Installation
Get Overlordius ready on your Windows or Linux computer, then continue to your first use in the app.
Before you install
- Windows on x64.
- Or Linux on x64: a distribution with glibc 2.38 or newer, such as Ubuntu 24.04 LTS, with GTK 3, NSS, FUSE (
fusermount3orfusermount),unshareand user namespaces, and a Secret Service (such as GNOME Keyring) or KWallet. - git available in your
PATH. - An Overlordius account, created with a single-use invitation code in the app or on the website.
- An API key from at least one AI provider: Anthropic, OpenAI, DeepSeek or OpenRouter.
macOS, ARM computers and Linux distributions with an older glibc, such as Ubuntu 22.04, are not supported.
Install on Windows
Download the installer
Sign in on the download page to get the Windows installer. The download is about 330.6 MB.
Run the installer
Overlordius installs for the current user without administrator privileges, in
%LOCALAPPDATA%\Programs\Overlordius. The installed app takes up about 1.1 GB.The installer asks you to accept the license. You can read the Terms of use before installing.
Claude Code and Codex are bundled with the app. You do not need npm.
Windows SmartScreen warning
The installer is deliberately unsigned, so SmartScreen shows a warning during installation and with each new version.
Click “More info”, then “Run anyway”.
Updates are protected by Overlordius’s own signing key. The app rejects any update that has not been signed by Overlordius.
Install on Linux
Download the AppImage
Sign in on the download page to get the Linux AppImage. The download is about 391.7 MB.
Make it executable and run it
The AppImage is the whole app in one file, with nothing to install. Keep it in a folder you can write to, such as
~/Applications: updates replace the file there. From a terminal:mkdir -p ~/Applications mv ~/Downloads/Overlordius-*-x86_64.AppImage ~/Applications/ chmod +x ~/Applications/Overlordius-*-x86_64.AppImage ~/Applications/Overlordius-*-x86_64.AppImageClaude Code and Codex are bundled with the app. You do not need npm.
Ubuntu 23.10 and later: allow the sandbox
These versions restrict user namespaces with AppArmor, so the app would start without its sandbox. Check with
cat /proc/sys/kernel/apparmor_restrict_unprivileged_userns:1means restricted. If so, add this profile once, then restart the app:sudo tee /etc/apparmor.d/overlordius >/dev/null <<'EOF' abi <abi/4.0>, include <tunables/global> profile overlordius "FOLDER/Overlordius*.AppImage" flags=(unconfined) { userns, include if exists <local/overlordius> } EOF sudo apparmor_parser -r /etc/apparmor.d/overlordiusReplace
FOLDERwith the full path of the AppImage's folder, such as/home/ana/Applications. Moving the AppImage to another folder needs the profile again. To remove it:sudo apparmor_parser -R /etc/apparmor.d/overlordius, then delete the file.Keep a keyring running
Overlordius encrypts your session and keys with your desktop's keyring: a Secret Service, such as GNOME Keyring, or KWallet. Keep it installed and unlocked when you open the app.
Automatic updates
Overlordius checks for updates when it opens and every six hours. It downloads them without interrupting your work, then offers “Restart to update”.
On Linux, automatic updates work when you start the app from its AppImage file.
Your local data
Your data is stored in %APPDATA%\Overlordius on Windows and ~/.config/Overlordius on Linux. Your session and keys are encrypted.