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Kat Marchán

stolen Chochenyo Ohlone land

Hi! My name's Kat and I'm an engineer 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 spending my non-work time working on a co-op platform to help artists make a living, and also doing Rust-based projects and tooling.

What I've Done

What I'm Working On

  • I'm working on a new, next-generation node_modules/ package manager called Orogene, aiming to be fast, safe, and featureful.
  • I'm the lead dev on Banchan Art, a platform co-operative aiming to help artists make an easier, safer living with digital art.
  • 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, particularly maintaining kdl-rs.
  • 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 contribute to the bevy in the form of big-brain, and to the nushell by helping them improve the overall error definition and messaging story across the project.
  • 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.
  • 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!


Let's get to 100!

Current sponsors 48


Past sponsors 230

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Featured work

  1. zkat/cacache-rs

    A high-performance, concurrent, content-addressable disk cache, with support for both sync and async APIs. 💩💵 but for your 🦀

    Rust 460
  2. BanchanArt/banchan

    The Co-Operative Commissions Platform

    Elixir 156
  3. orogene/orogene

    Makes `node_modules/` happen. Fast. No fuss.

    Rust 1,402
  4. zkat/miette

    Fancy extension for std::error::Error with pretty, detailed diagnostic printing.

    Rust 1,752
  5. kdl-org/kdl

    the kdl document language specifications

  6. zkat/big-brain

    Utility AI library for the Bevy game engine

    Rust 896

48% towards 100 monthly sponsors goal

@aredridel @bvibber
@skullface @emceeaich @Qard @aeschright @ljharb

aredridel and 47 others sponsor this goal

Select a tier

$ a month

You'll receive any rewards listed in the $5 monthly tier. Additionally, a Public Sponsor achievement will be added to your profile.

$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!

$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.