diff --git a/.idea/kotlinc.xml b/.idea/kotlinc.xml
new file mode 100644
index 0000000..69e8615
--- /dev/null
+++ b/.idea/kotlinc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.8.20" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/app/src/main/java/com/denizk0461/studip/db/AppRepository.kt b/app/src/main/java/com/denizk0461/studip/db/AppRepository.kt
index ba2a887..1b371da 100644
--- a/app/src/main/java/com/denizk0461/studip/db/AppRepository.kt
+++ b/app/src/main/java/com/denizk0461/studip/db/AppRepository.kt
@@ -135,12 +135,32 @@ class AppRepository(app: Application) {
      * Deletes all canteen offers from the database.
      */
     fun nukeOffers() {
-        dao.nukeOfferItems()
-        dao.nukeOfferCategories()
-        dao.nukeOfferCanteens()
-        dao.nukeOfferDates()
+        nukeOfferItems()
+        nukeOfferCategories()
+        nukeOfferCanteens()
+        nukeOfferDates()
     }
 
+    /**
+     * Deletes all canteen items from the database.
+     */
+    fun nukeOfferItems() { dao.nukeOfferItems() }
+
+    /**
+     * Deletes all canteen categories from the database.
+     */
+    fun nukeOfferCategories() { dao.nukeOfferCategories() }
+
+    /**
+     * Deletes all canteens from the database.
+     */
+    fun nukeOfferCanteens() { dao.nukeOfferCanteens() }
+
+    /**
+     * Deletes all canteen dates from the database.
+     */
+    fun nukeOfferDates() { dao.nukeOfferDates() }
+
     /**
      * Inserts a date into the database.
      *
diff --git a/app/src/main/java/com/denizk0461/studip/fragment/SettingsFragment.kt b/app/src/main/java/com/denizk0461/studip/fragment/SettingsFragment.kt
index abdf4c7..f3d0556 100644
--- a/app/src/main/java/com/denizk0461/studip/fragment/SettingsFragment.kt
+++ b/app/src/main/java/com/denizk0461/studip/fragment/SettingsFragment.kt
@@ -107,7 +107,14 @@ class SettingsFragment : AppFragment() {
 
         // Set long click listener for licences button to open dev code sheet
         binding.buttonLicences.setOnLongClickListener {
-            openBottomSheet(DevCodeSheet())
+            openBottomSheet(DevCodeSheet(
+                viewModel::nukeEvents,
+                viewModel::nukeOfferItems,
+                viewModel::nukeOfferCategories,
+                viewModel::nukeOfferCanteens,
+                viewModel::nukeOfferDates,
+                viewModel::nukeEverything,
+            ))
             true
         }
 
diff --git a/app/src/main/java/com/denizk0461/studip/sheet/DevCodeSheet.kt b/app/src/main/java/com/denizk0461/studip/sheet/DevCodeSheet.kt
index a2314fa..b2a3f5c 100644
--- a/app/src/main/java/com/denizk0461/studip/sheet/DevCodeSheet.kt
+++ b/app/src/main/java/com/denizk0461/studip/sheet/DevCodeSheet.kt
@@ -1,10 +1,130 @@
 package com.denizk0461.studip.sheet
 
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.util.Base64
+import android.view.View
+import android.widget.Toast
 import com.denizk0461.studip.R
+import com.denizk0461.studip.data.viewBinding
+import com.denizk0461.studip.databinding.SheetDevCodeBinding
+import java.nio.charset.StandardCharsets
 
