diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a942a37..0e13962 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -5,7 +5,13 @@
 ci:
   # https://github.com/pre-commit-ci/issues/issues/83
   autoupdate_schedule: quarterly
-  skip: [pnpm-install-dev, prettier]
+  skip: [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
@@ -13,18 +19,28 @@ repos:
     hooks:
       - id: trailing-whitespace
         args: ["--markdown-linebreak-ext", "md,markdown"]
+        exclude_types: [svg, tsv]
+        #- id: end-of-file-fixer
       - id: check-yaml
       - id: check-added-large-files
       - id: check-case-conflict
+      - id: check-executables-have-shebangs
       - id: check-json
       - id: check-merge-conflict
+      - id: check-shebang-scripts-are-executable
+      - id: check-toml
+      - id: check-xml
       - id: destroyed-symlinks
       - id: detect-private-key
       - id: fix-byte-order-marker
+      - id: check-merge-conflict
       - id: mixed-line-ending
         args: [--fix=auto]
       - id: pretty-format-json
-        args: [--autofix, --no-ensure-ascii]
+        args:
+          # Remember also: --no-sort-keys
+          # ASCII excludes the älphäbet amongst others
+          [--autofix, --indent, "\t", --no-ensure-ascii]
 
   - repo: https://github.com/pre-commit-ci/pre-commit-ci-config
     rev: v1.6.1
@@ -32,23 +48,16 @@ repos:
       - id: check-pre-commit-ci-config
 
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.29.0
+    rev: 0.29.1
     hooks:
       - id: check-dependabot
       - id: check-github-workflows
 
   - repo: local
     hooks:
-      - id: pnpm-install-dev
-        name: Install pnpm dev dependencies
-        entry: corepack pnpm install -D
-        language: system
-        always_run: true
-        #verbose: true
-        pass_filenames: false
       - id: prettier
         name: prettier
-        entry: corepack pnpm exec prettier --cache --ignore-unknown --write
+        entry: corepack pnpx prettier --cache --ignore-unknown --write
         language: system
 
   - repo: https://github.com/editorconfig-checker/editorconfig-checker.python
@@ -56,3 +65,4 @@ repos:
     hooks:
       - id: editorconfig-checker
         alias: ec
+        args: [-disable-max-line-length]