# kotlinmultiplatform

Kotlin Multiplatform is an open-source JetBrains technology for sharing code across Android, iOS, desktop, web, and server platforms.

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## Antigravity TagSpotter - KotlinMultiPlatform evolve

DevFeed: [Antigravity TagSpotter - KotlinMultiPlatform evolve](<https://devfeed.tech/articles/antigravity-tagspotter-kotlinmultiplatform-evolve-32038.md>)

Original publisher: [Read original article](<https://www.maiatoday.net/p/antigravity-tagspotter-kotlinmultiplatform-evolve/>)

Published: 2026-06-14T19:10:33Z

Content type: opinion

Language: en

Sources: [maiatoday](<https://devfeed.tech/sources/maiatoday.md>)

Topics: [kotlinmultiplatform](<https://devfeed.tech/topics/kotlinmultiplatform.md>), [multiplatform](<https://devfeed.tech/topics/multiplatform.md>), [Android](<https://devfeed.tech/topics/android.md>), [compose-multiplatform](<https://devfeed.tech/topics/compose-multiplatform.md>), [Kotlin](<https://devfeed.tech/topics/kotlin.md>), [iOS](<https://devfeed.tech/topics/ios.md>), [Gradle](<https://devfeed.tech/topics/gradle.md>), [Web](<https://devfeed.tech/topics/web.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [android](<https://devfeed.tech/tags/android.md>), [antigravity](<https://devfeed.tech/tags/antigravity.md>), [code](<https://devfeed.tech/tags/code.md>), [compose](<https://devfeed.tech/tags/compose.md>), [compose-multiplatform](<https://devfeed.tech/tags/compose-multiplatform.md>), [git](<https://devfeed.tech/tags/git.md>), [kmp](<https://devfeed.tech/tags/kmp.md>), [kotlin](<https://devfeed.tech/tags/kotlin.md>), [kotlinmultiplatform](<https://devfeed.tech/tags/kotlinmultiplatform.md>), [migration](<https://devfeed.tech/tags/migration.md>), [tests](<https://devfeed.tech/tags/tests.md>)

### AI overview

The article documents an attempt to migrate the TagSpotter Android app toward Kotlin Multiplatform using Antigravity 2.0 and parallel agents. It describes preparation such as modularizing the codebase, adding tests, researching KMP migration, and planning support for iOS, Android, Desktop, and Web, while retaining Android-specific features such as the Wear app.

### Source excerpt

The Challenge - bring on the subagents Can I make my TagSpotter Android app be multi-platform in a weekend using Antigravity 2.0 and a swarm of agents running in parallel? Can I do this even though I don't know how to use Xcode and I don't want to break my existing app. This was the question I had. TagSpotter is medium featured Android app I built two weeks ago. I use it to capture interesting and favourite spots in the city like unusual graffiti or yarn bombed sculptures. It has a fair few features including: Capture the places by camera with location Upload a photo AI lookup to find info on the internet from the photo, links, title, artist and suggested tags Export the spots in a zip file and import them again. This is how I share my favourite spots with friends. Make field notes by typing or speaking Share my favourites to Google maps for easy navigation Good category and location based filtering Wear app that can list started spots and navigate to a spot on the watch A good challenge because it isn't just a hello world app. The prep Because the clock would be ticking, I did a little bit of prep to make sure I had everything ready. Prep the codebase Clean up the app, no warnings, lint issues or unused imports Make sure the screens work in landscape, desktop mode will need this Split the app into feature based and pure kotlin modules. I know Compose multiplatform and pure kotlin modules can easily be re-used. Put some tests in place Checked everything works and make a tag in git incase Antigravity borked the project. Light research I collected a few salient links about KMP migration. A good blog post, some info on project structure and a link to the open source kmp libraries I might need. Nitty Gritty Friday evening, let's go. Make a plan I want to convert this app to a KMP app that supports iOS, Android, Desktop and Web. The other platforms do not have to support all features, e.g. the wear app. But Android still has to support this feature. I want to share as mu