Fizzy is a Kanban tracking tool for issues and ideas developed by 37signals, with its source code publicly available on GitHub. The project is built with Ruby and leverages Hotwire for its frontend interactions, representing a modern approach to Kanban-style project management. The tool is accessible at fizzy.do and positions itself as offering Kanban functionality reimagined rather than following conventional implementations, as suggested by its tagline "Kanban as it should be. Not as it has been."
The repository provides multiple pathways for users to deploy and customize Fizzy. For those who want to run their own instance without modifying the codebase, the project offers a pre-built Docker image that simplifies deployment. The Docker deployment guide provides detailed instructions for configuring and customizing a Docker-based installation. For users requiring greater flexibility to modify the codebase and deploy custom changes, Fizzy recommends using Kamal for deployment, with a comprehensive walkthrough available in the Kamal deployment guide. The project also welcomes developers who want to modify Fizzy locally, with a dedicated development guide explaining how to set up a local development environment.
The codebase is released under the O'Saasy License, and the project actively encourages community contributions. Contributors are asked to review the style guide before submitting code, indicating a structured approach to maintaining code quality and consistency across the project.
GitGenius activity tracking reveals that Fizzy maintains modest but consistent engagement with its community. Across 14 tracked issues and pull requests, the median response latency is 6.1 hours, with a mean of 105.9 hours, suggesting that while some items receive quick attention, others may take longer to address. The most active contributors tracked by GitGenius include monorkin with 5 events, jeremy with 4 events, and jorgemanrubia with 4 events, indicating a small core group actively maintaining the project. The repository has experienced gradual growth, with forks increasing from 1156 to 1157 between GitGenius' checks on 2026-07-04 and the current date.
The project shares overlapping contributors with several other significant repositories, including rails/rails, harness/harness, and basecamp/omarchy, suggesting that Fizzy benefits from expertise within the broader Rails and open-source communities. This cross-pollination of contributors likely influences the project's technical direction and quality standards.
While GitGenius classifies the repository with categories related to WebAssembly, Wasm, runtime execution, and virtual machines, these classifications appear to reflect broader technical infrastructure rather than Fizzy's primary purpose as a Kanban tool. The project's core focus remains on providing an alternative approach to issue and idea tracking through a modern web application built on Rails and Hotwire technologies.
