diff --git a/iridium_installer/ui/pages/user.py b/iridium_installer/ui/pages/user.py
index 3eec538..101a6c6 100644
--- a/iridium_installer/ui/pages/user.py
+++ b/iridium_installer/ui/pages/user.py
@@ -29,10 +29,16 @@ class UserPage(Adw.Bin):
 
         self.fullname_row = Adw.EntryRow()
         self.fullname_row.set_title("Full Name")
+        self.fullname_row.set_text("Administrator")
+        self.fullname_row.connect("notify::text", self.on_fullname_changed)
         group.add(self.fullname_row)
 
         self.username_row = Adw.EntryRow()
         self.username_row.set_title("Username")
+        self.username_row.set_text("admin")
+        self.username_handler_id = self.username_row.connect(
+            "notify::text", self.on_username_changed
+        )
         group.add(self.username_row)
 
         self.password_row = Adw.PasswordEntryRow()
@@ -50,16 +56,66 @@ class UserPage(Adw.Bin):
 
         self.hostname_row = Adw.EntryRow()
         self.hostname_row.set_title("Hostname")
-        self.hostname_row.set_text("iridium-pc")
+        self.hostname_row.set_text("iridium")
         host_group.add(self.hostname_row)
 
-        # Administrator
-        admin_group = Adw.PreferencesGroup()
-        admin_group.set_margin_top(12)
-        box.append(admin_group)
+        self.username_manually_set = False
 
-        admin_row = Adw.SwitchRow()
-        admin_row.set_title("Make this user administrator")
-        admin_row.set_subtitle("Add to sudoers group")
-        admin_row.set_active(True)
-        admin_group.add(admin_row)
+    def on_fullname_changed(self, entry, _pspec):
+        if self.username_manually_set:
+            return
+
+        username = entry.get_text().lower()
+        if username == "administrator":
+            username = "admin"
+        for sign in (
+            " ",
+            "-",
+            "_",
+            ".",
+            ",",
+            ":",
+            ";",
+            "!",
+            "?",
+            "/",
+            "\\",
+            "|",
+            "@",
+            "#",
+            "$",
+            "%",
+            "^",
+            "&",
+            "*",
+            "(",
+            ")",
+            "[",
+            "]",
+            "{",
+            "}",
+            "'",
+            '"',
+            "`",
+            "~",
+            "<",
+            ">",
+            "=",
+            "+",
+        ):
+            username = username.replace(sign, "_")
+
+        self.username_row.handler_block(self.username_handler_id)
+        self.username_row.set_text(username)
+        self.username_row.handler_unblock(self.username_handler_id)
+
+    def on_username_changed(self, entry, _pspec):
+        self.username_manually_set = True
+
+    def get_user_info(self):
+        return {
+            "fullname": self.fullname_row.get_text(),
+            "username": self.username_row.get_text(),
+            "password": self.password_row.get_text(),
+            "hostname": self.hostname_row.get_text(),
+        }
diff --git a/iridium_installer/ui/window.py b/iridium_installer/ui/window.py
index 0b10eee..9579a5c 100644
--- a/iridium_installer/ui/window.py
+++ b/iridium_installer/ui/window.py
@@ -158,6 +158,8 @@ class InstallerWindow(Adw.ApplicationWindow):
             print(f"Mode: {mode}")
             modules = self.modules_page.get_modules()
             print(f"Modules: {modules}")
+            user_info = self.user_page.get_user_info()
+            print(f"User: {user_info}")
 
             partitions_config = {}
             if mode == "manual":