CAFE all stars
People and channels with a /news row, pinned CAFE stack contributions, CAFE code rat-stack vendors or credits, or sourced public CAFE work. Every fact links to its source and the date we checked it.
A person or channel enters through a /news row, contributions to a pinned CAFE stack package, CAFE code rat-stack vendors or credits, or sourced public work built on or teaching the CAFE stack.
Agents can call listPeople, readPerson, searchPeople, listChannels and peopleFor over MCP, HTTP or code mode. Atom feed.
People

Adam Rankin
Adam Rankin is the leading contributor to effect-mq, an Effect v4 background-job library.
source, checked 2026-11-04



Dan van der Merwe
Dan van der Merwe is the leading contributor to @yielded/effect-tsrs.
source, checked 2026-11-04

David Khourshid
David Khourshid added the experimental @xstate/effect integration to XState.
source, checked 2026-11-04

Devin Jameson
The GitHub profile reads "Building Foldkit, the frontend framework for correctness."
Built: foldkit/foldkit (1158 stars), foldkit/foldkit-domains (28 stars)
source, checked 2026-11-02


Dillon Mulroy
Dillon Mulroyâs anti-slop supplies Oxlint rules for TypeScript and JavaScript.
source, checked 2026-11-04

Ethan Niser
Ethan Niserâs Effect by Example collects explained Effect snippets.
source, checked 2026-11-04



Jem
The GitHub profile reads "your favorite technologistsâ favorite technologist".
Built: Manzanita-Research/pleat (32 stars), Manzanita-Research/foldkit-native (32 stars), Manzanita-Research/foldkit-dials (14 stars)
source, checked 2026-11-02

Joel Hooks
GitHub describes joelhooks/rat-stack as an "Agentic TypeScript scaffold: Effect 4, XState 6 + @xstate/effect, Alchemy infra".
Built: joelhooks/rat-stack (140 stars), joelhooks/rat-king (41 stars)
source, checked 2026-11-02


Jordan Coeyman
GitHub describes acoyfellow/coil as "One thread, one agent, one computer. Pi Durable and a Cloudflare Container in one Durable Object, compacted together."
Built: acoyfellow/coil (42 stars), acoyfellow/my-ax (37 stars), acoyfellow/tardigrade (13 stars)
source, checked 2026-11-02


Julia Ortiz
On X: "I kinda ported pi-durable to @EffectTS_, but built on workflows and their AI module", linking julia-script/effect-harness.
Built: julia-script/effect-harness (69 stars), julia-script/effect-inspect (27 stars)
source, checked 2026-11-02

Justin Bennett
On X: "Very bullish on the CAFE stack (cloudflare, alchemy, foldkit, effect). Got my own template for it here"
Built: just-be-dev/cafe-stack (60 stars), just-be-dev/effect-typed-id (37 stars), just-be-dev/foldmark (2 stars)
source, checked 2026-11-02

Kit Langton
Kit Langtonâs Effect Solutions collects patterns for error handling, services, layers and testing.
source, checked 2026-11-04

Makisuo
Makisuo is the top contributor to MapleTechLabs/maple, which GitHub describes as an "OpenTelemetry observability platform".
Built: MapleTechLabs/maple (1943 stars)
source, checked 2026-11-03

Matt Pocock
Matt Pocock asked developers for Foldkit's "aha" moment on 2 November 2026.
source, checked 2026-11-05

Mattia Manzati
Mattia Manzati is the leading contributor to the Effect language service.
source, checked 2026-11-04



Michael Arnaldi
Michael Arnaldi is one of Effectâs top listed contributors.
source, checked 2026-11-04


Patrick G
Patrick G's effect-email provides Effect-native transactional email with typed messages, durable delivery, provider adapters and retry policies.
Built: doeixd/effect-email (30 stars), doeixd/foldkit-plus (32 stars)
source, checked 2026-11-05


Rhys Sullivan
Rhys Sullivanâs Dynamic Software demo runs plugin sessions on Cloudflare Workers.
source, checked 2026-11-04


sam-goodwin
Listed first among the contributors to alchemy-run/alchemy, which GitHub describes as "Infrastructure as Effects".
Built: alchemy-run/alchemy (1833 stars)
source, checked 2026-11-02

Sandro Maglione
Sandro Maglione authors TypeOnce Effect Machine, a schema-first state-machine and statechart library for Effect.
source, checked 2026-11-04

Sebastian Lorenz
Sebastian Lorenz is one of Effectâs top listed contributors.
source, checked 2026-11-04

Tanner Scadden
Tanner Scaddenâs Munch Manor is a browser zombie shooter built with Foldkit and Effect and running on Cloudflare.
source, checked 2026-11-04

Taras Kornichuk
Taras Kornichuk contributes to Alchemyâs domain APIs, including typed reads across projection-store keys.
source, checked 2026-11-04


Valerii Strilets
Valerii Strilets authors Permix, a type-safe permissions library for clients and servers.
source, checked 2026-11-04



yehudacohen
The yehudacohen/typekro repository provides TypeScript definitions for Kubernetes resources with cross-resource references.
source, checked 2026-11-04
Channels

Alchemy
GitHub describes alchemy-run/alchemy as "Infrastructure as Effects".
Built: alchemy-run/alchemy (1833 stars)
source, checked 2026-11-02

Codician
Codician's Diffinery provides Git hosting, pull requests, code review and GitHub Actions-compatible CI on Cloudflare.
Built: codician-team/diffinery (82 stars)
source, checked 2026-11-05

Effect
The Effect-TS GitHub org describes itself as "A set of libraries to write better TypeScript".
Built: Effect-TS/effect (17464 stars)
source, checked 2026-11-02

Foldkit
The Foldkit GitHub org describes Foldkit as "The frontend framework for correctness."
Built: foldkit/foldkit (1158 stars), foldkit/foldkit-domains (28 stars)
source, checked 2026-11-02


HumanLayer
HumanLayerâs Channels handles Slack, GitHub and Linear webhooks on Effect v4.
source, checked 2026-11-04

Manzanita Research
Manzanita Researchâs Terrarium v2 builds deterministic agent simulations on @alchemy.run/domain.
source, checked 2026-11-04


Plannotator
Plannotatorâs Artifact Server lets people and agents publish, review, version and share artifacts.
source, checked 2026-11-04


Stately
GitHub describes statelyai/xstate as "State machines, statecharts, and actors for complex logic".
Built: statelyai/xstate (30403 stars)
source, checked 2026-11-02
To be removed from this page, open an issue in joelhooks/rat-stack. A removal ships with the next site update.