diff --git a/projects/khora/.envrc b/projects/khora/.envrc
new file mode 100644
index 00000000..e8ff23c0
--- /dev/null
+++ b/projects/khora/.envrc
@@ -0,0 +1 @@
+use flake .#khora
diff --git a/projects/khora/README.md b/projects/khora/README.md
index 51d8c3b5..ec23c5e0 100644
--- a/projects/khora/README.md
+++ b/projects/khora/README.md
@@ -28,6 +28,13 @@ nix build .#khora
 nix run .#khora
 ```
 
+For a faster development loop, enter `projects/khora` and let direnv load its
+Khora development shell, then run the source tree directly:
+
+```sh
+python -m khora
+```
+
 Khora reads the same XDG configuration and vdirs as khal. It does not configure
 accounts or perform network synchronization.
 
diff --git a/projects/khora/default.nix b/projects/khora/default.nix
index 3cee921b..195385ef 100644
--- a/projects/khora/default.nix
+++ b/projects/khora/default.nix
@@ -3,6 +3,7 @@
   python3Packages,
   khal,
   gobject-introspection,
+  gsettings-desktop-schemas,
   gtk4,
   libadwaita,
   wrapGAppsHook4,
@@ -16,8 +17,9 @@ python3Packages.buildPythonApplication {
     root = ./.;
     fileset = lib.fileset.unions [
       ./data
+      ./README.md
       ./pyproject.toml
-      ./src
+      ./khora
       ./tests
     ];
   };
@@ -38,6 +40,10 @@ python3Packages.buildPythonApplication {
   ];
   nativeCheckInputs = [python3Packages.pytestCheckHook];
 
+  shellHook = ''
+    export XDG_DATA_DIRS="${gsettings-desktop-schemas}/share/gsettings-schemas/${gsettings-desktop-schemas.name}:${gtk4}/share/gsettings-schemas/${gtk4.name}:$XDG_DATA_DIRS"
+  '';
+
   postInstall = ''
     install -Dm644 data/rs.m7.Khora.desktop \
       $out/share/applications/rs.m7.Khora.desktop
diff --git a/projects/khora/src/khora/__init__.py b/projects/khora/khora/__init__.py
similarity index 100%
rename from projects/khora/src/khora/__init__.py
rename to projects/khora/khora/__init__.py
diff --git a/projects/khora/src/khora/__main__.py b/projects/khora/khora/__main__.py
similarity index 100%
rename from projects/khora/src/khora/__main__.py
rename to projects/khora/khora/__main__.py
diff --git a/projects/khora/src/khora/application.py b/projects/khora/khora/application.py
similarity index 100%
rename from projects/khora/src/khora/application.py
rename to projects/khora/khora/application.py
diff --git a/projects/khora/src/khora/colors.py b/projects/khora/khora/colors.py
similarity index 100%
rename from projects/khora/src/khora/colors.py
rename to projects/khora/khora/colors.py
diff --git a/projects/khora/src/khora/khal_adapter.py b/projects/khora/khora/khal_adapter.py
similarity index 100%
rename from projects/khora/src/khora/khal_adapter.py
rename to projects/khora/khora/khal_adapter.py
diff --git a/projects/khora/src/khora/model.py b/projects/khora/khora/model.py
similarity index 100%
rename from projects/khora/src/khora/model.py
rename to projects/khora/khora/model.py
diff --git a/projects/khora/src/khora/window.py b/projects/khora/khora/window.py
similarity index 100%
rename from projects/khora/src/khora/window.py
rename to projects/khora/khora/window.py
diff --git a/projects/khora/pyproject.toml b/projects/khora/pyproject.toml
index 887f2684..456e23bd 100644
--- a/projects/khora/pyproject.toml
+++ b/projects/khora/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
 khora = "khora.application:main"
 
 [tool.setuptools.packages.find]
-where = ["src"]
+include = ["khora*"]
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]