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Become a sponsor to shunta hayashi
Sponsorships fund maintenance of my public tools and source-available apps.
What I'm building
- Just ScreenTime — privacy-first Windows screen-time tracker (WinUI 3 / .NET 8). Fully local, no network capability declared. Sold on the Microsoft Store; full source published under PolyForm Noncommercial.
- invoice-studio — fully offline Japanese invoice generator (インボイス制度対応).
- gh-pr-trust-scan — Python CLI for evaluating AI-PR rejection risk before forking.
- Small fixes across the OSS ecosystem (recent merges: Marinara-Engine, safedep/vet, dotnet/docs), plus writing on dev.to.
What sponsorships go toward
Sustaining maintenance time: Store releases and user support for Just ScreenTime, keeping the public repos healthy, and continued upstream contributions.
All work is AI-assisted via Claude Code, with disclosure in every PR, article, and tool README.