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Become a sponsor to Kat Marchán

Kat Marchán

stolen Chochenyo Ohlone land

Hi! My name's Kat and I'm an engineer on the NuGet client team at Microsoft. Before that, I was the lead maintainer/architect of the NPM CLI for like 4 years, and the author of npx. I've also done a bunch of community and D&I work outside of that, along with more non-NPM open source!

These days, I'm mainly spending my non-work time doing Rust-based projects and tooling and I hope you all have a great time using them!

What I've Done

What I'm Working On

  • I admin WeAllJS and and help keep them happy, healthy, inclusive communities.
  • I finished getting KDL 1.0.0 specs out the door and now I'm moving on to supporting new implementations.
  • I'm actively developing miette, the best damn error/diagnostic reporting library in the entire Rust ecosystem (or any ecosystem?), if I may say so myself.
  • I'm maintaining node-semver-rs, a Rust implementation of node-semver, which is super important for anyone wanting to build NPM/JavaScript tooling in Rust.
  • My day job involves working on the NuGet clients. I don't mind tips if you appreciate my work over there, though.
  • I participate in communities, providing mentorship and advice in relevant areas of expertise.

What Sponsorship Does

Aside from what the tiers get you, sponsoring me enables me to keep finding ways to contribute to communities, both in code/tools, and in community work, and it helps me justify spending time on this outside of the scope of my day job!

91 sponsors are funding zkat’s work.


Let's get to 100!


Featured work

  1. zkat/miette

    Fancy upgrade to std::error::Error.

    Rust 484
  2. kdl-org/kdl

    the kdl document language specifications

  3. NuGet/NuGet.Client

    Client Tools for NuGet - including Visual Studio extensions, command line tools, and msbuild support. (Open issues on

  4. zkat/big-brain

    Utility AI library for Rust

    Rust 155
  5. zkat/cacache-rs

    💩💵 but for your 🦀

    Rust 139
  6. zkat/ama

    Ask me anything!

86% towards 100 sponsors goal

@aredridel @brion
@skullface @coilysiren @NamespaceValentine @emceeaich @Qard

aredridel and 85 others sponsor this goal

Select a tier

$ a month

Choose a custom amount.

$5 a month


Taco Tier 🌮 | This gets me a taco at my favorite taco place! It also gets you:

  • a sponsor 🎖 badge on your profile
  • access to my (monthly?) newsletter with exclusive news, programming and community thoughts, and other yet-to-be-public open source goodness
  • My gratitude. Thank you!

$10 a month


Burrito Tier 🌯 | This actually gets me a burrito at my favorite taco place. It also gets you:

  • All the previous tier rewards
  • Code review on a (reasonable, non-corporate) PR on an open source project!
  • Access to an exclusive private repo with an archive of previous update emails, and various other exclusive goodies I'm gonna share with y'all!

$20 a month


Bay Area Burger Tier 🍔 | Yes, literally what a burger costs out here. You get:

  • All the previous rewards.
  • A review of a (non-corporate) conference talk and some advice on delivering it!
  • A Patron license to any of my copyleft-licensed projects.

$100 a month


Dinner For Two 👯‍♀️ | This is a dinner for me and my partner! Yay! You get:

  • All of the previous tier rewards
  • A monthly half-hour-long phone or video call where you get to chat with me about whatever you want related to your career, open source, the projects I work on, or other stuff like that! I'm open to ideas! (All discussions non-corporate).

$250 a month


Corporate Tier 🕴 | This involves actual work for companies! You get:

  • All of the previous tier rewards as a corporate client.
  • Taking the above into account, this is about 1hr a month of general consultation/support.