Hi,
Lastools, to my knowledge is pc based. Laszip, according to this page, can be 
complied for Mac https://laszip.org/.  

The latest version of QGIS supports Lidar and I know that the OSGEO4W does 
install the pdal library. PDAL contains many lastools like functions with the 
added bonus of being OpenSource.  I expect that this would also be installed 
with the Mac QGIS installer.  If you install 3.20 on Windows, make sure you 
make a fresh install using the latest installer.  You cannot update a old 
installation in an existing folder.

Sorry for not being too precise, I have not yet played with the new Lidar tools.

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 26 août 2021 à 06:29, Maria Shinoto <[email protected]> 
> a écrit :
> 
> Hi, 
> 
> I have to shrink 9 larger LiDAR data sets with LAStools to LAZ. 
> 
> Now I am working on a Mac (Intel; Catalina) and do not know how I should get 
> LAStools, the zip-command in particular, running.
> 
> With web search I only find entries that are 7 or so years old, and I am not 
> sure, whether these tips still works. 
> 
> I use the Terminal on Mac, have Parallels with Windows 10 installed and could 
> try it that way as well. Or is there a solution with QGIS? (I am preparing an 
> upgrade from 3.12 to 3.20)
> 
> Thanks a lot, 
> Maria
> 
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