Professional

LinkedIn

• https://www.linkedin.com/in/JonstonChan

Featured projects

JonstonChan

• Android TOTP calculator
  • An Android app made with Kotlin that displays time-based one-time passwords (TOTP) for multi-factor authentication (MFA)
• Dropmail client
  • A Python interface to https://dropmail.me
  • PyPI: https://pypi.org/project/dropmail-client/
• Include replacer
  • A language-agnostic utility written in Go that replaces <include path="path/to/file.txt"> with the contents of path/to/file.txt

technology-tests/emscripten

• BusyBox Web
  • Live demo: https://technology-tests.gitlab.io/emscripten/busybox-web
  • BusyBox ported to the web with the help of Emscripten

technology-tests/javascript

• reveal.js showcase
  • Live demo: https://technology-tests.gitlab.io/javascript/revealjs-showcase
  • Showcase of reveal.js features augmented with custom CSS and JavaScript code

technology-tests/javascript/react-redux

• Redux Login Flow
  • Live demo: https://technology-tests.gitlab.io/javascript/react-redux/login-flow
  • Login flow with React and Redux

technology-tests/latex

• TikZ primer
  • Live demo: https://technology-tests.gitlab.io/latex/tikz-primer/
  • A collection of TikZ diagrams and source code in LaTeX

Previously featured projects

technology-tests/python/django

• Official tutorial
  • Live demo: https://mybinder.org/v2/gl/technology-tests%2Fpython%2Fdjango%2Fofficial-tutorial/HEAD
  • Enhanced version of Django's starter tutorial (Python)

Project listing

JonstonChan

• Android TOTP calculator
  • An Android app made with Kotlin that displays time-based one-time passwords (TOTP) for multi-factor authentication (MFA)
• Decaf compiler
  • Live demo: https://mybinder.org/v2/gl/JonstonChan%2Fdecaf-compiler/HEAD?urlpath=lab/tree/main.ipynb
  • Flex/Bison-based compiler written in C++, linked with C code
• Dropmail client
  • A Python interface to https://dropmail.me
  • PyPI: https://pypi.org/project/dropmail-client/
• Include replacer
  • A language-agnostic utility written in Go that replaces <include path="path/to/file.txt"> with the contents of path/to/file.txt
• Mancala engine
  • Analyzes a Mancala board and produces a list of outcomes for each possible action using both heuristics and brute force in Python
• Mastermind
  • Live demo: https://jonstonchan.gitlab.io/mastermind/
  • The classic Mastermind game reimplemented in TypeScript with React.js
• Morse code utility
  • A small C program that encodes and decodes Morse code
• TensorFlow model numerical function
  • Live demo: https://jonstonchan.gitlab.io/tensorflow-model-numerical-function/
  • Trains TensorFlow.js model in Jupyter Notebook, and embeds into web app
• YAC
  • YAC: Yet Another Calculator
  • Calculator in C as an exercise for lexing and parsing tokens

acme-challenge-http2-error

• acme-challenge-http2-error.gitlab.io
  • See https://gitlab.com/gitlab-org/gitlab-pages/issues/313 for details

demos-and-examples

• Artifacts expire_in unitless
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41171 for details
• Artifacts max size
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41238 for details
• Artifacts untracked exclude unquoted
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41180 for details
• Bug - pipeline stage out of order
  • See https://gitlab.com/gitlab-org/gitlab/issues/118625 for details
• Code coverage extraction
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/49738 for details
• CSV issues import
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/68223 for details
• Extends maximum depth
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41199 for details
• Ruby example
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41242 for details
• Rules if regex
  • See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/68917 for details
• Rules start_in unitless
  • See https://gitlab.com/gitlab-org/gitlab/merge_requests/20895 for details

docker-image-builder

• Godot
  • Docker Hub: https://hub.docker.com/r/jonstonchan/godot
  • Minimal Godot engine with export templates

error-page-demo

• error-page-demo.gitlab.io
  • See https://gitlab.com/gitlab-org/gitlab-pages/issues/183 for details

http-server/go

• Status code
  • Web server in Go for testing HTTP status code

technology-tests/emscripten

• BusyBox Web
  • Live demo: https://technology-tests.gitlab.io/emscripten/busybox-web
  • BusyBox ported to the web with the help of Emscripten

technology-tests/go

• Local HTTP server
  • List files in directory and serves files with Go-based HTTP server

