Independent software studio
At 제이원 (J1), we build practical apps and developer tools that make everyday work simpler. Our projects span personal record keeping and software development workflows, with thoughtful engineering and clear interfaces.
Let's talkPersonal productivity · Web app
A simple way to keep track of monetary gifts for weddings, funerals, and other important occasions. Record the person, relationship, event, date, and amount; find past entries and review spending by year, relationship, or event.
Excel export makes it easy to keep a separate copy of your records.
Open web appDeveloper tools · macOS · Open source
A native Git worktree manager for developers working across multiple branches. Create and find worktrees, open them in your preferred IDE, and clean up completed work from one focused interface.
GitHub pull request and Jira status help keep development context close to the code. Available through GitHub releases and Homebrew.
Explore Grovr on GitHubFocused software for everyday needs, designed around simple experiences and reliable foundations.
Tools that connect information, reduce repetitive work, and make room for the tasks that matter.
Exploring AI-assisted document summaries, information extraction, and drafting as useful parts of a wider workflow.