diff --git a/c/.envrc b/c/.envrc
new file mode 100644
index 0000000..e69de29
diff --git a/c/flake.lock b/c/flake.lock
index d57185e..20cb53a 100644
--- a/c/flake.lock
+++ b/c/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1755082269,
-        "narHash": "sha256-Ix7ALeaxv9tW4uBKWeJnaKpYZtZiX4H4Q/MhEmj4XYA=",
+        "lastModified": 1758701979,
+        "narHash": "sha256-c7DUti3XM1aga8oVgaPnrVmEeCFtN9PaBxyNuqx8jPc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d74de548348c46cf25cb1fcc4b74f38103a4590d",
+        "rev": "e2642aa7d5a15eae586932a56f4294934f959c14",
         "type": "github"
       },
       "original": {
diff --git a/c/flake.nix b/c/flake.nix
index 1c7b728..4dda845 100644
--- a/c/flake.nix
+++ b/c/flake.nix
@@ -50,8 +50,8 @@
 #        xorg.libXcursor
 
         # You might want to use your own IDE.
-        #(jetbrains.plugins.addPlugins jetbrains.clion [ "github-copilot" ])
-        #vscodium
+        (jetbrains.plugins.addPlugins jetbrains.clion [ "github-copilot" ])
+        vscodium
       ];
 
       shellHook = ''