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@JoviDeCroock

Jovi De Croock

JoviDeCroock
Belgium

Hey, I’m Jovi,

A Belgian software engineer and open-source maintainer focused on making the web faster, lighter, and easier to build for.

I’m a core maintainer of Preact and Preact Signals, where I work on performance, compatibility, developer experience, and the long-term health of the ecosystem.

My current open-source work includes:

  • Maintaining and improving Preact and Preact Signals
  • Investigating performance bottlenecks and reducing framework overhead
  • Reviewing community contributions and resolving complex framework issues
  • Building Pracht, an experimental framework exploring lightweight, high-performance application development
  • Creating Drydock, a platform supporting the people and projects behind open-source software
  • Maintaining developer tooling such as Prefresh, gql.tada and GraphQLSP

I care deeply about creating software that is both powerful and efficient. Whether I’m working on a framework, developer tooling, or new infrastructure for open source, I try to reduce unnecessary complexity, keep bundle sizes small, and make good performance accessible by default.

I created Prefresh to bring Fast Refresh to Preact, and GraphQLSP/gql.tada to improve the GraphQL development experience directly inside TypeScript tooling. More recently, I’ve been working on Pracht to explore new approaches to building lightweight applications, and Drydock to help make open-source work more sustainable.

I also write about the technical challenges, lessons, and ideas I encounter while building and maintaining open-source software on my blog.

Sponsorship gives me more time to maintain critical infrastructure, investigate difficult performance problems, review contributions, improve documentation, and build new tools that benefit developers across the ecosystem.

Sponsors can also book one-on-one sessions with me to discuss Preact, Signals, frontend architecture, performance, developer tooling, or open-source maintenance.

A better web is something we build collectively. Thank you to everyone who supports my work—financially, through contributions, or simply by using and sharing the projects I help maintain.

14 sponsors have funded JoviDeCroock’s work.

@JoviDeCroock

This amount would show me that the time I spend in OSS actually impacts some developers lives, which at the end of the day is what I'm doing it for.

@lukejacksonn
@gu-stav
@excessivecoding
@barelyhuman
@aralroca
@kitten
@nandorojo
@maraisr
@pashasadri
@NilsJacobsen
@webvs2
@CS-Birb
@thnxdev
@martinbonnin

Featured work

  1. preactjs/preact

    ⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.

    JavaScript 38,779
  2. 0no-co/gql.tada

    🪄 Magical GraphQL query engine for TypeScript

    TypeScript 2,960
  3. preactjs/signals

    Manage state with style in every framework

    TypeScript 4,475
  4. 0no-co/GraphQLSP

    TypeScript LSP plugin that finds GraphQL documents in your code and provides diagnostics, auto-complete and hover-information.

    TypeScript 457
  5. preactjs/prefresh

    Hot Module Reloading for Preact

    JavaScript 389
  6. JoviDeCroock/pracht

    A framework for Preact that deploys anywhere

    TypeScript 91

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$3 a month

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🙌 Support my open-source work.

Your sponsorship helps me continue maintaining Preact, Signals, Pracht, Drydock, and the developer tools I contribute to.

You’ll receive my eternal gratitude and the knowledge that you’re helping make the web lighter, faster, and more sustainable.

Thank you for believing in the work.

$10 a month

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⚡ Help sustain ongoing maintenance and development.

Alongside my gratitude, you’ll receive occasional sponsor updates about what I’m building, maintaining, investigating, and experimenting with across Preact, Signals, Pracht, Drydock, and my other projects.

You’re helping fund the less visible parts of open source: issue investigation, code review, maintenance, documentation, and long-term technical work.

Includes all previous benefits.

$25 a month

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🥇 Become a recognized supporter of my open-source work.

Your GitHub avatar and profile link will be displayed on my sponsor page and, where appropriate, across my main personal projects.

This tier is ideal for developers, founders, and small teams who use my work and want to help keep it healthy.

Includes all previous benefits.

$75 a month

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💬 Get direct access to my experience.

You may send me one focused technical or strategic question each month. Topics can include:

  • Preact and Signals
  • Frontend architecture
  • Web performance and bundle size
  • Developer tooling
  • Open-source maintenance
  • Building products for developers

I’ll provide a thoughtful async response, although this tier does not include implementation work, ongoing support, or guaranteed turnaround times.

Includes all previous benefits.

$250 a month

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🏢 Support the open-source infrastructure your team depends on.

Your company logo and website will be displayed on my sponsor page and may be included across relevant project repositories and websites.

You’ll also receive:

  • A quarterly 45-minute call
  • Priority consideration when raising relevant bugs or technical concerns
  • Consultation around Preact, Signals, performance, developer tooling, and open-source adoption
  • Occasional insight into the projects and problems I’m exploring
  • You can setup a slack connection to my personal slack workspace

Priority consideration does not guarantee that a feature will be implemented or that a project’s direction will change.

Includes all previous benefits