The following command will install a necessary library. In the terminal, type the following line (without the quotes) and enter.
“sudo apt install libpulse-mainloop-glib0”
Acknowledge any prompts to allow the command to complete. You may have to reboot your Chromebook afterward.
The Lightburn .run file you downloaded needs to be moved/copied from the Downloads folder to your Linux files (/home/your_name) folder in order to change permissions… probably easiest done with the File Manager.
Then using the terminal again, type (without quotes)
“cd” (to insure you’re in /home/your_name directory)
and
“chmod +x LightBurn-Linux64-v0.9.14.run”
The file should now be executable and can be run using
./LightBurn-Linux64-v0.9.14.run
Once that completes you should have a Lightburn icon in your menus.