Which Linux format should I use?

AppImage if you want portability, are on a non-Debian distribution (Fedora, Arch, openSUSE), or want to try Sei Wallet without modifying system packages. .deb if you're on Debian, Ubuntu, or a derivative and want apt-managed installation with desktop menu integration.

Can I install Sei Wallet from my distribution's package repository?

Not currently. We may pursue Debian/Ubuntu PPA, Arch AUR, or Flatpak distribution in future Phase 7 work. For now, the AppImage and .deb downloads from /download are the official channels.

How do I make sure I'm running the latest version?

Click 'Check for Updates' inside the app. The wallet compares your version against the current release on seiwallet.net. We don't auto-update on Linux because Linux users typically prefer to manage updates themselves.

Where is my wallet data stored on Linux?

By default, in ~/.config/sei-wallet/ (the standard XDG config directory). The seed phrase is encrypted at rest using PBKDF2 with high iteration count plus AES-256-GCM. The encrypted seed never leaves this directory.

Why isn't Sei Wallet on the Snap Store / Flathub?

We've considered both Snap and Flatpak. Both have trade-offs (sandboxing models, update mechanisms, signing) we want to evaluate carefully before committing. The AppImage covers most use cases without those trade-offs.

Sei Wallet on Linux · AppImage vs .deb

Two Linux distribution formats

AppImage is a self-contained executable. Download, mark executable, run. No installation, no root, no package manager. Works on Debian, Ubuntu, Fedora, Arch, openSUSE, etc. Bundles all dependencies internally.

.deb package is the Debian package format. Install via apt or dpkg; integrates with the system (desktop entry, application menu, automatic apt updates).

If you're on Fedora, Arch, openSUSE, or another non-Debian distribution: use the AppImage. We don't ship .rpm or PKGBUILD packages.

Installing the AppImage

Download from /download
Verify the PGP signature (next section)
Make executable: chmod +x sei-wallet-[version].AppImage
Run: ./sei-wallet-[version].AppImage
(Optional) Move to ~/Applications for organization

The AppImage doesn't auto-update. When a new version releases, download the new AppImage and replace.

Installing the .deb package

Download from /download
Verify the PGP signature
Install: sudo apt install ./sei-wallet-[version].deb (note leading ./)
Or with dpkg: sudo dpkg -i sei-wallet-[version].deb && sudo apt-get install -f
Launch from your application menu or run sei-wallet

Removing: sudo apt remove sei-wallet. Wallet data persists in ~/.config/sei-wallet/.

Verifying the PGP signature

This is the most important step. We sign every release with the Sei Wallet Labs Inc PGP key.

Get our PGP key. Download sei-wallet-labs.asc from /security, or:

gpg --keyserver hkps://keys.openpgp.org --recv-keys [FINGERPRINT]

Get the signature file. Each release ships with a detached .asc signature.

Verify:

gpg --verify sei-wallet-[version].AppImage.asc sei-wallet-[version].AppImage

Read the output. Successful:
```
gpg: Good signature from "Sei Wallet Labs Inc <security@seiwallet.net>"
```
The "not certified" warning is normal. The cryptographic verification has passed.

Failed verification: BAD signature — do not run the binary. Re-download from /download. If failure persists, contact security@seiwallet.net.

What happens if I skip verification

You're trusting whatever you downloaded blindly. Most of the time this works fine — modern HTTPS makes tampered downloads unlikely. But "unlikely" isn't "impossible," and the consequence of running a tampered wallet is your seed phrase getting stolen. Verification takes 30 seconds.

Common Linux issues

"AppImage won't run." Check executable bit. Install FUSE: sudo apt install fuse.

"apt can't install due to dependencies." Run sudo apt-get install -f after dpkg install.

"Doesn't appear in menu after .deb." Try sudo update-desktop-database or log out/in.

"Wrong DPI / monitor." Try GDK_SCALE=1.5 ./sei-wallet-[version].AppImage.

"Can I use Sei Wallet on Wayland?" Yes. If issues, force X11: --no-sandbox --disable-features=UseOzonePlatform.

Updating to a new version

AppImage: download new file, verify, replace. .deb: download new .deb, verify, install (apt handles in-place upgrade). We don't auto-update on Linux.

Sei Wallet on Linux: AppImage vs .deb installation