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feat: add complete Dutch (nl) translation - #736

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BBakker26 wants to merge 3 commits into
MostroP2P:mainfrom
BBakker26:feat/dutch-translation
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BBakker26 wants to merge 3 commits into
MostroP2P:mainfrom
BBakker26:feat/dutch-translation

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@BBakker26

@BBakker26 BBakker26 commented Sep 21, 2026

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Adds Dutch as a seventh locale, following the same recipe as the Portuguese translation in 68b7e01: the ARB file, the language-name key in the other locales, the language selector, timeago and the background notification localization.

What is in it

  • lib/l10n/intl_nl.arb with all 1002 strings
  • dutch key added to en, es, it, fr, de and pt
  • Dutch in the language selector, nl registered for timeago, and handled in _getLocalizedNotificationText / _getExpandedText

System locale detection works through the existing localeResolutionCallback, as it did for Portuguese.

Three wording choices worth a second opinion

These are the places where following the English or German word for word would have produced odd Dutch:

  • "Take an order" has no established Dutch verb. The literal order nemen reads like a translation, and aannemen (the route German takes) sounds like a building contractor. Dutch uses accepteren for accepting someone else's offer, so the buttons read ACCEPTEREN, KOOP ACCEPTEREN, VERKOOP ACCEPTEREN.
  • "Bond" is rendered as borg throughout. The English source alternates between "bond" and "deposit" and de/fr/it each follow with two words, but Dutch has a single word that covers both — and bond in Dutch means a trade union or a debt security.
  • Em dashes are not Dutch punctuation. Where the source uses them, this translation uses a colon, a comma or a full stop.

Terminology otherwise matches the Dutch used by the Mostro macOS client (order, trade, sats, dispuut, solver, invoice, tegenpartij), so a user moving between clients meets the same words.

How it was verified

  • The repository's own CI Check workflow run on this branch: flutter gen-l10n, flutter analyze --fatal-infos and flutter test all pass
  • Placeholders, ICU plurals and line breaks checked key by key against intl_en.arb — no mismatches
  • No button label is longer than its German equivalent, so nothing that fits in German overflows in Dutch
  • take_order_screen.dart strips the literal ' Sats' from the title, so the Dutch title keeps that capitalisation like every other locale

Summary by CodeRabbit

  • New Features
    • Added Dutch as a selectable app language.
    • Added comprehensive Dutch translations across onboarding, trading, notifications, settings, messaging, and other app areas.
    • Added Dutch localization support for time-based messages and background notifications.
    • Added localized Dutch language labels in English, German, Spanish, French, Italian, and Portuguese interfaces.
    • Dutch is now available consistently throughout language selection and localized notification experiences.

- Add lib/l10n/intl_nl.arb with all 1002 strings
- Add the dutch language-name key to en/es/it/fr/de/pt
- Add Dutch to the language selector
- Register nl for timeago relative times
- Handle nl in the background notification localization

Wording follows the Dutch already used by the Mostro macOS client
(order, trade, sats, borg, dispuut, solver, invoice, tegenpartij). Three
choices a Dutch-speaking reviewer may want to check:

- "Take an order" has no established Dutch verb; the literal "order
  nemen" reads as a translation, so the wording is "order accepteren",
  which is what Dutch uses for accepting someone else's offer.
- "Bond" is rendered as "borg" throughout: Dutch has one word where the
  English source alternates between "bond" and "deposit", and "bond" in
  Dutch means a union or a debt security.
- Em dashes are not Dutch punctuation; where the source uses them, this
  translation uses a colon, a comma or a full stop.

System locale detection works through the existing
localeResolutionCallback, as it did when Portuguese was added in 68b7e01.

Verified by running the repository's own CI workflow on this branch:
flutter gen-l10n, flutter analyze --fatal-infos and flutter test all
pass. Placeholders, ICU plurals and line breaks were checked key by key
against intl_en.arb; no button label is longer than its German
equivalent.