 /**
  * Sheet that presents the user / developer with a text field to input developer codes / cheat
  * codes.
+ *
+ * @param nukeEvents            deletes all events
+ * @param nukeOfferItems        deletes all canteen items
+ * @param nukeOfferCategories   deletes all canteen categories
+ * @param nukeOfferCanteens     deletes all canteens
+ * @param nukeOfferDates        deletes all canteen dates
+ * @param nukeEverything        deletes everything
  */
-class DevCodeSheet : AppSheet(R.layout.sheet_dev_code) {
+class DevCodeSheet(
+    private val nukeEvents: () -> Unit,
+    private val nukeOfferItems: () -> Unit,
+    private val nukeOfferCategories: () -> Unit,
+    private val nukeOfferCanteens: () -> Unit,
+    private val nukeOfferDates: () -> Unit,
+    private val nukeEverything: () -> Unit,
+) : AppSheet(R.layout.sheet_dev_code) {
+
+    // View binding
+    private val binding: SheetDevCodeBinding by viewBinding(SheetDevCodeBinding::bind)
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // Execute an action based on the input
+        binding.buttonConfirm.setOnClickListener {
+            /*
+             * Codes are implemented here.
+             *
+             * About the inks; they are safe (which is suspicious of me to say), just encoded so
+             * people can't just look at the file and figure out all the codes! Of course, they're
+             * easily decoded, but who would go for that? You would have to be a pretty big nerd to
+             * do that. Then again, I was the one who encoded all of these links in the first place,
+             * so I suppose the joke's on me...
+             *
+             * If you're reading this – why?
+             */
+            when (binding.input.text.toString().uppercase()) {
+                "U1RST0JF".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS90S2k5Wi1mNnFYNA==".d())
+                "U1BJUklU".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS9XN25lMzlEU05TZw==".d())
+                "Q0xPVURT".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS9rbUJ6YTRhNTB2dw==".d())
+                "NjQxODJL".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS9EbTFyZ285UHBUcw==".d())
+                "U0FJTE9S".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS9QUHlDYXZ6OG5NWQ==".d())
+                "SE9ORVNU".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS9DSEg0OE5LUEFraw==".d())
+                "QkJVT0s/".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS90Rm1PMm1TY0tHNA==".d())
+                "NEVENT" -> { // nuke events
+                    nukeEvents()
+                    showToast("Nuked all events")
+                }
+                "NCANTE" -> { // nuke canteens
+                    nukeOfferCanteens()
+                    showToast("Nuked all canteens")
+                }
+                "NDATES" -> { // nuke dates
+                    nukeOfferDates()
+                    showToast("Nuked all dates")
+                }
+                "NCATEG" -> { // nuke categories
+                    nukeOfferCategories()
+                    showToast("Nuked all categories")
+                }
+                "NITEMS" -> { // nuke items
+                    nukeOfferItems()
+                    showToast("Nuked all items")
+                }
+                "NEVERY" -> { // nuke everything
+                    nukeEverything()
+                    showToast("Nuked everything")
+                }
+                else -> showToast("code is invalid")
+            }
+            dismiss()
+        }
+    }
+
+    /**
+     * Present the user with a toast.
+     *
+     * @param text  text to display
+     */
+    private fun showToast(text: String) {
+        Toast.makeText(context, text, Toast.LENGTH_SHORT).show()
+    }
+
+    /**
+     * Launches a web link.
+     *
+     * @param link  link to open
+     */
+    private fun launchLink(link: String) {
+        // Let the user know they accomplished something with their life
+        showToast("✨")
+
+        // Give the user a slight dopamine boost
+        startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(link)))
+    }
+
+    /**
+     * Encodes a string to Base64.
+     *
+     * @return the encoded string
+     */
+    private fun String.e(): String = Base64.encodeToString(this.toByteArray(), Base64.DEFAULT)
+
+
+    /**
+     * Decodes Base64 to a regular string.
+     *
+     * @return the decoded string
+     */
+    private fun String.d(): String = String(
+        Base64.decode(this, Base64.DEFAULT),
+        StandardCharsets.UTF_8
+    )
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/denizk0461/studip/sheet/ScheduleUpdateSheet.kt b/app/src/main/java/com/denizk0461/studip/sheet/ScheduleUpdateSheet.kt
index 4a68447..9d69f09 100644
--- a/app/src/main/java/com/denizk0461/studip/sheet/ScheduleUpdateSheet.kt
+++ b/app/src/main/java/com/denizk0461/studip/sheet/ScheduleUpdateSheet.kt
@@ -1,6 +1,7 @@
 package com.denizk0461.studip.sheet
 
