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What is iNKraft?#

iNKraft is a collection of high-quality Kotlin Multiplatform (KMP) libraries and plugins. It is designed to solve the hardest parts of KMP development: complex, low-level and platform-native interoperability.

We provide clean, "common" KMP APIs for complex tasks, built with a unique focus on supporting all KMP targets.

Projects#

  • Cache


    High-performance, coroutine-based cache library for Kotlin Multiplatform.

    Getting started

  • Kotlin Native Interface


    Kotlin Multiplatform library designed to simplify and unify JNI development.

    Take a look

  • Locale


    A simple, serializable and modern Kotlin data class for handling locales.

    First steps

  • NanoId


    Fast, secure, and URL-friendly unique ID generator.

    Learn More

  • Sealed


    Modern KSP-based alternative to sealed-enum for Kotlin Multiplatform.

    Get going

Meet the Creator#

Jeff Retz

Hey 👋🏻
I am Jeff, a qualified Software Developer from 🇩🇪 Germany and combine a 3 year dual apprenticeship with over three years of professional experience.
Currently I balance university studies with self-employment, specializing in the Kotlin ecosystem, particularly in the Mulitplatform context and actively contribute to open source projects.

Web Development#

My career began in Web Development using the Zend Framework (now Laminas) and Laravel.
During this time, I designed and built tools like customer and contract management for well-known brands.

Product Line Engineering#

Later I transitioned to the leading comapny for Product Line Engineering as an Admin and IT Operations specialist for the pure::variants team.
Responsibilities included maintaining and eventually reworking a Java WebService used to manage Virtual Machines for product showcases, integrations and customer playgrounds.

Tech Stack#

My daily drivers: This is the technical toolkit I rely on every day for self-employment and open source development.

  • Kotlin
  • Gradle
  • Compose Multiplatform
  • Git
  • GitHub Actions
  • Firebase
  • Supabase
  • JavaScript