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External apps

External apps are not part of the firmware: they are installed on the phone separately, one by one, and only if you want them. Once installed, an external app shows up in the menu among the others, in its section, and works like the built-in apps.

App What it does
Telegram Your Telegram chats, replies, articles in Instant View, notifications
GitHub Your GitHub notifications, pull requests, issues and repositories
Email Your email account over IMAP: its folders and their messages, so far
Trilium Your Trilium Notes, synced with your server: browse, search, write and edit
Assistant Chats with an AI language model (DeepSeek), answers formatted, web search
Browser Web pages with JavaScript, for the sites Web Lite cannot show
Doom Doom, Doom II, Final Doom, Freedoom and other games on its engine
Genesis Sega Mega Drive / Genesis, Sega CD, Master System and Game Gear games

Installing an app

External apps are installed from the computer the firmware was built on, with the phone connected over USB and the computer allowed on it (see Allowing a computer). In the firmware's folder, run:

just app telegram

with the app's name in lower case (telegram, github, email, trilium, assistant, web for Browser, doom, genesis). The phone's interface restarts and opens the new app. just apps installs all of them at once, and just app-rm telegram removes one.

Kept across updates

Installed apps live with your data on the phone, not in the firmware: updating the firmware keeps them, their settings and what they downloaded.

An app that no longer fits the firmware

An update that changes what the apps are built on leaves out the apps installed before it: they no longer show in the menu, but their data stays. Install them again (just app as above) after updating the firmware with such a change.