 import android.os.Bundle
+import android.util.Log
 import android.view.View
 import androidx.fragment.app.FragmentActivity
 import com.denizk0461.studip.R
@@ -104,8 +105,8 @@ class ScheduleUpdateSheet(
      * @param isEventStart  whether this timestamp is for the start of the course
      */
     override fun onTimeSet(hours: Int, minutes: Int, isEventStart: Boolean) {
-        // Parse the separate ints into a timestamp string
-        val newTimestamp = "$hours:$minutes"
+        // Parse the separate ints into a timestamp string. Add a leading zero if necessary.
+        val newTimestamp = "$hours:${String.format("%02d", minutes)}"
 
         // If start > end, show an error
         if ((isEventStart && newTimestamp.parseToMinutes() > timeslotEnd.parseToMinutes()) ||
diff --git a/app/src/main/java/com/denizk0461/studip/viewmodel/SettingsViewModel.kt b/app/src/main/java/com/denizk0461/studip/viewmodel/SettingsViewModel.kt
index a7c2104..24caf91 100644
--- a/app/src/main/java/com/denizk0461/studip/viewmodel/SettingsViewModel.kt
+++ b/app/src/main/java/com/denizk0461/studip/viewmodel/SettingsViewModel.kt
@@ -10,6 +10,44 @@ import com.denizk0461.studip.model.SettingsPreferences
  */
 class SettingsViewModel(app: Application) : AppViewModel(app) {
 
