Possible typos
unstable/wlr-output-management-unstable-v1.xml
<arg name="refresh" type="int" summary="vertical refresh rate in mHz"/>
...
<arg name="refresh" type="int" summary="vertical refresh rate in mHz or zero"/>
s/mHz/MHz/ ?
unstable/wlr-output-power-management-unstable-v1.xml
<entry name="invalid_mode" value="1" summary="inexistent power save mode"/>
s/inexistent/nonexistent/ ?