Stack — technologies across 10 years of projects

Every technology that recurs across at least 3 shipped projects, as a specimen wall ranked by how often it comes up — not A-Z. Each mark's stroke density and the bar beneath it both echo that same count; click a specimen to jump to the matching projects. See all 42 projects →

Or see the same technologies as a connected project graph →

43 recurring technologies · 482 total uses across every project

No. 01 Kotlin

22 projects No. 02 Retrofit

17 projects No. 03 OkHttp

15 projects No. 04 Detekt

10 projects No. 05 Moshi

10 projects No. 06 Conductor

9 projects No. 07 RxJava2

9 projects No. 08 Firebase

8 projects No. 09 RxAndroid

8 projects No. 10 RxRelay

8 projects No. 11 ktlint

8 projects No. 12 SQLDelight

7 projects No. 13 Toothpick

7 projects No. 14 Coroutines

6 projects No. 15 Epoxy

6 projects No. 16 Jetpack Compose

6 projects No. 17 kotlinx.serialization

6 projects No. 18 Dagger

5 projects No. 19 Kotest

5 projects No. 20 RxBinding

5 projects No. 21 AppMetrica

4 projects No. 22 Coil

4 projects No. 23 Docker

4 projects No. 24 GitHub Actions

4 projects No. 25 GitLab CI

4 projects No. 26 Glide

4 projects No. 27 Gradle Plugin API

4 projects No. 28 Gson

4 projects No. 29 KSP

4 projects No. 30 Kotlin Multiplatform

4 projects No. 31 LeakCanary

4 projects No. 32 Maven Central (vanniktech)

4 projects No. 33 RxJava

4 projects No. 34 WorkManager

4 projects No. 35 Crashlytics

3 projects No. 36 DataStore

3 projects No. 37 Dokka

3 projects No. 38 Groupie

3 projects No. 39 Java

3 projects No. 40 Material3

3 projects No. 41 MockK

3 projects No. 42 Picasso

3 projects No. 43 Room

3 projects

By year

What was actually in use each year, derived from every project's own start/end dates and stack list — not a curated narrative, whatever the data says. Technologies marked new are appearing for the first time that year; everything else carried over from an earlier one. Click any technology to jump to its matching projects.

2020+7 new

Ecto Elixir Flutter Guardian (JWT)Phoenix PostgreSQL WebRTC AssertJ Gson Kotlin MVVM Mockito OkHttp Retrofit Room RxJava2 Toothpick

2023+16 new

2024+10 new

Android Framework internals AndroidX (core-ktx, appcompat, activity, ConstraintLayout, Material)AppsFlyer FileKit LibGDX Unicorn2 (MVI)kotlinx-io kotlinx.datetime pathfinder way Accompanist Allure Amazon Corretto Android SDK Anvil AppMetrica C++CMake Cicerone ClickUp API Coil Compose Multiplatform Confluence API ConstraintLayout Coroutines Dagger DataStore Decompose Detekt Docker Dokka Espresso Firebase GitHub Actions Glide Gradle Plugin Gradle Plugin API Gradle Plugin Portal publishing Gson JNI/C++ interop Java Jetpack Compose Jira API KSP Kotest Kotlin Kotlin Multiplatform KotlinPoet Ktor LeakCanary Lottie ML Kit Marathon (test runner)Material 3 Material3 Maven Central (vanniktech)Moxy NDK OkHttp OpenJDK Paparazzi Pendo Retrofit Robolectric Room RxJava SQLDelight Slack API Splunk Statechart/FSM (SCXML)Telegram API Turbine WebRTC WorkManager XMPP gradle-profiler grgit (Git)kotlin-inject kotlinx.serialization ktlint pjsip

2025+9 new

Dart Go JWT PocketBase (Dart SDK)PocketBase (Go)Riverpod SQLite Telegram Web App/Login Widget go_router Accompanist Allure Amazon Corretto Android SDK Anvil AppMetrica AppsFlyer C++CMake Cicerone ClickUp API Coil Compose Multiplatform Confluence API ConstraintLayout Coroutines Dagger DataStore Decompose Detekt Docker Dokka Espresso Firebase Flutter GitHub Actions Glide Gradle Plugin Gradle Plugin API Gradle Plugin Portal publishing Gson JNI/C++ interop Java Jetpack Compose Jira API KSP Kotest Kotlin Kotlin Multiplatform KotlinPoet Ktor LeakCanary LibGDX Lottie ML Kit Marathon (test runner)Material 3 Material3 Maven Central (vanniktech)Moxy NDK OkHttp OpenJDK Paparazzi Pendo Retrofit Robolectric Room RxJava SQLDelight Slack API Splunk Statechart/FSM (SCXML)Telegram API Turbine Unicorn2 (MVI)WebRTC WorkManager XMPP gradle-profiler grgit (Git)kotlin-inject kotlinx.serialization ktlint pathfinder pjsip way

2026+83 new

AGP ANTLR-Kotlin Bash C FFI CLI tooling Canvas API Claude Code Skill format Clikt Cronitor Docker Compose Excalidraw Express FastAPI FastMCP FlexSearch Framer Motion GEDCOM GitLab Runner Google OAuth Gradle config cache Helmet JSON JWT (jsonwebtoken)Karandash config DSL Lexer/Parser/AST MCP SDK MapLibre GL Markdown Markdown (AI prompt content)Mokkery Mordant Moxy MVP Multi-LLM orchestration (Anthropic/OpenAI/Gemini/Ollama/LiteLLM/Bifrost)Node.js Nodemailer OAuth 2.1 OWASP dependency-check Playwright Pomsky (regex DSL)PowerShell Prisma Prompt engineering Python Radix UI React React Aria Components React Hook Form React Router Recharts Redis (Bull + ioredis)Reposilite Sass Spotless Squid Starlette Tailwind CSS TanStack Query Telegram Bot API Tesseract.js (OCR)TypeScript Vanilla JS Vite Vitest WASM (Chicory)XState Xray/VLESS proxy YAML Yjs (CRDT)Zod Zola Zustand aiosqlite cryptography (Fernet)flock locking graphology httpx i18next jsPDF kover pydantic pytest shellcheck uvicorn Accompanist Allure Amazon Corretto Android SDK Anvil AppMetrica AppsFlyer C++CMake Cicerone ClickUp API Coil Compose Multiplatform Confluence API ConstraintLayout Coroutines Dagger Dart DataStore Decompose Detekt Docker Dokka Espresso Firebase Flutter GitHub Actions GitLab CI Glide Go Gradle Plugin Gradle Plugin API Gradle Plugin Portal publishing Gson JNI/C++ interop JWT Java Jetpack Compose Jira API KSP Kotest Kotlin Kotlin Multiplatform KotlinPoet Ktor LeakCanary LibGDX Lottie ML Kit Marathon (test runner)Material 3 Material3 Maven Central (vanniktech)Moxy NDK OkHttp OpenJDK Paparazzi Pendo PocketBase (Dart SDK)PocketBase (Go)PostgreSQL Retrofit Riverpod Robolectric Room RxJava SQLDelight SQLite Slack API Splunk Statechart/FSM (SCXML)Telegram API Telegram Web App/Login Widget Turbine Unicorn2 (MVI)WebRTC WorkManager XMPP go_router gradle-profiler grgit (Git)kotlin-inject kotlinx.serialization ktlint pathfinder pjsip way