+
+
+    /**
+     * Deletes everything from the database.
+     */
+    fun nukeEverything() {
+        nukeEvents()
+        nukeOfferItems()
+        nukeOfferCategories()
+        nukeOfferCanteens()
+        nukeOfferDates()
+    }
+
+    /**
+     * Deletes all Stud.IP events from the database.
+     */
+    fun nukeEvents() { doAsync { repo.nukeEvents() } }
+
+    /**
+     * Deletes all canteen items from the database.
+     */
+    fun nukeOfferItems() { doAsync { repo.nukeOfferItems() } }
+
+    /**
+     * Deletes all canteen categories from the database.
+     */
+    fun nukeOfferCategories() { doAsync { repo.nukeOfferCategories() } }
+
+    /**
+     * Deletes all canteens from the database.
+     */
+    fun nukeOfferCanteens() { doAsync { repo.nukeOfferCanteens() } }
+
+    /**
+     * Deletes all canteen dates from the database.
+     */
+    fun nukeOfferDates() { doAsync { repo.nukeOfferDates() } }
+
     /**
      * This value determines whether the user wants to have the next course in their schedule
      * highlighted.
diff --git a/app/src/main/res/drawable/engineering.xml b/app/src/main/res/drawable/engineering.xml
new file mode 100644
index 0000000..68fa52f
--- /dev/null
+++ b/app/src/main/res/drawable/engineering.xml
@@ -0,0 +1,9 @@
+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M9,15c-2.67,0 -8,1.34 -8,4v2h16v-2C17,16.34 11.67,15 9,15z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M22.1,6.84c0.01,-0.11 0.02,-0.22 0.02,-0.34c0,-0.12 -0.01,-0.23 -0.03,-0.34l0.74,-0.58c0.07,-0.05 0.08,-0.15 0.04,-0.22l-0.7,-1.21c-0.04,-0.08 -0.14,-0.1 -0.21,-0.08L21.1,4.42c-0.18,-0.14 -0.38,-0.25 -0.59,-0.34l-0.13,-0.93C20.36,3.06 20.29,3 20.2,3h-1.4c-0.09,0 -0.16,0.06 -0.17,0.15L18.5,4.08c-0.21,0.09 -0.41,0.21 -0.59,0.34l-0.87,-0.35c-0.08,-0.03 -0.17,0 -0.21,0.08l-0.7,1.21c-0.04,0.08 -0.03,0.17 0.04,0.22l0.74,0.58c-0.02,0.11 -0.03,0.23 -0.03,0.34c0,0.11 0.01,0.23 0.03,0.34l-0.74,0.58c-0.07,0.05 -0.08,0.15 -0.04,0.22l0.7,1.21c0.04,0.08 0.14,0.1 0.21,0.08l0.87,-0.35c0.18,0.14 0.38,0.25 0.59,0.34l0.13,0.93C18.64,9.94 18.71,10 18.8,10h1.4c0.09,0 0.16,-0.06 0.17,-0.15l0.13,-0.93c0.21,-0.09 0.41,-0.21 0.59,-0.34l0.87,0.35c0.08,0.03 0.17,0 0.21,-0.08l0.7,-1.21c0.04,-0.08 0.03,-0.17 -0.04,-0.22L22.1,6.84zM19.5,7.75c-0.69,0 -1.25,-0.56 -1.25,-1.25s0.56,-1.25 1.25,-1.25s1.25,0.56 1.25,1.25S20.19,7.75 19.5,7.75z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M19.92,11.68l-0.5,-0.87c-0.03,-0.06 -0.1,-0.08 -0.15,-0.06l-0.62,0.25c-0.13,-0.1 -0.27,-0.18 -0.42,-0.24l-0.09,-0.66C18.12,10.04 18.06,10 18,10h-1c-0.06,0 -0.11,0.04 -0.12,0.11l-0.09,0.66c-0.15,0.06 -0.29,0.15 -0.42,0.24l-0.62,-0.25c-0.06,-0.02 -0.12,0 -0.15,0.06l-0.5,0.87c-0.03,0.06 -0.02,0.12 0.03,0.16l0.53,0.41c-0.01,0.08 -0.02,0.16 -0.02,0.24c0,0.08 0.01,0.17 0.02,0.24l-0.53,0.41c-0.05,0.04 -0.06,0.11 -0.03,0.16l0.5,0.87c0.03,0.06 0.1,0.08 0.15,0.06l0.62,-0.25c0.13,0.1 0.27,0.18 0.42,0.24l0.09,0.66C16.89,14.96 16.94,15 17,15h1c0.06,0 0.12,-0.04 0.12,-0.11l0.09,-0.66c0.15,-0.06 0.29,-0.15 0.42,-0.24l0.62,0.25c0.06,0.02 0.12,0 0.15,-0.06l0.5,-0.87c0.03,-0.06 0.02,-0.12 -0.03,-0.16l-0.52,-0.41c0.01,-0.08 0.02,-0.16 0.02,-0.24c0,-0.08 -0.01,-0.17 -0.02,-0.24l0.53,-0.41C19.93,11.81 19.94,11.74 19.92,11.68zM17.5,13.33c-0.46,0 -0.83,-0.38 -0.83,-0.83c0,-0.46 0.38,-0.83 0.83,-0.83s0.83,0.38 0.83,0.83C18.33,12.96 17.96,13.33 17.5,13.33z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M4.74,9h8.53c0.27,0 0.49,-0.22 0.49,-0.49V8.49c0,-0.27 -0.22,-0.49 -0.49,-0.49H13c0,-1.48 -0.81,-2.75 -2,-3.45V5.5C11,5.78 10.78,6 10.5,6S10,5.78 10,5.5V4.14C9.68,4.06 9.35,4 9,4S8.32,4.06 8,4.14V5.5C8,5.78 7.78,6 7.5,6S7,5.78 7,5.5V4.55C5.81,5.25 5,6.52 5,8H4.74C4.47,8 4.25,8.22 4.25,8.49v0.03C4.25,8.78 4.47,9 4.74,9z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M9,13c1.86,0 3.41,-1.28 3.86,-3H5.14C5.59,11.72 7.14,13 9,13z"/>
+</vector>
diff --git a/app/src/main/res/layout/sheet_dev_code.xml b/app/src/main/res/layout/sheet_dev_code.xml
index 7c3d378..8e9f91d 100644
--- a/app/src/main/res/layout/sheet_dev_code.xml
+++ b/app/src/main/res/layout/sheet_dev_code.xml
@@ -21,75 +21,36 @@
         android:layout_marginBottom="8dp"
         android:text="@string/sheet_cheat_header"/>
 
