Hamza Hamidi, software engineer building developer tools

Bio

A little more about me.

I've always loved spending way too much time on the computer. I spent my teens tinkering with Photoshop, writing C/C++ code and building websites.

My curiosity led me to dig deep into the world of computer science, and I eventually decided to pursue a degree in the field.

These days I work on backend and distributed systems, across TypeScript, Go and Python. On my own time I maintain AJSF and prettier-eslint, and I build developer tooling: most recently yoke, a Chrome extension and MCP server that lets an agent drive the browser you are already signed in to.

Now

TheFork.: Software engineer, in Paris.
yoke.: Started on 21 August 2026. A Chrome extension and a local MCP server that drive the Chrome profile I am already signed in to, every tab in every window.
claude-in-chrome-cli.: Started on 11 August 2026. A shell script that drives the Claude in Chrome extension, from Claude Code or from a plain shell.
AJSF.: Back in maintenance since August 2026. Angular 18 is the current stable release. Angular 19 is at release candidate 3.

Code

The duct tape that keeps the world together!

Open source is the part of this work I've always enjoyed most, and the language changes with the project. Here are some of the ones I've contributed to:

yoke

2026

A Chrome extension and a local MCP server that let any MCP client drive the Chrome profile you are already signed in to. It addresses every tab in every window by id, reads pages, clicks and types, takes screenshots, and reads console and network activity.

It began as the tab-group helper split out of claude-in-chrome-cli. Your signed in sessions, cookies and extensions stay available, which is the reason to reach for it instead of starting a second browser. It addresses tabs by id rather than through a tab group, redacts URLs unless a call asks for them, and ships zero runtime dependencies.

0.1.2 npm version of yoke-mcp

TypeScript, MITCode

claude-in-chrome-cli

2026

The Claude in Chrome extension tools, from a shell script.

One MCP bridge with two front doors: a plugin inside Claude Code, and cic for anything that can run a shell. It also lists every open tab by reading Chrome's session files, which the extension bridge cannot see.

0.8.0 npm version

JavaScript, MITCode

AJSF (Angular Json Schema Form)

2018

An Angular form, generated from a JSON schema.

Over 70 example schemas, each viewable with Material Design, Bootstrap 3, 4 or 5, or with no formatting at all. It is an independent update to angular2-json-schema-form, and contributions are welcome.

TypeScript, MITCode Demo

Prettier-eslint

Runs Prettier over your code, then eslint --fix.

Formats your code with prettier, then hands it to eslint so the two stop disagreeing. I carried it through the ESLint 6 and Prettier 2 upgrades.

9 merged pull requests

TypeScript, maintainerCode

cookies-utils

2020

A typed cookie API over the Cookie Store API.

One async interface over both backends, with nothing to configure. Version 2 rejects the attribute combinations that are unsafe rather than merely wrong, covering SameSite, Secure, Partitioned (CHIPS) and the __Secure- and __Host- prefixes. Importing it never reads document, so it is safe in a server-rendered build.

2.0.1 npm version

TypeScript, MITCode

Older work

Todo List

2018

An Ionic todo app with shared notes, images and speech input.

An Ionic application I started in 2018. I used Firebase as a Back End. Todo List is available as a mobile application (Android, IOS, Windows phone), but also as a Progressive Web Application. Todo List has many features like sharing notes, upload images, Speech Recognition...

Contributions to the public repository are always welcome. I use Zenhub for project planning.

17 stars

TypeScriptCode Live Demo

angular-forum

2018

A forum application built with Angular.

A forum application built with Angular, and the second most starred thing I wrote.

76 stars

TypeScriptCode Live

Vulcan

A full-stack app framework on React, GraphQL and Meteor.

An open-source full-stack app framework based on React, GraphQL, Meteor, and MongoDB, with now more than 5000 stars and 150 contributors.

Code

RealWorld

One example application, implemented in every framework.

"The mother of all demo apps" an Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more.

While most "todo" demos provide an excellent cursory glance at a framework's capabilities, they typically don't convey the knowledge & perspective required to actually build real applications with it.

RealWorld solves this by allowing you to choose any frontend (React, Angular 2, & more) and any backend (Node, Django, & more) and see how they power a real world, beautifully designed fullstack app called "Conduit"..

Code

etherpad-lite

Open source real-time collaborative document editing.

For those of you tired of using Google tools like Google docs ... then you're not the only ones! And if you want to do something about this! Here's the solution!

etherpad-lite is an open source real-time collaborative document editing.

Code

Merged pull requests

42

Merged into 16 projects I do not own. Six of the changes:

microsoft/vscode 1 merged
Fixed the keybinding hash so scan codes and simple keys stopped colliding. #173456
The editor many developers keep open while writing and debugging software.
facebook/docusaurus 3 merged
Added the noIndex config option, so a site can ask crawlers to skip it. #3573
The documentation builder teams use when Markdown needs versions, search and a website.
prettier/prettier-eslint 9 merged
Maintainer. Carried it through the ESLint 6 and Prettier 2 upgrades, and keyed the ESLint cache on the effective working directory. #337 #334 #1221
Runs prettier over your code, then eslint --fix.
cloudfoundry/stratos 7 merged
Added French localisation, and the org and space columns to the application list. #1419 #2247
A web console for managing Cloud Foundry and Kubernetes.
realworld-apps/angular-realworld-example-app 4 merged
Moved the project structure to Angular 6, and added the production build and CI. #114 #50 #98
An Angular blogging application used to compare framework implementations on a shared example.
zkat/make-fetch-happen 1 merged
Fixed the crash on a proxy URL with no protocol. #61
The caching fetch that npm makes its requests with.

Also iamkun/dayjs, kulshekhar/ts-jest, webpack/webpack.js.org, bgub/eta, AxaFrance/oidc-client, semantic-release/npm, json-schema-org/json-schema-org.github.io, AxaFrance/react-toolkit, AxaFrance/Skizzle, felixzapata/gulp-stubby-server.

Bug reports

Not every fix starts as a pull request.

Bugs I reported in projects I do not own. The maintainers confirmed each one as a bug and closed it as done.

npm/cli #3904
npm accepted a publish and then reported the package had no README. Fixed in npm 8.
webpack/webpack-cli #2003
webpack-cli rejected a configuration object as invalid when it was not.
swc-project/swc #3626
A namespace import compiled into a call to something that was not a function.
actions/setup-node #417
cache-hit reported true on a restored cache that was missing the dependencies.
aws/aws-sdk-js-v3 #3080
getObject reached the object body only through an internal stream buffer.

Every issue I have opened elsewhere

Writing

Like coding, but without all the errors.

Fixing 503 Errors During Kubernetes Rollouts: Two Approaches
2025. Why a rolling update drops requests, and the two ways out of it.
Optimize React web apps with webpack-bundle-analyzer
2019. Reading a bundle treemap, and what to do about what it shows.
Theming your Angular application with Bootstrap SASS
2017. Wiring Bootstrap SASS variables into an Angular build.

Say hello

Get in touch through GitHub, LinkedIn or X. Medium is where I write.

GitHub@hamzahamidi
LinkedInin/hamzahamidi
X@hamzahamidii
Medium@hamidihamza