diff --git a/common.nix b/common.nix
index 266ede4..ed74697 100644
--- a/common.nix
+++ b/common.nix
@@ -44,6 +44,7 @@ with builtins;
       cool-retro-term
 
       jdk
+      jdk24
 
       libsecret
       fzf
diff --git a/hosts/denkbrett/configuration.nix b/hosts/denkbrett/configuration.nix
index deafc0d..f034002 100644
--- a/hosts/denkbrett/configuration.nix
+++ b/hosts/denkbrett/configuration.nix
@@ -56,6 +56,7 @@
     pkgs.mobile-broadband-provider-info
     pkgs.modem-manager-gui
     pkgs.wireshark
+    pkgs.jetbrains.idea-ultimate
   ];
 
   # Bootloader.
diff --git a/modules/desktop/home/browser.nix b/modules/desktop/home/browser.nix
index 6829d78..932db95 100644
--- a/modules/desktop/home/browser.nix
+++ b/modules/desktop/home/browser.nix
@@ -375,6 +375,7 @@
           let
             domains = [
               "bahn.expert"
+              "flugzeug.expert"
               "traewelling.de"
               "katzen.cafe"
               "catgirl.cloud"
diff --git a/modules/editors/helix/default.nix b/modules/editors/helix/default.nix
index 1a0cd84..71ade3e 100644
--- a/modules/editors/helix/default.nix
+++ b/modules/editors/helix/default.nix
@@ -57,7 +57,7 @@
         };
         "rust-analyzer" = {
           config = {
-            check.command = "check";
+            check.command = "clippy";
             completion.snippets.custom = {
               "pub fn" = {
                 prefix = [
diff --git a/modules/shell/git.nix b/modules/shell/git.nix
index 7133bcb..52a2e40 100644
--- a/modules/shell/git.nix
+++ b/modules/shell/git.nix
@@ -26,7 +26,7 @@
         };
         signing = {
           format = "ssh";
-          key = lib.mkDefault "${pkgs.writeText "blue_nk3.pub" "256 SHA256:h7d9+w4uACtz63L/MI7B1oB3fYxh8u+q6bs+SsSTKzY ssh:"}";
+          key = lib.mkDefault "${pkgs.writeText "blue_nk3.pub" "SHA256:h7d9+w4uACtz63L/MI7B1oB3fYxh8u+q6bs+SsSTKzY ssh:"}";
           signByDefault = true;
         };
       };