diff --git a/.envrc b/.envrc
index 3550a30..5bf8fc1 100644
--- a/.envrc
+++ b/.envrc
@@ -1 +1,3 @@
-use flake
+source_url "https://raw.githubusercontent.com/cachix/devenv/95f329d49a8a5289d31e0982652f7058a189bfca/direnvrc" "sha256-d+8cBpDfDBj41inrADaJt+bDWhOktwslgoP5YiGJ1v0="
+
+use devenv
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 9080c12..011e4b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -98,4 +98,14 @@ app.*.map.json
 # VS Code
 .vscode/settings.json
 
+# Devenv
+.devenv*
+devenv.local.nix
+.android/
+local.properties
+
+# direnv
 .direnv
+
+# pre-commit
+.pre-commit-config.yaml
diff --git a/.vscode/launch.json b/.vscode/launch.json
index a5afaf6..196fdad 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -13,7 +13,7 @@
       "request": "launch",
       "type": "dart",
       "flutterMode": "debug",
-      "args": ["--flavor", "main"]
+      "args": ["--flavor", "unsigend"]
     }
   ]
 }
diff --git a/devenv.nix b/devenv.nix
new file mode 100644
index 0000000..d8a7d66
--- /dev/null
+++ b/devenv.nix
@@ -0,0 +1,31 @@
+{ pkgs, lib, config, inputs, ... }:
+
+{
+  enterShell = ''
+    export CHROME_EXECUTABLE=`which chromium`
+  '';
+
+  scripts = {
+    create-emulator.exec = "avdmanager create avd --force --name android-32 --package 'system-images;android-32;google_apis_playstore;x86_64'";
+    run-app.exec = "flutter run --flavor unsigned";
+    build-apk-unsigned.exec = "flutter build apk --flavor unsigned";
+  };  
+
+  android = {
+    enable = true;
+    flutter.enable = true;
+
+    platforms.version = [ "31" "33" "34" ];
+    cmake.version = [ "3.18.1" "3.22.1" ];
+    googleTVAddOns.enable = false;
+    ndk = {
+      enable = true;
+      version = [ "23.1.7779620" "26.1.10909125" ];
+    };
+    extras = [ ];
+    emulator = {
+      enable = true;
+      version = "34.1.9";
+    };
+  };
+}
diff --git a/devenv.yaml b/devenv.yaml
new file mode 100644
index 0000000..1794a00
--- /dev/null
+++ b/devenv.yaml
@@ -0,0 +1,15 @@
+# yaml-language-server: $schema=https://devenv.sh/devenv.schema.json
+inputs:
+  nixpkgs:
+    url: github:NixOS/nixpkgs/nixpkgs-unstable
+
+# If you're using non-OSS software, you can set allowUnfree to true.
+allowUnfree: true
+
+# If you're willing to use a package that's vulnerable
+# permittedInsecurePackages:
+#  - "openssl-1.1.1w"
+
+# If you have more than one devenv you can merge them
+#imports:
+# - ./backend
diff --git a/flake.lock b/flake.lock
deleted file mode 100644
index 95f5ad6..0000000
--- a/flake.lock
+++ /dev/null
@@ -1,59 +0,0 @@
-{
-  "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1717459389,
-        "narHash": "sha256-I8/plBsua4/NZ5bKgj+z7/ThiWuud1YFwLsn1QQ5PgE=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "3b01abcc24846ae49957b30f4345bab4b3f1d14b",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
-      }
-    },
-    "root": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}
diff --git a/flake.nix b/flake.nix
deleted file mode 100644
index 3951a16..0000000
--- a/flake.nix
+++ /dev/null
@@ -1,50 +0,0 @@
-{
-  description = "Vikunja Flutter app dev environment";
-
-  inputs.flake-utils.url = "github:numtide/flake-utils";
-
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let pkgs = import nixpkgs { system = system; config.allowUnfree = true; };
-      in {
-        defaultPackage = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            # Originally copied from https://github.com/zulip/zulip-flutter/blob/d882f50bf7d917ce7e040d7ee1f66f1d803ef988/shell.nix
-              clang
-              cmake
-              ninja
-              pkg-config
-
-              gtk3  # Curiously `nix-env -i` can't handle this one adequately.
-                    # But `nix-shell` on this shell.nix does fine.
-              pcre
-              epoxy
-
-              flutter
-
-              # This group all seem not strictly necessary -- commands like
-              # `flutter run -d linux` seem to *work* fine without them, but
-              # the build does print messages about missing packages, like:
-              #   Package mount was not found in the pkg-config search path.
-              #   Perhaps you should add the directory containing `mount.pc'
-              #   to the PKG_CONFIG_PATH environment variable
-              # To add to this list on NixOS upgrades, the Nix package
-              # `nix-index` is handy: then `nix-locate mount.pc`.
-              libuuid  # for mount.pc
-              xorg.libXdmcp.dev
-              libsepol.dev
-              libthai.dev
-              libdatrie.dev
-              libxkbcommon.dev
-              dbus.dev
-              at-spi2-core.dev
-              xorg.libXtst.out
-              pcre2.dev
-
-              jdk11
-              android-studio
-              android-tools
-          ];
-        };
-      });
-}