This Ruby script writes a VGA/EGA ("console") font file to stdout, based on a "hex" file as exported by gbdfed(1). I made this because I wanted wscons(4) to load Christian Neukirchen's super awesome "sq" font.
hex2vga infile input-height output-height > outfile
./hex2vga /path/to/sq.hex 13 16 > sq.816
To the maximum extent possible, I (Christian Koch) disclaim ownership of this code and dedicate it to the public domain.