diff --git a/.envrc b/.envrc
index 2f8e1d3..cffc922 100644
--- a/.envrc
+++ b/.envrc
@@ -1 +1 @@
-use flake --impure
+use flake . --impure
diff --git a/Justfile b/Justfile
new file mode 100644
index 0000000..6e9eddf
--- /dev/null
+++ b/Justfile
@@ -0,0 +1,30 @@
+name := "titanium"
+
+set positional-arguments
+
+default:
+  @just --list --unsorted
+
+# build rooter
+build:
+  nix build ".#rooter"
+
+# build rooter dev version (for debugging)
+build-dev:
+  nix build ".#rooterDev" --impure
+
+# build rooter phar version
+build-dev-phar:
+  nix build ".#rooterDevPhar"
+
+# update flake
+update:
+  nix flake update
+
+# format the nix files in this repo
+fmt:
+  nix fmt
+
+# clean result directory
+clean:
+  rm -rf result
\ No newline at end of file
diff --git a/flake.lock b/flake.lock
index 30508fb..d9d3f71 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1698890957,
-        "narHash": "sha256-DJ+SppjpPBoJr0Aro9TAcP3sxApCSieY6BYBCoWGUX8=",
+        "lastModified": 1698931758,
+        "narHash": "sha256-pwl9xS9JFMXXR1lUP/QOqO9hiZKukEcVUU1A0DKQwi4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c082856b850ec60cda9f0a0db2bc7bd8900d708c",
+        "rev": "b644d97bda6dae837d577e28383c10aa51e5e2d2",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 5474273..61449d3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -100,7 +100,7 @@
       packages.default = self.packages.${system}.rooter;
 
       devShells.default = pkgs.mkShell {
-        buildInputs = with pkgs; [phpDev traefik dnsmasq pv gzip packages.rooterDev];
+        buildInputs = with pkgs; [phpDev traefik dnsmasq pv gzip just packages.rooterDev];
       };
     });
 }