diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
index 65812a0..9080c12 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 # Miscellaneous
 *.class
 *.lock
+!flake.lock
 *.log
 *.pyc
 *.swp
@@ -96,3 +97,5 @@ app.*.map.json
 
 # VS Code
 .vscode/settings.json
+
+.direnv
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..95f5ad6
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,59 @@
+{
+  "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
new file mode 100644
index 0000000..3951a16
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,50 @@
+{
+  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
+          ];
+        };
+      });
+}