diff --git a/.envrc b/.envrc
index 4eb27b3..bed79ab 100644
--- a/.envrc
+++ b/.envrc
@@ -1,9 +1,2 @@
 use flake
 nix profile wipe-history --profile "$(direnv_layout_dir)/flake-profile" --older-than 14d
-
-if [[ -n "${DEV_INSTALL_EDITABLE:-}" ]]; then
-  install_dir=$(mktemp -d)
-  PIP_DISABLE_PIP_VERSION_CHECK=1 pip install -e . --prefix $install_dir
-  export PATH=$install_dir/bin:$PATH
-  export PYTHONPATH=.:$PYTHONPATH
-fi
\ No newline at end of file
diff --git a/flake.lock b/flake.lock
index 6651608..a50ec1c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1732014248,
-        "narHash": "sha256-y/MEyuJ5oBWrWAic/14LaIr/u5E0wRVzyYsouYY3W6w=",
+        "lastModified": 1732837521,
+        "narHash": "sha256-jNRNr49UiuIwaarqijgdTR2qLPifxsVhlJrKzQ8XUIE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "23e89b7da85c3640bbc2173fe04f4bd114342367",
+        "rev": "970e93b9f82e2a0f3675757eb0bfc73297cc6370",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index ede3524..2eb5241 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,6 +32,16 @@
           ];
         };
 
+        editablePkg = pkg.overrideAttrs (oldAttrs: {
+          nativeBuildInputs = oldAttrs.nativeBuildInputs ++ [
+            (python3.pkgs.mkPythonEditablePackage {
+              pname = pyproject.project.name;
+              inherit (pyproject.project) scripts version;
+              root = "$PWD";
+            })
+          ];
+        });
+
       in {
         packages.default = pkg;
         devShells.default = mkShell {
@@ -47,7 +57,7 @@
             twine
             types-pyyaml
           ];
-          inputsFrom = [ pkg ];
+          inputsFrom = [ editablePkg ];
         };
       });
 }
diff --git a/pyproject.toml b/pyproject.toml
index 4dd2bd9..3c5d817 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,7 +48,6 @@ lint.ignore = [
     "INP", # implicit-namespace-packagepydocstyle
     "ISC001", # Implicitly concatenated string literals on one line
     "S101", # Use of `assert` detected
-    "PT005", # fixture with leading `_` returns a value
     "PLR2004", # magic value in comparison
     "TRY400", # use logging.exception
 ]