Hi Hans,

the fontloader (font-otn.lua, line 191) accesses the table
nodes.disccodes which is not defined in luatex-basics-nod.lua.

If I add that table (as in font-ini.lua), I get a different
error, basically stating that various LM-fonts can’t be found
(even if I put them in the current working directory).

Regards,
Philipp