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GitHub Sponsors Matching Fund

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Become a sponsor to soywiz

Carlos Ballesteros Velasco

Spain, Valencia

Hey! I'm Carlos Ballesteros, aka soywiz. Thank you for reading my Github Sponsors profile!

I will work on updating and improving 🔥 my existing active libraries and to create new ones . If you to sponsor me and want me to update an old library 📺, please let me know.

My plan is to work mostly on Korlibs ; a set of opensource libraries for multiplatform Kotlin. I have been working on them for years already, and you can find them here: and I write about them from time to time in my blog:

Also I plan to publish and create some React components in TypeScript to NPM.

My blog

I publish content: articles, updates of my libraries and courses on my blog.
My sponsors have access to exclusive content from there: ✍️

Please, check it out!

My Libraries

Some of the Korlibs (Kotlin multiplatform libraries) I have written:

In the past decade I have worked in tons of opensource projects, some of them finished already.
You can find all my published libraries and programs in the following locations:

In my repo:

In organizations:

Contact me

Feel free to contact me:

Final Words

Creating OpenSource tools people use is my dream and something I do for free. But I have to pay bills, so I cannot expend all the time I would like on it. The Sponsor program will allow me to expend more time creating and share great things.

As said, if you want to sponsor me, and want me to update another of my libraries written in Kotlin, TypeScript or C#, just let me know. Thank you so much for your support! 😊

2 sponsors


Pinned projects

  • korlibs/korge

    KorGE Game Engine. Kotlin Game Engine for Multiplatform Kotlin 1.3

    Kotlin 210
  • korlibs/klock

    Date and time library for Multiplatform Kotlin 1.3.

    Kotlin 325
  • korlibs/korio

    Korio: Kotlin cORoutines I/O : Virtual File System + Async/Sync Streams + Async TCP Client/Server + WebSockets for Multiplatform Kotlin 1.3

    Kotlin 162
  • soywiz/ktcc

    C Compiler that generates readable Kotlin and C# - Written in Kotlin + Small web-based Editor with autocompletion

    Kotlin 24
  • soywiz/atpl.js

    A complete and fast template engine fully compatible with twig for node.js.

    TypeScript 53
  • cspspemu/cspspemu

    C# PSP Emulator (.NET Core 3.0)

    C# 91

Select a tier

$5 a month


A hamburger 🍔🍟

  • A sponsor badge 🎖 on your profile!
  • Access to my newsletter (planned to be montly)
  • Access to exclusive content on my blog ✍️
  • Thanks!

$10 a month


I can pay another month of GitHub PRO. ★

  • Everything from the previous tiers
  • Access to a private repo with the newsletter archive and programming-related useful links
  • Bigger thanks!

$20 a month


A dinner with my wife! 🍽

  • Everything from the previous tiers
  • Unlimited access to the courses 🎓 found on my website
  • Even bigger thanks!

$50 a month


This pays the bill of my server 🌏

  • Everything from the previous tiers
  • I will review one PR a month for the project you like 👀 (one that is not super big, please)
  • I will look into your reported issues first 🏁
  • You are my hero! Thank you!

$150 a month


🥉 Bronze Company Sponsor

  • Your company logo in the README and page of up to one of my projects

$500 a month


🥈 Silver Company Sponsor

  • Your company logo in the README and page of up to three of my projects, bigger and before than bronze sponsors

$1500 a month


🥇 Gold Company Sponsor:

  • Your company logo in the README and page of up to five of my projects, featured and bigger than the silver sponsor
  • Prioritized support
  • 2 hours of consulting per month
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