diff --git a/c/flake.lock b/c/flake.lock
index 20cb53a..d996eee 100644
--- a/c/flake.lock
+++ b/c/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1758701979,
-        "narHash": "sha256-c7DUti3XM1aga8oVgaPnrVmEeCFtN9PaBxyNuqx8jPc=",
+        "lastModified": 1761349956,
+        "narHash": "sha256-tH3wHnOJms+U4k/rK2Nn1RfBrhffX92jLP/2VndSn0w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e2642aa7d5a15eae586932a56f4294934f959c14",
+        "rev": "02f2cb8e0feb4596d20cc52fda73ccee960e3538",
         "type": "github"
       },
       "original": {
diff --git a/java/.envrc b/java/.envrc
new file mode 100644
index 0000000..e69de29
diff --git a/java/flake.lock b/java/flake.lock
index 7b4976e..b799c7b 100644
--- a/java/flake.lock
+++ b/java/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1760965567,
-        "narHash": "sha256-0JDOal5P7xzzAibvD0yTE3ptyvoVOAL0rcELmDdtSKg=",
+        "lastModified": 1761440988,
+        "narHash": "sha256-2qsow3cQIgZB2g8Cy8cW+L9eXDHP6a1PsvOschk5y+E=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "cb82756ecc37fa623f8cf3e88854f9bf7f64af93",
+        "rev": "de69d2ba6c70e747320df9c096523b623d3a4c35",
         "type": "github"
       },
       "original": {
diff --git a/java/flake.nix b/java/flake.nix
index ede6013..480265f 100644
--- a/java/flake.nix
+++ b/java/flake.nix
@@ -19,7 +19,7 @@
         gradle
 
         # You might want to use your own IDE.
-        # (jetbrains.plugins.addPlugins jetbrains.idea-ultimate [ "github-copilot" ])
+        (jetbrains.plugins.addPlugins jetbrains.idea-ultimate [ "github-copilot" ])
       ];
     };
   });
diff --git a/webdev/flake.lock b/webdev/flake.lock
index 5e3aad8..959dad2 100644
--- a/webdev/flake.lock
+++ b/webdev/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1735268880,
-        "narHash": "sha256-7QEFnKkzD13SPxs+UFR5bUFN2fRw+GlL0am72ZjNre4=",
+        "lastModified": 1760596604,
+        "narHash": "sha256-J/i5K6AAz/y5dBePHQOuzC7MbhyTOKsd/GLezSbEFiM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "7cc0bff31a3a705d3ac4fdceb030a17239412210",
+        "rev": "3cbe716e2346710d6e1f7c559363d14e11c32a43",
         "type": "github"
       },
       "original": {