diff --git a/README.md b/README.md
index e16092fcda8f6eae9cf5b3a39dced79fe92a584c..d518e875a5566ab476d09bb92332790dc339f8cf 100644
--- a/README.md
+++ b/README.md
@@ -150,34 +150,3 @@ Now, one should find a new kernel related to the current Julia version, named `j
 If you are facing issues, check out
 the [great troubleshooting section](https://carstenbauer.github.io/WorkshopWizard.jl/dev/troubleshooting/)
 from the WorkshopWizard package by Carsten Bauer (which is being used by `install.jl`).
-
-## For developers: setting up `pre-commit`
-
-[`pre-commit`](https://pre-commit.com/) is a framework that helps to manage and maintain pre-commit hooks to ensure that your code adheres to a consistent style, prevents errors, and adheres to other quality assurance checks.
-
-1. **Install `pre-commit`:**
-   To ensure smooth development, install `pre-commit` using pip by running the following command:
-
-   ```bash
-   pip install pre-commit
-   ```
-
-   For more information and installation options, visit the [`pre-commit`](https://pre-commit.com/) website.
-
-2. **Navigate to the project directory:**
-    Change into the project directory, i.e., `julia-seminar` by running:
-
-    ```bash
-    cd julia-seminar
-    ```
-
-3. **Install hooks:**
-    Install the git hooks by executing:
-
-    ```bash
-    pre-commit install
-    ```
-
-    This command installs the pre-commit script alongside existing git hooks.
-
-Once the pre-commit hook is installed, it will automatically check your code for any issues before each commit. If the checks do not pass, you will be prompted to fix them before proceeding.
diff --git a/src/README.md b/src/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..a3c216df53f849d9272b5752f31ae914352b9c0f
--- /dev/null
+++ b/src/README.md
@@ -0,0 +1,42 @@
+# For developers
+
+## Setting up `pre-commit`
+
+[`pre-commit`](https://pre-commit.com/) is a framework that helps to manage and maintain pre-commit hooks to ensure that your code adheres to a consistent style, prevents errors, and adheres to other quality assurance checks.
+
+1. **Install `pre-commit`:**
+   To ensure smooth development, install `pre-commit` using pip by running the following command:
+
+   ```bash
+   pip install pre-commit
+   ```
+
+   For more information and installation options, visit the [`pre-commit`](https://pre-commit.com/) website.
+
+2. **Navigate to the project directory:**
+    Change into the project directory, i.e., `julia-seminar` by running:
+
+    ```bash
+    cd julia-seminar
+    ```
+
+3. **Install hooks:**
+    Install the git hooks by executing:
+
+    ```bash
+    pre-commit install
+    ```
+
+    This command installs the pre-commit script alongside existing git hooks.
+
+Once the pre-commit hook is installed, it will automatically check your code for any issues before each commit. If the checks do not pass, you will be prompted to fix them before proceeding.
+
+## Localizing the notebooks
+
+1. Make sure the bilingual version of the notebook is in the folder `src/`. This is for clarity reasons.
+
+2. Run `./localize.py bilingual_notebook.ipynb`. The script will ask for your help whenever it is unclear.
+You should help it to set the language of the cell to one among `en`, `de` and `eq`.
+The kind `eq` is for everything that is not a spoken language (figures, schemes, equations and similar).
+
+3. You will get two versions in the `src/` folder. Move them to the root directory, add them to git and commit.