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Kitty-Hivens/README.md

Hi there, I'm Haru 👋

Backend developer focused on the JVM — Java 25, Kotlin, Spring Boot. Currently interning on a commercial product (Spring Boot 4, Redis, MySQL).

I build things that run in production: a pharmacy management system with OpenAPI-first architecture, a CALPHAD thermodynamics library for materials science, a Kotlin/Compose launcher with real users.

Germany · Open to remote work (JVM / Kotlin / Backend)

Technical Stack

Domain Technologies
Backend Java Spring Hibernate
System & Linux Bash Linux Wine
Frontend Angular TypeScript Tailwind
Database MariaDB PostgreSQL Flyway
DevOps & Tools Docker Git IntelliJ

GitHub Stats

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  1. Pharmacy Pharmacy Public

    Enterprise-grade Pharmacy Management System & POS built with Spring Boot 4 and Angular 21. Features FEFO inventory logic, optimistic locking, and contract-first OpenAPI architecture.

    TypeScript 1

  2. linux-osu-stable-installer linux-osu-stable-installer Public

    Play osu! (stable) on Linux with zero latency. Automates everything: fonts, audio buffers, and even Discord RPC. Just run and play.

    Shell 1

  3. Aura-Launcher Aura-Launcher Public

    Modern, lightweight, and open-source launcher for SmartyCraft built with Kotlin & Compose Multiplatform. 💜

    Kotlin 10 1

  4. Dedrarion Dedrarion Public

    A gameplay-changing mod adding new dimensions of combat and exploration. Unique bosses, living weaponry, and complex crafting mechanics.

    Java

  5. solyx solyx Public

    Computational thermodynamics library for the JVM. CALPHAD-based phase equilibrium calculations for materials science and engineering. MIT License.

    Kotlin