Exploring how HarfBuzz can be integrated as a kernel module.
Current state, shapes a test using an embedded font,
[ 1665.734070] harfbuzz: init
[ 1665.734144] upem: 2048
[ 1665.734144] buffer size: 3
[ 1665.734145] glyph #1: ax: 1114, ay: 0, dx: 0, dy: 0
[ 1665.734145] glyph #2: ax: 1149, ay: 0, dx: 0, dy: 0
[ 1665.734146] glyph #3: ax: 1072, ay: 0, dx: 0, dy: 0