One balance. Three currencies.
Francs, euros and dollars sit together. What came in and what went out is the history of the account.
Veritas AG

Every movement, in order.
When money lands, a webhook tells your books the amount and the currency. The balance and the history are the same record.
- 12 MarIn48'000 CHF
- 12 MarOut12'400 CHF
- 11 MarIn6'200 EUR
- 11 MarOut8'750 USD
Read the account. That is the ledger.
The history on Firma is the record. A webhook carries each arrival to your books.