what is filament_calibration_wizard fr?

PerfectFit is a guided web app for 3D printer owners who want to properly calibrate their filament settings for slicer software called Orca Slicer or Bambu Studio. Calibration is normally a fiddly process involving spreadsheets, tutorials, and trial and error, and this tool replaces that with a step by step wizard covering temperature, flow ratio, pressure advance, retraction, maximum print speed, and a final test print to confirm everything worked. It offers two ways of working. Coach Mode explains things in plain language, gives examples of good and bad results, and helps you decide what to do if you are unsure, while Expert Mode gives a faster, more condensed flow for people who already know what they are doing. Every calculation the tool performs shows its inputs, the formula used, and how the numbers were combined, so nothing happens as a hidden black box. It also tracks a calibration timeline, gives you a confidence score, suggests when a retest might be worth doing, and lets you print a one page calibration card with a QR code or a full detailed report. One notable design choice is privacy. There is no account to create, no server backend, and no analytics or tracking, everything including any photos you use stays stored locally in your own browser. Running it for development requires Node.js and standard commands to install dependencies and start a local server, and building it produces a set of static files that can be hosted anywhere, including through Nginx or Apache, without needing a database or a backend language like PHP. The project also provides a Docker setup for running it in a container, and instructions for packaging it as a small native desktop app using a tool called Tauri, which the README notes is far lighter than alternatives like Electron. Because the app stores its data per browser origin, moving it to a different domain means starting fresh unless you export and reimport a backup first.