diff --git a/flake.lock b/flake.lock
index b01f9fb..63b373e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -6,16 +6,17 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1758247379,
-        "narHash": "sha256-u7LOGpRhY1MmelsdLF5BlZRtuwYD5GBfQzVOdNojhz8=",
+        "lastModified": 1746690306,
+        "narHash": "sha256-bMp4BCrTOX7VDLVU8TzMSQj1hviBrARz9iiqNq6Vbnk=",
         "owner": "mirrexagon",
         "repo": "nixpkgs-esp-dev",
-        "rev": "f087ab9ecf5177d5bcf773b0c7467fa91b33dae7",
+        "rev": "6c34f2436015eb6c107970d9b88f3d5d4600c6fa",
         "type": "github"
       },
       "original": {
         "owner": "mirrexagon",
         "repo": "nixpkgs-esp-dev",
+        "rev": "6c34f2436015eb6c107970d9b88f3d5d4600c6fa",
         "type": "github"
       }
     },
@@ -39,18 +40,17 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1759735786,
-        "narHash": "sha256-a0+h02lyP2KwSNrZz4wLJTu9ikujNsTWIC874Bv7IJ0=",
+        "lastModified": 1729501122,
+        "narHash": "sha256-tScdcYQ37kMqlyqb5yizNDTKXZASLB4zHitlHwOg+/o=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "20c4598c84a671783f741e02bf05cbfaf4907cff",
+        "rev": "56c7c4a3f5fdbef5bf81c7d9c28fbb45dc626611",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixos-25.05",
-        "repo": "nixpkgs",
-        "type": "github"
+        "id": "nixpkgs",
+        "ref": "nixpkgs-unstable",
+        "type": "indirect"
       }
     },
     "nixpkgs_2": {
@@ -92,16 +92,16 @@
     },
     "systems_2": {
       "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "lastModified": 1689347949,
+        "narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
         "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "repo": "default-linux",
+        "rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
         "type": "github"
       },
       "original": {
         "owner": "nix-systems",
-        "repo": "default",
+        "repo": "default-linux",
         "type": "github"
       }
     }
diff --git a/flake.nix b/flake.nix
index 8f2ba5a..3fd24e2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,8 +1,8 @@
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs";
-    systems.url = "github:nix-systems/default";
-    esp-idf.url = "github:mirrexagon/nixpkgs-esp-dev";
+    systems.url = "github:nix-systems/default-linux";
+    esp-idf.url = "github:mirrexagon/nixpkgs-esp-dev?rev=6c34f2436015eb6c107970d9b88f3d5d4600c6fa";
   };
 
   outputs = { nixpkgs, systems, esp-idf, ... }: let
@@ -14,17 +14,17 @@
       });
   in {
     devShells = eachSystem(system: let
-      inherit (esp-idf.packages.${system}) esp-idf-full;
+      inherit (esp-idf.packages.${system}) esp-idf-esp32;
       pkgs = pkgsFor.${system};
     in {
       default = pkgs.mkShell {
         inputsFrom = [
           # for building and flashing the sketch
-          esp-idf-full
+          esp-idf-esp32
         ];
 
         packages = [
-          esp-idf-full
+          esp-idf-esp32
 
           # for the `fontconvert.py` script of epdiy
           (pkgs.python3.withPackages(ps: [ps.freetype-py]))