diff --git a/Codesnippets.md b/Codesnippets.md
new file mode 100644
index 0000000..2749919
--- /dev/null
+++ b/Codesnippets.md
@@ -0,0 +1,51 @@
+# Codesnippets
+
+## PHP
+
+### IPV4 --> CIDR
+
+```php
+function subnetMaskToCidr(string $mask): int
+{
+    $long = ip2long($mask);
+
+    if ($long === false) {
+        throw new InvalidArgumentException("Ungültige Subnetzmaske");
+    }
+    
+    $cidr = 0;
+    
+    for ($i = 31; $i >= 0; $i--) {
+        if (($long & (1 << $i)) !== 0) {
+            $cidr++;
+        } else {
+            break;
+        }
+    }
+    
+    return $cidr;
+
+}
+```
+
+oder
+
+```php  
+function subnetMaskToCidr(string $mask): int
+{
+    $octets = explode('.', $mask);
+    $cidr = 0;
+
+    foreach ($octets as $octet) {
+        while ($octet > 0) {
+            $cidr++;
+            $octet &= $octet - 1;
+        }
+    }
+    
+    return $cidr;
+
+}
+```
+
+
diff --git a/LaTeX_Typst.md b/LaTeX_Typst.md
new file mode 100644
index 0000000..a16bbd9
--- /dev/null
+++ b/LaTeX_Typst.md
@@ -0,0 +1,17 @@
+# LaTeX -- Typst
+
+## Griechische Buchstaben
+
+### kleine griechische Buchstaben
+
+| LaTeX    | Vorschau | Typst |
+|:-------- | -------- | ----- |
+| `\alpha` | $\alpha$ | alpha |
+| `\beta`  | $\beta$  | beta  |
+| `\gamma` | $\gamma$ | gamma |
+| $\delta$ | $\delta$ | delta |
+|          |          |       |
+
+https://qwinsi.github.io/tex2typst-webapp/cheat-sheet.html
+
+