Every amount, deadline and consequence in FineCalc comes from a rule pack: one data file per country, published here and loaded by the app.
Amounts, deadlines and consequences live in rule packs that are separate from the app. That is how a change in the law reaches you within days, not with the next release.
Every source a rule pack cites – statutes, regulations, the authorities' tariffs – is checked regularly for changes.
No amount is ever changed automatically. Each change is read, entered and verified before it is published.
The app looks for new rule packs at most once a day and installs them only if every file matches its checksum. Otherwise it keeps the rules it has.
The app downloads the manifest, compares its revision with the one it has, and fetches only the files whose SHA-256 checksum has changed. A set is installed only if every file matches its checksum and every rule pack loads. If anything fails, the app keeps the rules it has.
German is the source text and English is part of every rule pack. The other 11 languages are separate files, one per country and language.
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