diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..22969a1
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,21 @@
+root = true
+
+[*]
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+indent_style = tab
+indent_size = tab
+
+[LICENSE]
+indent_style = space
+
+[*.{markdown,md}]
+trim_trailing_whitespace = false
+indent_style = space
+indent_size = 2
+
+[*.{cff,yaml,yml}]
+indent_style = space
+indent_size = 2
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..e2d65ed
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*	text=auto eol=lf
diff --git a/.gitignore b/.gitignore
index 747d42e..29fa2b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -300,4 +300,3 @@ TSWLatexianTemp*
 # option is specified. Footnotes are the stored in a file with suffix Notes.bib.
 # Uncomment the next line to have this generated file ignored.
 #*Notes.bib
-
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..db2d662
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,21 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-case-conflict
+      - id: check-executables-have-shebangs
+      - id: check-shebang-scripts-are-executable
+      - id: destroyed-symlinks
+      - id: detect-private-key
+      - id: end-of-file-fixer
+      - id: fix-byte-order-marker
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: "v3.0.0-alpha.6"
+    hooks:
+      - id: prettier
+  - repo: https://github.com/editorconfig-checker/editorconfig-checker.python
+    rev: "2.7.1"
+    hooks:
+      - id: editorconfig-checker
+        alias: ec
diff --git a/README.md b/README.md
index 52ab429..078d74c 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
 # kirja
 
-Ajatus miten kirjaprojektin voisi toteuttaa
\ No newline at end of file
+Ajatus miten kirjaprojektin voisi toteuttaa