App Submission: Mainsail

[Julienpeps]

App Submission

Mainsail

A modern and responsive user interface for Klipper. Control and monitor your printer from everywhere, from any device.

This application will not work on its own, as it requires a Klipper server along with a Moonraker service running either on another device, or another container on umbrel.

It might be surprising to see that there is no persistent storage in the application's configuration, but that's normal. There is very little data to be stored on Mainsail's side, and the settings are actually stored in the client's browser.

256x256 SVG icon

The SVG from Mainsail's repo:
https://raw.githubusercontent.com/mainsail-crew/mainsail/refs/heads/develop/public/img/logo.svg

Gallery images

I am currently unable to add any screenshots from the app myself, as I am still waiting on my printer, but there are some screenshots on the documentation's main page: https://docs.mainsail.xyz/

I will update if necessary.

I have tested my app on:

• umbrelOS on a Raspberry Pi
• umbrelOS on an Umbrel Home
• umbrelOS on Linux VM

[github-actions]

🎉   Linting finished with no errors or warnings   🎉

Thank you for your submission! This is an automated linter that checks for common issues in pull requests to the Umbrel App Store.

Please review the linting results below and make any necessary changes to your submission.

Linting Results

Severity	File	Description
ℹ️	mainsail/docker-compose.yml	Potentially using unsafe user in service "web": The default container user "root" can lead to security vulnerabilities. If you are using the root user, please try to specify a different user (e.g. "1000:1000") in the compose file or try to set the UID/PUID and GID/PGID environment variables to 1000.

Legend

Symbol	Description
❌	Error: This must be resolved before this PR can be merged.
⚠️	Warning: This is highly encouraged to be resolved, but is not strictly mandatory.
ℹ️	Info: This is just for your information.