\Language\*.yml
\OpenXcom\standard\xcom2\Language\*.yml

which folders from translations should be copied to which folders in OpenXcom ?