cioraneanu/firefly-pico ? reverse-engineered prompt

Build me a mobile friendly companion app for Firefly III that makes it really fast to log expenses and keep an eye on my money on the go. I want a clean, minimal interface with dark mode, subtle animations, and a dashboard that shows the important stuff at a glance. It should feel like a PWA so it works nicely on a phone and can be used like a native app.

The main thing I need is a quick expense entry flow with a smart assistant that helps fill in the form as easily as possible. Also include support for custom icons for different items, tags with subtags for better organization, and reusable templates so I can autofill common transaction details. Make it easy to browse settings and tweak the app to fit my workflow. If you need to check anything about Firefly III or current best practices, look up the docs online first, then build the app with a polished UI and smooth user experience.