Concepts

If you arrived here directly, the role pages curate which concepts each role needs to ground first.

The reasoning behind the dashboards. Two parts:

• Accounting — banking primitives the L1 invariants and the per-app sheets all assume the reader already understands (double-entry posting, escrow / suspense, sweep-net-settle, vouchering, eventual consistency, open vs. closed loop).
• L2 model — the modeling vocabulary an integrator uses to declare an institution's shape: Account / AccountTemplate / Rail / TransferTemplate / Chain / LimitSchedule. Each page explains one primitive in isolation with a focused diagram pulled from the loaded L2 instance.

The intended user is anyone touching the dashboards or the L2 YAML for the first time: operators, integrators, ETL engineers, executives. Read these before the per-app reference material if a term ("rail", "chain", "supersession", "double-entry posting") is unfamiliar.