Solved:

Run the following in terminal to install libglfw3

sudo apt install libglfw3

Hi

I am running linux mint. I installed pure data via terminal.

I installed Gem from the pure data 'deken - Find externals' window. The version is 0.94-snapshop, uploader iembot, Date 2024-11-30 17:07:39.

Placing the [declare -lib Gem] object appears successful as it appears the about text in the console window (i.e., version number, author, homepage etc.)

However,
After placing a gemwin object, I receive the following red text in the console.

/home/sonny/Documents/Pd/externals/Gem/gemglfw3window.pd_linux:libglfw.so.3: cannot open shared object file: No such file or directory
/home/sonny/Documents/Pd/externals/Gem/gemglfw3window.pd_linux:libglfw.so.3: cannot open shared object file: No such file or directory
gemglfw3window
... couldn't create