SCForms is a new project aiming to provide a simple GUI library for R6RS Scheme, based on the venerable XForms toolkit (v1.2.4), using R6RS-PFFI.
The project itself is licensed under MPL 2.0, except for API files, which are licensed under LGPL 2.1+, the same licence as XForms.
Rewriting headers with FFI to expose API to Scheme