technology-tests/go/ebitengine

• Shaders
  • Live demo: https://technology-tests.gitlab.io/go/ebitengine/shaders
  • Custom fragment shaders with glue code in Go

technology-tests/godot

• Slider game
  • Live web demo: https://technology-tests.itch.io/slider-game
  • Note: web demo does not work on some browsers and platforms. For how to run natively, view README
  • Game made with Godot Engine in GDScript

technology-tests/javascript

• PDF.js
  • Live demo: https://technology-tests.gitlab.io/javascript/pdfjs/web/viewer.html
  • Customized source code of PDF.js library
• reveal.js showcase
  • Live demo: https://technology-tests.gitlab.io/javascript/revealjs-showcase
  • Showcase of reveal.js features augmented with custom CSS and JavaScript code

technology-tests/javascript/react-redux

• Redux Login Flow
  • Live demo: https://technology-tests.gitlab.io/javascript/react-redux/login-flow
  • Login flow with React and Redux

technology-tests/latex

• TikZ primer
  • Live demo: https://technology-tests.gitlab.io/latex/tikz-primer/
  • A collection of TikZ diagrams and source code in LaTeX

technology-tests/protobuf

• Cross-language communications
  • Scalable cross-language (C, Go, Python) communications with protobuf

technology-tests/python

• Vosk speech to text
  • Live demo: https://mybinder.org/v2/gl/technology-tests%2Fpython%2Fvosk-speech-to-text/HEAD?urlpath=lab/tree/notebooks/speech-to-text.ipynb
  • View main notebook: https://gitlab.com/technology-tests/python/vosk-speech-to-text/-/blob/main/notebooks/speech-to-text.ipynb
  • Converts speech to text in Python

technology-tests/python/django

• Official tutorial
  • Live demo: https://mybinder.org/v2/gl/technology-tests%2Fpython%2Fdjango%2Fofficial-tutorial/HEAD
  • Enhanced version of Django's starter tutorial (Python)

Contributed projects

forked-repo/gitlab-com

• www-gitlab-com
  • Source for https://about.gitlab.com/
  • This repo/project is for the public-facing marketing website of GitLab, including improvements to the docs and the handbook.
  • Please file product improvement suggestions at https://gitlab.com/gitlab-org/gitlab.

forked-repo/gitlab-org

• GitLab
  • GitLab is an open source end-to-end software development platform with built-in version control, issue tracking, code review, CI/CD, and more. Self-host GitLab on your own servers, in a container, or on a cloud provider.
• GitLab Community Edition
  • GitLab Community Edition (CE) is an open source end-to-end software development platform with built-in version control, issue tracking, code review, CI/CD, and more. Self-host GitLab CE on your own servers, in a container, or on a cloud provider.
• GitLab Docs
  • GitLab Docs rebuilt using Nanoc. https://docs.gitlab.com
• gitlab-runner
  • GitLab Runner is the open source project that is used to run your CI/CD jobs and send the results back to GitLab.
• omnibus-gitlab
  • This project creates full-stack platform-specific downloadable packages for GitLab.

forked-repo/gitlab-org/quality

• triage-ops
  • Triage operations for GitLab issues and merge requests. This is powered by https://gitlab.com/gitlab-org/gitlab-triage.

Technical

Docker Hub

• https://hub.docker.com/u/jonstonchan
  • Notable Docker images (subset of link above)
    • OpenCV4 (C++ build environment)
    • Exit

GitLab

• https://gitlab.com/JonstonChan
  • Personal projects
    • https://gitlab.com/users/JonstonChan/projects
      • Notable projects (subset of link above)
        • Dropmail Client
          • PyPI package
  • Mainly third-party open-source projects
    • https://gitlab.com/users/JonstonChan/contributed
      • Notable contributions (subset of link above)
        • Merge requests for GitLab project
        • Merge requests for GitLab project (excluding documentation improvements)
        • Merge requests for GitLab handbook
• https://gitlab.com/JonstonChanBot
  • Bot account for automated actions
    • Regularly checks for outdated packages in projects
    • Backs up GitLab data automatically
    • Responds to user comments on specific projects and pings owner for response
    • Interactive content
      • Status: limited beta due to abuse concerns

PyPI

• https://pypi.org/user/JonstonChan/
• https://pypi.org/user/JonstonChan-CI/
  • Bot account for updating packages
  • Has reduced permissions in case of compromised account

Personal

• Personal website
  • https://jonstonchan.js.org/