gnu: Add texlive-scheme-minimal.

* gnu/packages/tex.scm (texlive-scheme-minimal): New variable.

gnu/packages/tex.scm

@@ -13044,6 +13044,23 @@ (define-public texlive-xfor
 current iteration.")
     (license license:lppl)))
 
+(define-public texlive-scheme-minimal
+  (package
+    (name "texlive-scheme-minimal")
+    (version (number->string %texlive-revision))
+    (source #f)
+    (build-system trivial-build-system)
+    (arguments (list #:builder #~(mkdir #$output)))
+    (propagated-inputs (list texlive-collection-basic))
+    (home-page "https://www.tug.org/texlive/")
+    (synopsis "Minimal scheme (plain only)")
+    (description
+     "This is the minimal TeX Live scheme, with support for only plain
+TeX. (No LaTeX macros.) LuaTeX is included because Lua scripts are used in TeX
+Live infrastructure.  This scheme corresponds exactly to
+@code{collection-basic}.")
+    (license (license:fsf-free "https://www.tug.org/texlive/copying.html"))))
+
 (define-public texlive-scheme-basic
   (package
     (name "texlive-scheme-basic")