pstk
There are 3 repositories under pstk topic.
KikyTokamuro/guile-pstk
PS/TK version (https://wiki.tcl-lang.org/page/PS%2FTk) fixed to work fine on modern GNU Guile
Akaizoku/PSTK
PowerShell Tool Kit
mftrhu/guipher
A Gopher client written in Guile scheme using Tk for its GUI