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skyjake.fi

Lagrange

Lagrange is a cross-platform client for browsing Geminispace. It offers modern conveniences familiar from web browsers, such as smooth scrolling, inline image viewing, multiple tabs, visual themes, Unicode fonts, bookmarks, history, and page outlines.

Like Gemini, Lagrange has been designed with minimalism in mind. It depends on a small number of essential libraries. It is written in C and uses SDL for hardware-accelerated graphics. OpenSSL is used for secure communications.

Features

• Beautiful typography with full Unicode support
• Autogenerated page style and Unicode icon for each Gemini domain
• Smart suggestions when typing the URL — search bookmarks, history, identities
• Sidebar for page outline, managing bookmarks and identities, and viewing history
• Multiple tabs and split view
• Identity management — create and use TLS client certificates
• Audio playback: MP3, Ogg Vorbis, WAV
• Curses-based TUI as an alternative to the graphical interface
• And more! Open `about:help` in the app, or see help.gmi

Downloads

Prebuilt binaries are available for Windows 64-bit, macOS 10.13 or later (arm64 and x86_64), Linux AppImage (x86_64, aarch64, and armhf), and Android:

Mobile

Beta builds are available for both iOS (TestFlight) and Android (as APKs):

Source

You can build from source on POSIX-compatible platforms:

What's new?

v1.21

• Inline input prompts (new default).
• Top/bottom prompts can be unfocused for normal page access.
• Support for Gopher-over-TLS ("gophers://").
• Better tab bar layout (doesn't overlap sidebars any more).
• Better middle-button scrolling (no need to drag constantly).
• Persistent multi-window placement.
• "Debug Information" page shows which optional build features are enabled.
• Option for thick scroll bars.
• Gopher fixes: selectors in URIs; parsing tilde-prefixed usernames; spurious autoreloads.
• Bug fixes: potential crash when opening split view; inadvertent redirect limit for Titan; detecting ZIP archives with prepended data; word-breaking tweaks in text renderer; UI glitches.

Feedback

If you have questions, comments or improvement ideas, you can reach me via:

Known issues

Flatpak

Flatpak applications run in a sandbox that limits their access to the rest of the system. At the moment, Lagrange has not been fully adapted to use Flatpak Portal APIs, so the following are known issues:

• Unable to open HTTP/HTTPS links via the default browser.
• Multiple instances of the application overwrite each other's data.

Wayland

Modern versions of SDL should work well with Lagrange using the "wayland" SDL video driver. This is the default if a Wayland session is detected. On old versions of SDL, setting the `SDL_VIDEODRIVER=x11` environment variable may help.

Documentation and tutorials

The repository README details the basic build steps, configuration options, and has a few platform-specific notes.

See also