I am the creator and maintainer of [AtCoder Problems](https://github.com/kenkoooo/AtCoderProblems/), and I also offer it as [a web application](https://kenkoooo.com/atcoder/).

Support streamich’s open source work: React, CRDTs, CSS-in-JS, Markdown, and emojified Git commits

Maintainer of projects such as `@effect`, `@fp-ts` and `@tsplus`, passionate about innovation and finding ways to improve software development.

Thank you for taking the time to get to know me and read my profile, and thanks for your support!

Secure, end-to-end encrypted, and privacy respecting sync for all of your data. Developing an SDK for building encrypted applications as well as a variety of apps for all platforms for syncing your contacts, calendars, tasks, notes and more!

I have been an active member of the open-source community for over a decade, with significant contributions to a wide variety of projects related to security, privacy, self-hosting, static site generation, Python, Django, Fish shell, and more.

TurboVNC is an open source high-speed secure-by-default VNC implementation that enables on-demand remote desktop access, with workstation-like levels of performance, to Linux and Unix hosts.

Creating FOSS podcast apps for iOS, Android, F-Droid, and web. Podcasting 2.0 certified. #Value4Value

springdoc helps to automate the generation of API documentation using spring boot projects. (living documentation using OpenAPI)

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Experienced software technologist with passion for architecting and developing solutions in any business domain using only languages, frameworks and patterns that are most suitable for given problem. Proficient in both cloud based and server-less.

Indie developer building Readest, a modern, open-source ebook reader for deep, focused reading. Designed for thinkers, learners, and book lovers—with sync, annotations, TTS, and split-view. Help support a better reading experience.

Join us on our mission to democratize the tools and technologies individuals and enterprises need to master endless cyber threats and risk.

Nate is building tools for creative developers. From next-gen static site generators to best-in-class CLI tools, your sponsorship helps Nate do what he loves—build top-notch, DX-focused tools that make your life easier.

Hey! I'm Ellie. I build and host things on the internet. If you appreciate my work, I'd love your support <3

Network and telecommunications administrator and developer in his free time.

ThrowTheSwitch.org develops open source testing tools for the C language. We love embedded software and systems developers.

Support decentralized social media with Mastodon

I enjoy creating and improving things that are useful to the community. Many of my projects are open source and completely free. I love making these projects accessible to everyone and making things easy for them.

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Support Haoqun's open source work

Developer focused on open source CAD and open source hardware (OSHW) collaboration tools. Core contributor for the CadQuery CAD scripting API. Founder of @7BIndustries which structured around developing open source software and hardware.

Open Sheet Music Display is a TypeScript based open source library that enables developers to build musicXML sheet apps. We need your support to keep making state of the art open source software for displaying digital sheet music.