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docs: adds mobile programming languages #946

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merged 9 commits into from
Jan 16, 2025
16 changes: 16 additions & 0 deletions source/standards/programming-languages.html.md.erb
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Expand Up @@ -101,6 +101,22 @@ We used Scala in the early days of GDS. GOV.UK Licensing is the only remaining
application written in Scala but we've found it hard to support because of a lack
of skills in GDS. Do not use Scala for new projects.

## Mobile Development

For developing mobile apps, we use:
- [Swift](https://www.swift.org/) for [iOS](https://developer.apple.com/)
- [Kotlin](https://kotlinlang.org/) for [Android](https://developer.android.com/).

To give users the expected experience on their respective platform, we prefer to use the native languages over cross-platform solutions.

### Swift

When starting a new app project, you'll likely want to use the most recent version of Swift which will be installed with Xcode.

### Kotlin

We prefer to develop Android apps using the latest stable version of Kotlin.

## Using other languages

There will be sensible reasons to not follow the above guidance on languages.
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