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@@ -43,6 +43,14 @@ Written in 1999.
 
 [GitHub](https://github.com/nineties-retro/sps)
 
+## Pre-Scheme for Guile
+
+A port of Pre-Scheme from Scheme 48 to Guile.
+
+Started in 2022.
+
+[GitLab](https://gitlab.com/flatwhatson/guile-prescheme/)
+
 ## Research papers
 
 From the MITRE Corporation: