Sure.am

Sure is a personal finance app kept alive by the people who use it. The Maybe Finance team spent 2021 and 2022 building a full-featured finance and wealth management product, stopped development when the business did not work out, open-sourced the code, briefly ran a hosted version, then wound that down too. Sure is the community fork that picks it up from there.

It is a working application rather than a starting point, and it needs Ruby at the version pinned in the repository, PostgreSQL above 9.3 and Redis above 5.4.

A few things matter before adopting it.

• Self-hosting: Docker is the documented path, with one-click options on PikaPods, Railway and Hostim.
• Client options: a browser, a macOS desktop app, a mobile app, API clients and LLM agents all reach the same instance.
• Performance transparency: a public dashboard publishes slow requests from the demo site with stack traces attached.
• Naming rules: the Maybe trademark and logo cannot be reused in forks, so a fork needs its own identity.

Local development starts by copying the example environment file and running the setup and dev scripts, with optional demo data to load. Setup guides cover macOS, Linux, Windows and dev containers.

This suits someone who wants their financial data on hardware they control and is comfortable running a Ruby app with Postgres and Redis behind it. Performance on data-heavy views is an open area where contributions are welcome, and the code is AGPLv3.