.pre-commit-config.yaml: specify default_language_versions, use xelatex for latexmk

.pre-commit-config.yaml

@@ -1,5 +1,3 @@
-# @format
-
 # See https://pre-commit.com for more information
 # See https://pre-commit.ci for more information
 ci:
@@ -9,6 +7,12 @@ ci:
   autoupdate_schedule: quarterly
   skip: [latexmk, exiftool, prettier]
 
+default_language_version:
+  node: "lts"
+  # Remember .python-version !
+  python: "3.12"
+  ruby: ".ruby-version"
+
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.6.0
@@ -78,7 +82,7 @@ repos:
         exclude_types: [json]
       - id: latexmk
         name: latexmk
-        entry: latexmk -quiet -f
+        entry: latexmk -xelatex -quiet -f
         language: system
         types: [text, tex]
         # I have no idea where latexmk wants the template