diff --git a/mcu/flake.nix b/mcu/flake.nix
deleted file mode 100644
index 8c081b1..0000000
--- a/mcu/flake.nix
+++ /dev/null
@@ -1,58 +0,0 @@
-{
-  inputs = {
-    flake-parts.url = "github:hercules-ci/flake-parts";
-    devshell.url = "github:numtide/devshell";
-    devshell.inputs.nixpkgs.follows = "nixpkgs";
-  };
-
-  outputs = inputs@{ nixpkgs, flake-parts, devshell, ... }:
-    flake-parts.lib.mkFlake { inherit inputs; } {
-      imports = [
-        inputs.flake-parts.flakeModules.easyOverlay
-        devshell.flakeModule
-      ];
-      systems = [ "x86_64-linux" ];
-      perSystem = { inputs', system, pkgs, config, ... }:
-      let
-      in
-      {
-        _module.args.pkgs = import nixpkgs {
-          inherit system;
-          overlays = [
-            devshell.overlays.default
-          ];
-        };
-
-        overlayAttrs = {
-          # inherit (config.packages) quicfs;
-        };
-        packages = rec {
-          # quicfs = (rustPkgs.workspace.quicfs { }).bin;
-          # default = quicfs;
-        };
-        devshells.default = {
-          packagesFrom = [
-            # (rustPkgs.workspaceShell { })
-          ];
-          packages = with pkgs; [
-            gnumake
-            cmake
-            # gcc-arm-embedded-13
-            # coreboot-toolchain.arm
-            python3
-            picotool
-            openocd
-          ];
-
-          env = [
-            { name = "PICO_SDK_PATH"; value = "${pkgs.pico-sdk}/lib/pico-sdk"; }
-            # { name = "CC"; value = "${pkgs.coreboot-toolchain.arm}/bin/arm-none-eabi-gcc"; }
-            # { name = "CXX"; value = "${pkgs.coreboot-toolchain.arm}/bin/arm-none-eabi-g++"; }
-            { name = "PICO_TOOLCHAIN_PATH"; value = "/tmp/arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-eabi"; }
-            # { name = "CC"; value = "/tmp/arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-gcc"; }
-            # { name = "CXX"; value = "/tmp/arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-g++"; }
-          ];
-        };
-      };
-    };
-}