About Kryon Labs
Kryon Labs develops software inspired by the Plan 9 operating system philosophy. We believe that everything is a file — and that simple, composable protocols like 9P enable elegant distributed computing.
Our current focus is Kryon, a lightweight UI toolkit written in C using plan9port. It brings Plan 9's elegant "everything is a file" philosophy to modern application development — control your entire UI through simple file I/O operations via the 9P protocol.
Architecture
Kryon is built with standard C and Plan 9 tools:
- C language: Native C implementation using plan9port compilers
- 9P protocol: Filesystem-based control interface
- Widgets: Labels and buttons with filesystem control
- Cross-platform: Runs on Linux via plan9port (/tmp/kry), native on Plan 9 (/mnt/kry)
Widget System
Kryon provides basic widget types:
- WLabel: Text display widgets
- WButton: Interactive button widgets with click events
- WDropdown: Selection dropdown menus
- WSlider: Numeric slider controls
- WSwitch: Toggle switches
Filesystem Interface
Control every aspect of your UI through the filesystem. The toolkit mounts to /mnt/kry (or /tmp/kry on Linux). Each widget exposes its text property as a file:
/mnt/kry/[widgetid]/text
For example:
/mnt/kry/1/text # First widget text
/mnt/kry/2/text # Second widget text
/mnt/kry/3/text # Third widget textProjects
krysrv
The 9P server that handles the widget filesystem and manages all widget state through file I/O operations.
View Project →krydraw
Rendering engine that draws widgets to the display, handling all graphics and visual updates.
View Project →kryweb
Web frontend that provides a browser-based interface to the Kryon widget system via 9P.
View Project →Building
Build on Plan 9
$ mkBuild on Linux with plan9port
$ make
