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On the recordRead 7 Oct 202614 facts
MustardOS
Plans and prices
Artificer
$6a month
testing crew preview access · weekly testing updates · special Discord access
Read 7 Oct 2026 · muos.dev
Knight
$9a month
exclusive testing group · weekly testing updates · name on credits screen · special Discord access
Read 7 Oct 2026 · muos.dev
Hero
$12a month
nightly development exclusives · name on credits screen · special Discord access · behind the scenes
Read 7 Oct 2026 · muos.dev
On the record
- Audience
- MustardOS says it is designed for both people new to handhelds and experienced enthusiasts.muos.dev · read 7 Oct 2026
- Default credentials
- The Filebrowser guide gives the default username and password as muos and muos.muos.dev · read 7 Oct 2026
- Device support
- The supported-device page lists handhelds from Anbernic and TrimUI, including RG35XX and TrimUI Smart Pro models.muos.dev · read 7 Oct 2026
- Emulation
- The documentation lists supported systems and cores including RetroArch and ScummVM.muos.dev · read 7 Oct 2026
- File access
- The built-in Filebrowser can be accessed through a browser on the same local network after enabling SFTP + Filebrowser.muos.dev · read 7 Oct 2026
- Funding
- The project accepts one-off donations and subscriptions to support software, hardware, and development accessories.muos.dev · read 7 Oct 2026
- Installation
- Installation uses an image flashing tool to write MustardOS to an SD card, which is then inserted into the handheld.muos.dev · read 7 Oct 2026
- Personalization
- The firmware is configurable and themeable, with options to customize its look, style, and behavior.muos.dev · read 7 Oct 2026
- Product
- MustardOS (muOS) is custom firmware primarily for handheld devices.muos.dev · read 7 Oct 2026
- Project origin
- The site describes MustardOS as having begun as a small personal hobby project that grew into a community project.muos.dev · read 7 Oct 2026
- Project team
- The crew page identifies XongleBongle as the lead developer behind MustardOS.muos.dev · read 7 Oct 2026
- Storage caveat
- The Syncthing guide says its Watch for Changes option works only on FAT32 partitions and should be disabled for exFAT.muos.dev · read 7 Oct 2026
- Support
- The site points users to its Discord and community forum for assistance.muos.dev · read 7 Oct 2026
- Sync and backup
- The Syncthing guide describes syncing the MustardOS save folder to a PC as a backup method.muos.dev · read 7 Oct 2026
