pf2e.fyi
From Pathfinder Impossible Magic, which isn't enabled.

Greater Expanded Repertoire

FEAT 18
Archetype Runesmith
Prerequisites Runesmith Dedication

You have gained extensive knowledge in the art of creating runes. Add two runes of 9th level or lower to your runic repertoire. You choose these from the common runes on the rune list as well as uncommon or rarer runes you have access to.

Pathfinder Impossible MagicORC