-    <androidx.appcompat.widget.LinearLayoutCompat
+    <com.google.android.material.textfield.TextInputLayout
+        style="@style/Widget.Material3.TextInputLayout.OutlinedBox"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:scrollbars="horizontal">
+        android:paddingHorizontal="24dp">
 
         <com.google.android.material.textfield.TextInputEditText
             style="@style/Widget.Material3.TextInputEditText.OutlinedBox"
             android:maxLines="1"
-            android:maxLength="1"
-            android:id="@+id/input_0"
-            android:layout_width="0dp"
-            android:layout_weight="1"
+            android:maxLength="6"
+            android:id="@+id/input"
+            android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_marginEnd="2dp"/>
+            android:gravity="center"
+            android:fontFamily="serif-monospace"
+            android:inputType="textNoSuggestions"
+            android:textSize="24sp"/>
 
-        <com.google.android.material.textfield.TextInputEditText
-            style="@style/Widget.Material3.TextInputEditText.OutlinedBox"
-            android:maxLines="1"
-            android:maxLength="1"
-            android:id="@+id/input_1"
-            android:layout_width="0dp"
-            android:layout_weight="1"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="2dp"
-            android:layout_marginEnd="2dp"/>
+    </com.google.android.material.textfield.TextInputLayout>
 
-        <com.google.android.material.textfield.TextInputEditText
-            style="@style/Widget.Material3.TextInputEditText.OutlinedBox"
-            android:maxLines="1"
-            android:maxLength="1"
-            android:id="@+id/input_2"
-            android:layout_width="0dp"
-            android:layout_weight="1"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="2dp"
-            android:layout_marginEnd="2dp"/>
-
-        <com.google.android.material.textfield.TextInputEditText
-            style="@style/Widget.Material3.TextInputEditText.OutlinedBox"
-            android:maxLines="1"
-            android:maxLength="1"
-            android:id="@+id/input_3"
-            android:layout_width="0dp"
-            android:layout_weight="1"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="2dp"
-            android:layout_marginEnd="2dp"/>
-
-        <com.google.android.material.textfield.TextInputEditText
-            style="@style/Widget.Material3.TextInputEditText.OutlinedBox"
-            android:maxLines="1"
-            android:maxLength="1"
-            android:id="@+id/input_4"
-            android:layout_width="0dp"
-            android:layout_weight="1"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="2dp"
-            android:layout_marginEnd="2dp"/>
-
-        <com.google.android.material.textfield.TextInputEditText
-            style="@style/Widget.Material3.TextInputEditText.OutlinedBox"
-            android:maxLines="1"
-            android:maxLength="1"
-            android:id="@+id/input_5"
-            android:layout_width="0dp"
-            android:layout_weight="1"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="2dp"/>
-
-    </androidx.appcompat.widget.LinearLayoutCompat>
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/button_confirm"
+        style="@style/Widget.Material3.Button.TonalButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/confirm"
+        android:layout_gravity="end"
+        android:layout_marginTop="8dp"
+        android:layout_marginEnd="24dp"
+        android:layout_marginBottom="8dp"
+        app:icon="@drawable/engineering"/>
 
 </androidx.appcompat.widget.LinearLayoutCompat>
\ No newline at end of file
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 9347197..862cd2a 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -14,6 +14,7 @@
     <string name="save">Speichern</string>
     <string name="delete">Löschen</string>
     <string name="cancel">Abbrechen</string>
+    <string name="confirm">Bestätigen</string>
     <string name="sheet_schedule_update_header">Veranstaltung bearbeiten</string>
     <string name="sheet_schedule_update_title_hint">Veranstaltungstitel</string>
     <string name="sheet_schedule_update_lecturers_hint">Dozierende(r)</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 783903d..09537be 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -14,6 +14,7 @@
     <string name="save">Save</string>
     <string name="delete">Delete</string>
     <string name="cancel">Cancel</string>
+    <string name="confirm">Confirm</string>
     <string name="sheet_schedule_update_header">Edit Event</string>
     <string name="sheet_schedule_update_title_hint">Event title</string>
     <string name="sheet_schedule_update_lecturers_hint">Lecturer(s)</string>