diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a136337
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.pdf
diff --git a/src/lib.pdf b/src/lib.pdf
deleted file mode 100644
index ef0feec..0000000
Binary files a/src/lib.pdf and /dev/null differ
diff --git a/src/lib.typ b/src/lib.typ
index 508f379..d4bc030 100644
--- a/src/lib.typ
+++ b/src/lib.typ
@@ -1,4 +1,4 @@
-#let generic(numbering: true, author: "Jade", date,  doc) = {
+#let generic(numbering: true, author: "Jade", date: "",  doc) = {
   // Word abbreviations
   show "afg": "Aufgabe";
   show "def": "Definition";
@@ -7,8 +7,8 @@
   show "wdh": "Wiederholung";
 
   // symbol shortcuts
-  show "->": sym.arrow.right;
-  show "<-": sym.arrow.left;
+  show "->": sym.arrow.r;
+  show "<-": sym.arrow.l;
 
   show heading: it => {
     set text(font: "Departure Mono")