everything here is open source, with periodic releases for some as they grow.
LinkoraApp/Linkora
Local-first bookmark manager for Android, Desktop, and Web. Sync is opt-in and self-hosted. Translations are served remotely via a localization server without requiring an app update. Web target runs on Kotlin/Wasm.
Kotlin MultiplatformCompose MultiplatformWebSocketsWasm
840 stars · 4.92 play store
LinkoraApp/sync-server
Self-hosted sync backend for Linkora. Handles sync for the app and browser extension. Single-user, built on Ktor.
KtorWebSockets
50 stars
kapsule
KMP wrapper around kotlinx.html with Compose-style modifiers and layout semantics. Generates static HTML and inline CSS. No runtime, no JS dependency.
Kotlin MultiplatformDSL
genesis
Documentation-focused static site generator. Converts Markdown to HTML via type-safe Kotlin rendering. Scriptable with Kotlin. Not built for SPAs or dynamic apps.
KotlinSSGMarkdown
Otic
Android app that streams microphone input to the local network over TCP.
AndroidTCPAudio Streaming
30 stars

more on github.