diff --git a/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa b/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa
index 36a461e..31c3550 120000
--- a/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa
+++ b/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa
@@ -1 +1 @@
-/nix/store/pmrs06lr66isa51v3jygxh14hnj9fnj0-qmk-default-env
\ No newline at end of file
+/nix/store/gvc2n691331mpg6zx9g63b9xjf04dbmx-rust-default-env
\ No newline at end of file
diff --git a/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa.rc b/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa.rc
index 49274b2..6a4d467 100644
--- a/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa.rc
+++ b/.direnv/flake-profile-a5d5b61aa8a61b7d9d765e1daf971a9a578f1cfa.rc
@@ -35,7 +35,7 @@ NIX_CC='/nix/store/vr15iyyykg9zai6fpgvhcgyw7gckl78w-gcc-wrapper-14.3.0'
 export NIX_CC
 NIX_CC_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu='1'
 export NIX_CC_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu
-NIX_CFLAGS_COMPILE=' -frandom-seed=pmrs06lr66'
+NIX_CFLAGS_COMPILE=' -frandom-seed=gvc2n69133'
 export NIX_CFLAGS_COMPILE
 NIX_ENFORCE_NO_NATIVE='1'
 export NIX_ENFORCE_NO_NATIVE
@@ -132,7 +132,7 @@ declare -a fixupOutputHooks=('if [ -z "${dontPatchELF-}" ]; then patchELF "$pref
 initialPath='/nix/store/imad8dvhp77h0pjbckp6wvmnyhp8dpgg-coreutils-9.8 /nix/store/av4xw9f56xlx5pgv862wabfif6m1yc0a-findutils-4.10.0 /nix/store/20axvl7mgj15m23jgmnq97hx37fgz7bk-diffutils-3.12 /nix/store/drc7kang929jaza6cy9zdx10s4gw1z5p-gnused-4.9 /nix/store/x3zjxxz8m4ki88axp0gn8q8m6bldybba-gnugrep-3.12 /nix/store/y2wdhdcrffp9hnkzk06d178hq3g98jay-gawk-5.3.2 /nix/store/yi3c5karhx764ham5rfwk7iynr8mjf6q-gnutar-1.35 /nix/store/d471xb7sfbah076s8rx02i68zpxc2r5n-gzip-1.14 /nix/store/qm9rxn2sc1vrz91i443rr6f0vxm0zd82-bzip2-1.0.8-bin /nix/store/3fmzbq9y4m9nk235il7scmvwn8j9zy3p-gnumake-4.4.1 /nix/store/rlq03x4cwf8zn73hxaxnx0zn5q9kifls-bash-5.3p3 /nix/store/qrwznp1ikdf0qw05wia2haiwi32ik5n0-patch-2.8 /nix/store/v0rfdwhg6w6i0yb6dbry4srk6pnj3xp0-xz-5.8.1-bin /nix/store/paj6a1lpzp57hz1djm5bs86b7ci221r0-file-5.45'
 mesonFlags=''
 export mesonFlags
-name='qmk-default-env'
+name='rust-default-env'
 export name
 nativeBuildInputs='/nix/store/4sj19dch0zhnhhdsbrz9pxz55bc2xhb9-rustc-wrapper-1.91.1 /nix/store/742kq790y4nd92s4l4arg7ij8h7is5ar-cargo-1.91.1 /nix/store/5y00kqp8qlmjwvm5h607n6jnmqr75dnk-clippy-1.91.1'
 export nativeBuildInputs
diff --git a/flake.nix b/flake.nix
index 23c8da9..3034abf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,5 +1,5 @@
 {
-    description = "Tutorials from the Rust by Example pages";
+    description = "Advent of Code 2025";
 
     inputs.nixpkgs.url = "nixpkgs";
 
@@ -9,7 +9,7 @@
             pkgs = import nixpkgs { inherit system; };
         in {
             devShells.${system}.default = pkgs.mkShell {
-                name = "qmk-default";
+                name = "rust-default";
                 RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
                 packages = with pkgs; [
                     rustc
@@ -18,4 +18,4 @@
                 ];
             };
         };
-}
\ No newline at end of file
+}