Kubis is an independent software publisher whose projects are distributed through a public GitHub repository, offering a compact catalog of two open-source products aimed at developers and productivity-minded Windows users. The first product, FocusTray, is a minimalist Windows system tray application designed to help users maintain deep focus during work sessions. It operates unobtrusively from the notification area and provides visual feedback that supports concentration, making it suitable for knowledge workers, students, and anyone who wants a lightweight aid for managing focused work periods without the overhead of a full-featured productivity suite. The second product, GitFlow, is a Git workflow management tool that implements the well-known GitFlow branching model. It targets software development teams and individual programmers who want to structure their version control practices around a disciplined branching strategy, streamlining tasks such as feature development, release preparation, and hotfix handling within Git repositories. Taken together, these two products reflect a catalog oriented toward practical, narrowly scoped utilities: one focused on personal productivity and workplace concentration on the Windows desktop, the other on developer tooling and source control process management. Both fall into common software categories of desktop utilities and development workflow automation, and both address everyday use cases where simplicity and minimal configuration are valued over broad feature sets. With source code openly available on GitHub, Kubis's offerings can be inspected, adapted, and integrated into individual or team environments, fitting the needs of users who prefer transparent, community-accessible tools for focus management and structured Git-based development workflows.