Claude-Session: https://claude.ai/code/session_01UHusTa1y161bsvcYEcgSj2
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Configuration used: Organization UI

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Run ID: af2dc81e-18af-4559-a275-7a95f84116d3

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Reviewing files that changed from the base of the PR and between a8a753e and ef5d8bb.

📒 Files selected for processing (1)
  • lib/l10n/intl_nl.arb
🚧 Files skipped from review as they are similar to previous changes (1)
  • lib/l10n/intl_nl.arb

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Walkthrough

The app adds a complete Dutch translation catalog. Dutch becomes selectable, timeago messages support nl, and notification text uses Dutch localization.

Changes

Dutch localization

Layer / File(s) Summary
Dutch translation catalog and language labels
lib/l10n/intl_nl.arb, lib/l10n/intl_de.arb, lib/l10n/intl_en.arb, lib/l10n/intl_es.arb, lib/l10n/intl_fr.arb, lib/l10n/intl_it.arb, lib/l10n/intl_pt.arb
Adds Dutch translations across app flows and adds the Dutch language label to existing locale catalogs.
Locale selection and timeago registration
lib/shared/widgets/language_selector.dart, lib/core/app_bootstrap.dart
Adds nl to the language selector and registers Dutch timeago messages.
Dutch notification localization
lib/features/notifications/services/background_notification_service.dart
Uses SNl() for localized and expanded notification text when the language is nl.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~15 minutes

Change: Feature

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly and concisely describes the main change: adding the complete Dutch (nl) translation and locale support.
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A rabbit hops through Dutch delight
New words bloom in screens of light
Timeago ticks in tulip tune
Notifications speak softly soon
The language list grows bright
Localization lands just right

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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@lib/l10n/intl_nl.arb`:
- Line 1102: Update the mitLicenseText localization value to use single JSON
escapes so newline and quotation sequences decode as actual formatting rather
than literal backslash text. Apply the same correction to the equivalent English
license value, preserving all translated license content.

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ℹ️ Review info
⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 3e54c829-0e5d-43c6-9a34-3a1d1871dd76

📥 Commits

Reviewing files that changed from the base of the PR and between 637fd43 and a8a753e.

📒 Files selected for processing (10)
  • lib/core/app_bootstrap.dart
  • lib/features/notifications/services/background_notification_service.dart
  • lib/l10n/intl_de.arb
  • lib/l10n/intl_en.arb
  • lib/l10n/intl_es.arb
  • lib/l10n/intl_fr.arb
  • lib/l10n/intl_it.arb
  • lib/l10n/intl_nl.arb
  • lib/l10n/intl_pt.arb
  • lib/shared/widgets/language_selector.dart

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Comment thread lib/l10n/intl_nl.arb
BBakker26 added 2 commits September 21, 2026 15:03
relayUrlHint, relayErrorInvalidDomain and addRelayErrorInvalidDomain
used relay.voorbeeld.nl. Every other locale shows relay.example.com,
which RFC 2606 reserves and can never resolve; voorbeeld.nl is an
ordinary registrable domain, so a user who types the hint as shown
would connect to whoever owns it. Same fix as the review asked for on
MostroP2P/app#537.

Claude-Session: https://claude.ai/code/session_01UHusTa1y161bsvcYEcgSj2
"Koopt" / "Verkoopt" is the same form for "you" and "he/she", so in
the chat's trade information tab "Koopt 1.117 sats" can read as the
counterparty's side. Now "Je koopt" / "Je verkoopt", as the rest of the
file already does for the user's own role. Same fix as on
MostroP2P/app#537.

Claude-Session: https://claude.ai/code/session_01UHusTa1y161bsvcYEcgSj2
@BBakker26

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Friendly ping: this is ready for review whenever someone has time. Since opening it I added two small fixes in separate commits, matching the review on MostroP2P/app#537: the relay hints now use the reserved relay.example.com instead of a registrable Dutch domain, and the user's own side reads "Je koopt / Je verkoopt" so it can't be mistaken for the counterparty's. Happy to squash if you prefer one commit.

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