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#
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Cache
High-performance, coroutine-based cache library for Kotlin Multiplatform.
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Kotlin Native Interface
Kotlin Multiplatform library designed to simplify and unify JNI development.
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Locale
A simple, serializable and modern Kotlin data class for handling locales.
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NanoId
Fast, secure, and URL-friendly unique ID generator.
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Sealed
Modern KSP-based alternative to sealed-enum for Kotlin Multiplatform.
Meet the Creator#

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