diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..8f390c3
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use_flake
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 5dcc104..91555ba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -444,3 +444,4 @@ obj/
 
 # End of https://www.toptal.com/developers/gitignore/api/platformio,c,cmake,c++,intellij,android,androidstudio,clion+all,java
 
+.direnv
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..c9594a6
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "cmake.sourceDirectory": "/home/clara/repositorys/climate-go/firmware"
+}
\ No newline at end of file
diff --git a/firmware/.gitignore b/firmware/.gitignore
new file mode 100644
index 0000000..89cc49c
--- /dev/null
+++ b/firmware/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
diff --git a/firmware/.vscode/extensions.json b/firmware/.vscode/extensions.json
new file mode 100644
index 0000000..080e70d
--- /dev/null
+++ b/firmware/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..1796f3c
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1728241625,
+        "narHash": "sha256-yumd4fBc/hi8a9QgA9IT8vlQuLZ2oqhkJXHPKxH/tRw=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c31898adf5a8ed202ce5bea9f347b1c6871f32d1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..8d9655b
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,25 @@
+{
+  description = "A Nix-flake-based PlatformIO development environment";
+
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+  outputs = { self, nixpkgs }:
+    let
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
+        pkgs = import nixpkgs { inherit system; };
+      });
+    in
+    {
+      devShells = forEachSupportedSystem ({ pkgs }: {
+        default = pkgs.mkShell {
+          packages = with pkgs; [
+            platformio-core
+            openocd
+            python3
+            platformio
+          ];
+        };
+      });
+    };
+}