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Justin Su

PROFILE

Justin Su

Over seven months, Injustsu contributed to projects such as mitmproxy, Homebrew Cask, and python/cpython, focusing on reliability, maintainability, and user experience. They enhanced uninstall flows in Homebrew Cask by expanding zap stanzas and updating scripts to ensure complete removal of user data, reducing privacy risks and support overhead. In mitmproxy, they preserved JSON key order for accurate payload inspection, while in python/cpython, they improved asyncio REPL encapsulation to minimize global state side effects. Their work combined Python, JavaScript, and Docker expertise with strong documentation and configuration management, consistently delivering targeted, well-documented solutions to real-world engineering problems.

Overall Statistics

Feature vs Bugs

57%Features

Repository Contributions

18Total
Bugs
6
Commits
18
Features
8
Lines of code
199
Activity Months7

Work History

October 2025

4 Commits • 2 Features

Oct 1, 2025

In October 2025, delivered targeted, high-value documentation updates across two major repos to streamline developer workflows and reduce configuration friction. Resulted in clearer IDE integration and more predictable CLI usage, strengthening onboarding and ongoing productivity.

September 2025

3 Commits • 2 Features

Sep 1, 2025

September 2025 monthly summary: Delivered targeted improvements across three repositories that enhance maintainability, developer experience, and packaging reliability. Key changes include (1) Docker Compose container naming standardization in hashtopolis/server to prepend 'hashtopolis-' to the db container, improving clarity in multi-container deployments; (2) Fish indentation formatting setup documentation in zed to guide developers in using fish_indent; and (3) packaging reliability fix in Homebrew/core by relocating the typeshed directory to libexec and adjusting zubanls env var handling with accompanying test updates. These efforts reduce operational ambiguity, streamline contributor workflows, and improve end-user packaging experience. Technologies demonstrated include Docker Compose, documentation governance, and Homebrew packaging/testing.

July 2025

4 Commits • 2 Features

Jul 1, 2025

July 2025: Delivered targeted features and bug fixes across three repositories, enhancing runtime reliability, user experience, and documentation quality. Focus areas included asyncio isolation, UI clarity, and default runtime behavior.

May 2025

3 Commits • 1 Features

May 1, 2025

May 2025 performance summary for geerlingguy/homebrew-cask focused on improving uninstall hygiene and code maintainability for NVIDIA GeForce Now. Delivered an enhanced uninstaller by expanding the zap cleanup to remove additional directories/files and reorganizing the zap stanza for maintainability, reducing residual data and potential user-support issues.

March 2025

1 Commits

Mar 1, 2025

March 2025: Focused on reliability of uninstall flow for Canon EOS Utility within lizongying/homebrew-cask. Implemented an uninstall script update to ensure EOS Network Setting Tool is deleted, delivering complete removal of all Canon EOS Utility components. This prevents residual files post-uninstall, reduces user-reported issues, and supports a cleaner Homebrew Cask experience. Key change tied to commit 327bc34077a556eca6a354d65ee0c2ea59ac023e.

December 2024

1 Commits

Dec 1, 2024

Month: 2024-12 — Focused on delivering a robust uninstall cleanup for GeForce NOW in the lizongying/homebrew-cask repository. Key feature delivered: extended zap stanza to ensure complete removal of user data by targeting application support files, HTTP storages, preferences, and saved application states. Major bugs fixed: clean uninstall now removes all associated data, eliminating residual files and privacy risks. Overall impact: improved user privacy, reliability of uninstallation, and a reduction in support tickets related to incomplete removals. Technologies/skills demonstrated: Homebrew Cask maintenance, macOS uninstall cleanup patterns (zap stanza usage), clear commit tracing and governance. Notable commit: d244229858ad13a86ad0c8cb26092300577c66cd.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024: Delivered targeted improvements and maintenance across two repositories to enhance data fidelity, cleanup hygiene, and user experience. Focused on precise payload rendering in mitmproxy and robust uninstall cleanup in Homebrew Cask, supported by concrete commits and careful release hygiene.

Activity

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Quality Metrics

Correctness99.0%
Maintainability99.0%
Architecture99.0%
Performance97.8%
AI Usage31.2%

Skills & Technologies

Programming Languages

JSONJavaScriptMarkdownPythonRubyRustTypeScriptYAML

Technical Skills

Changelog ManagementDevOpsDockerDocumentationEnvironment VariablesFormula ManagementFull Stack DevelopmentHomebrewHomebrew Cask ManagementIDE ConfigurationJavaScriptPackage ManagementPythonRustSoftware Installation/Uninstallation

Repositories Contributed To

10 repos

Overview of all repositories you've contributed to across your timeline

lizongying/homebrew-cask

Nov 2024 Mar 2025
3 Months active

Languages Used

Ruby

Technical Skills

HomebrewPackage ManagementHomebrew Cask ManagementSoftware Installation/Uninstallation

geerlingguy/homebrew-cask

May 2025 May 2025
1 Month active

Languages Used

Ruby

Technical Skills

Homebrew Cask Management

zed-industries/zed

Jul 2025 Sep 2025
2 Months active

Languages Used

JavaScriptRustMarkdown

Technical Skills

JavaScriptRustconfiguration managementfront end developmentdocumentationfish shell

sharkdp/bat

Oct 2025 Oct 2025
1 Month active

Languages Used

Markdown

Technical Skills

Changelog ManagementDocumentationTechnical Writing

Prinzhorn/mitmproxy

Nov 2024 Nov 2024
1 Month active

Languages Used

Python

Technical Skills

Full Stack Development

python/cpython

Jul 2025 Jul 2025
1 Month active

Languages Used

Python

Technical Skills

Pythonasynchronous programming

grafana/k6-DefinitelyTyped

Jul 2025 Jul 2025
1 Month active

Languages Used

TypeScript

Technical Skills

DocumentationTypeScript

hashtopolis/server

Sep 2025 Sep 2025
1 Month active

Languages Used

YAML

Technical Skills

DevOpsDocker

Homebrew/homebrew-core

Sep 2025 Sep 2025
1 Month active

Languages Used

Ruby

Technical Skills

Environment VariablesFormula ManagementTesting

astral-sh/ruff

Oct 2025 Oct 2025
1 Month active

Languages Used

JSON

Technical Skills

DocumentationIDE Configuration

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