neleftheriou8/GFI-Calculator-and-Bunkering-Optimizer

GFI Bunkering Optimizer — Single Vessel (Hugging Face Spaces)

This folder is ready to upload to a Hugging Face Space using the Streamlit SDK.

How to deploy (no servers, no admin)

1. 1.Create a free account at huggingface.co
2. 2.Click New Space → SDK: Streamlit → pick a name (e.g., gfi-bunkering-optimizer), set Public (or Private if you have a paid plan), then Create Space.
3. 3.Drag‑and‑drop these files (app.py and requirements.txt) into the Space (or upload the provided zip).
4. 4.Wait for the build to finish; you’ll get a public URL you can share.

Notes

• —The app writes defaults to a small JSON file in the Space workspace. On free tiers the container may sleep; values persist while the container stays warm and may reset after rebuilds. For per‑user persistence across browsers, we can switch to browser local storage if needed.
• —All calculations are local to the Space. No external services required.