Two nullable columns and the v5 migration that adds them, ahead of the code that fills them, so the schema lands on its own and can be reverted on its own. MarmotInnerEvent.directMessageRecipientPublicKey is the outbound signal. The notary reads a queued row and has no other way to know a message is meant for one member rather than the room -- the plaintext is identical either way -- so this is what routes it into the gift wrap path. Inbound rows leave it null on purpose: the recipient is on the wrap's `p` tag, which is where every member reads it from, so a second copy on the row would be a second thing that can disagree. ChatMessage.directMessageRecipientPublicKey is what the transcript reads. Both lines a direct message can produce need it -- the one its two parties see, and the "sent a private message to Bob" line everybody else gets -- and holding it on the row keeps the view model off a join for a fact it already has to render. MarmotInnerEvent hand-writes equals and hashCode over every field, so both are extended too. A field missing from those is not a compile error and not a test failure; it is two rows that differ comparing equal, which surfaces much later as an upsert that does nothing. Room generates the migration -- verified as two ADD COLUMNs with no table rebuild, so nothing is copied and nothing can be dropped: ALTER TABLE `ChatMessage` ADD COLUMN `directMessageRecipientPublicKey` TEXT DEFAULT NULL ALTER TABLE `MarmotInnerEvent` ADD COLUMN `directMessageRecipientPublicKey` TEXT DEFAULT NULL Rows written before this come back null, which reads as "not a direct message" -- the only answer that is true of all of them. v5 is an AutoMigration entry rather than a hand-written Migration like MIGRATION_3_4 next to it, because that one rewrote data without changing shape and this one changes shape without touching data. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This is a Kotlin Multiplatform project targeting Android, iOS, Desktop (JVM).
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/composeApp is for code that will be shared across your Compose Multiplatform applications. It contains several subfolders:
- commonMain is for code that’s common for all targets.
- Other folders are for Kotlin code that will be compiled for only the platform indicated in the folder name. For example, if you want to use Apple’s CoreCrypto for the iOS part of your Kotlin app, the iosMain folder would be the right place for such calls. Similarly, if you want to edit the Desktop (JVM) specific part, the jvmMain folder is the appropriate location.
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/iosApp contains iOS applications. Even if you’re sharing your UI with Compose Multiplatform, you need this entry point for your iOS app. This is also where you should add SwiftUI code for your project.
Build and Run Android Application
To build and run the development version of the Android app, use the run configuration from the run widget in your IDE’s toolbar or build it directly from the terminal:
- on macOS/Linux
./gradlew :composeApp:assembleDebug - on Windows
.\gradlew.bat :composeApp:assembleDebug
Build and Run Desktop (JVM) Application
To build and run the development version of the desktop app, use the run configuration from the run widget in your IDE’s toolbar or run it directly from the terminal:
- on macOS/Linux
./gradlew :composeApp:run - on Windows
.\gradlew.bat :composeApp:run
Build and Run iOS Application
To build and run the development version of the iOS app, use the run configuration from the run widget in your IDE’s toolbar or open the /iosApp directory in Xcode and run it from there.
Learn more about Kotlin Multiplatform…