I found a similar bracket on Thingiverse (https://www.thingiverse.com/thing:1890399) but I decided to make my own because:

1. the customizer wasn't working: /usr/local/bin/openscad/openscad: error while loading shared libraries: libCGAL.so.10: cannot open shared object file: No such file or directory

2. I wanted to add a truss to make the bracket stronger.

3. I enjoy making things in OpenSCAD...

NOTE: I did not use the referenced bracket OpenSCAD code so this is not a remix.