(without LightBurn installed):

How To Install A Lightburn Material Library (In Under 30 seconds!)

The LightBurn forum and Reddit are goldmines for user-shared libraries for specific CO2 and Diode lasers.

Save your .clib library file into a folder synced with Google Drive, Dropbox, or OneDrive .

: Since many "downloadable" libraries are community-made, the quality of nodes and paths can vary. Always check for "messy" vectors before hitting start on your laser. Path Linking

After launching the portable version of LightBurn, accessing the library typically involves navigating to a section of the software dedicated to libraries or resources. Here, you might need to specify the path to the library files if they are not automatically detected.