COMING
More Systems
Future language learning, automation, and knowledge infrastructure notes can live here in the same modular style.
archive scaffold
SYSTEMS
Systems
Personal infrastructure, language-learning systems, agents, code, and small machines.
LANGUAGE SYSTEM 01
Korean Grammar System
A 390-point Korean grammar library spanning Levels 1–6, organized by level, function, confusable forms, and random review.
— grammar points →
LANGUAGE SYSTEM 02
Japanese Grammar System
A source-traced index of 1,016 Japanese grammar points spanning JLPT N1–N5, with textbook cross-references and recall review.
1,016 grammar points →
LANGUAGE SYSTEM 03
Korean Vocabulary System
A 3,823-entry Korean vocabulary library from Yonsei Korean 1–6, with searchable sources, favorites, and browser-local FSRS review.
3,823 vocabulary entries →