diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..1d953f4
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use nix
diff --git a/.gitignore b/.gitignore
index 44cc532..e023299 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .mozilla
 **/*.tmp.sops.yaml
 result
+.direnv
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 204d9a9..6e5d382 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -2,11 +2,6 @@
 fail_fast: false
 
 repos:
-  - repo: https://github.com/kamadorueda/alejandra
-    rev: 3.0.0
-    hooks:
-      - id: alejandra-system
-
   - repo: https://github.com/adrienverge/yamllint
     rev: v1.32.0
     hooks:
diff --git a/shell.nix b/shell.nix
index 459fe9c..0677706 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,26 +1,18 @@
-# Shell for bootstrapping flake-enabled nix and other tooling
-{
-  pkgs ?
-  # If pkgs is not defined, instanciate nixpkgs from locked commit
-  let
-    lock =
-      (builtins.fromJSON (builtins.readFile ./flake.lock)).nodes.nixpkgs.locked;
+# Shell for bootstrapping flake-enabled nix and home-manager
+{ pkgs ? let
+    # If pkgs is not defined, instantiate nixpkgs from locked commit
+    lock = (builtins.fromJSON (builtins.readFile ./flake.lock)).nodes.nixpkgs.locked;
     nixpkgs = fetchTarball {
       url = "https://github.com/nixos/nixpkgs/archive/${lock.rev}.tar.gz";
       sha256 = lock.narHash;
     };
+    system = builtins.currentSystem;
+    overlays = [ ]; # Explicit blank overlay to avoid interference
   in
-    import nixpkgs {overlays = [];},
-  ...
-}:
-pkgs.mkShell {
-  NIX_CONFIG = "extra-experimental-features = nix-command flakes repl-flake";
-  nativeBuildInputs = with pkgs; [
-    nixpkgs-fmt
-    nil
-    sops
-    pre-commit
-    go-task
-    alejandra
-  ];
+  import nixpkgs { inherit system overlays; }
+, ...
+}: pkgs.mkShell {
+  # Enable experimental features without having to specify the argument
+  NIX_CONFIG = "experimental-features = nix-command flakes";
+  nativeBuildInputs = with pkgs; [ nix home-manager git nil nixpkgs-fmt go-task sops ];
 }