diff --git a/docs/conf.py b/docs/conf.py
index 4cdb4a7a..1e6c6920 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -321,15 +321,7 @@ def print_once(message: str) -> None:
     "report/006*",
     "report/008*",
     "report/009*",
-    "report/010*",
-    "report/011*",
-    "report/012*",
-    "report/013*",
-    "report/014*",
-    "report/015*",
-    "report/016*",
-    "report/017*",
-    "report/018*",
+    "report/01*",
     "report/020*",
     "report/021*",
     "report/022*",
diff --git a/docs/develop.md b/docs/develop.md
index c91e2289..8ed54814 100644
--- a/docs/develop.md
+++ b/docs/develop.md
@@ -687,6 +687,26 @@ Pkg.instantiate()
 See {doc}`/report/019` for an example.
 :::
 
+Additionally, you can install a [Language Server](https://jupyterlab-lsp.readthedocs.io/en/latest/Language%20Servers.html) for Julia in Jupyter Lab. To do so, run:
+
+::::{tab-set}
+:::{tab-item} Shell
+
+```shell
+julia -e 'import Pkg; Pkg.add("LanguageServer")'
+```
+
+:::
+:::{tab-item} Julia
+
+```julia
+using Pkg
+Pkg.add("LanguageServer")
+```
+
+:::
+::::
+
 ## Collaboration
 
 The source code of all ComPWA repositories is maintained with [Git](https://git-scm.com)
@@ -892,7 +912,7 @@ especially the case for [VSCode](#visual-studio-code).
 
 We are open to other code editors as well. An example would be maintaining a
 [local vimrc](https://github.com/embear/vim-localvimrc) for users who prefer
-[VIM](https://www.vim.org). Other IDEs we'd like to support are
+[VIM](<https://en.wikipedia.org/wiki/Vim_(text_editor)>). Other IDEs we'd like to support are
 [PyCharm](https://www.jetbrains.com/pycharm), [Atom](https://atom.io),
 [IntelliJ with Python](https://www.jetbrains.com/help/idea/plugin-overview.html#b370507b).
 So we'll gladly integrate your editor settings where possible as you
diff --git a/docs/report/019.ipynb b/docs/report/019.ipynb
index 8d6a5995..78bf2f20 100644
--- a/docs/report/019.ipynb
+++ b/docs/report/019.ipynb
@@ -62,8 +62,20 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "tags": [
+     "keep_output"
+    ]
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Hello world!\n"
+     ]
+    }
+   ],
    "source": [
     "println(\"Hello world!\")"
    ]
@@ -78,8 +90,60 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {},
-   "outputs": [],
+   "metadata": {
+    "tags": [
+     "keep_output"
+    ]
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "                                                                                \n",
+      "                                                                                \n",
+      "                                                                                \n",
+      "                                                           **                   \n",
+      "                                                         ******                 \n",
+      "                                                       ********                 \n",
+      "                                                         ******                 \n",
+      "                                                      ******** **   *           \n",
+      "                                              ***   *****************           \n",
+      "                                              ************************  ***     \n",
+      "                                              ****************************      \n",
+      "                                           ******************************       \n",
+      "                                            ******************************      \n",
+      "                                         ************************************   \n",
+      "                                *         **********************************    \n",
+      "                           ** ***** *     **********************************    \n",
+      "                           ***********   ************************************   \n",
+      "                         ************** ************************************    \n",
+      "                         ***************************************************    \n",
+      "                     *****************************************************      \n",
+      " ***********************************************************************        \n",
+      "                     *****************************************************      \n",
+      "                         ***************************************************    \n",
+      "                         ************** ************************************    \n",
+      "                           ***********   ************************************   \n",
+      "                           ** ***** *     **********************************    \n",
+      "                                *         **********************************    \n",
+      "                                         ************************************   \n",
+      "                                            ******************************      \n",
+      "                                           ******************************       \n",
+      "                                              ****************************      \n",
+      "                                              ************************  ***     \n",
+      "                                              ***   *****************           \n",
+      "                                                      ******** **   *           \n",
+      "                                                         ******                 \n",
+      "                                                       ********                 \n",
+      "                                                         ******                 \n",
+      "                                                           **                   \n",
+      "                                                                                \n",
+      "                                                                                \n",
+      "                                                                                \n"
+     ]
+    }
+   ],
    "source": [
     "function mandelbrot(a)\n",
     "    z = 0\n",
@@ -107,7 +171,11 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {},
+   "metadata": {
+    "tags": [
+     "remove-output"
+    ]
+   },
    "outputs": [],
    "source": [
     "using Pkg\n",
@@ -118,7 +186,11 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {},
+   "metadata": {
+    "tags": [
+     "remove-output"
+    ]
+   },
    "outputs": [],
    "source": [
     "using Images\n",
@@ -161,11 +233,18 @@
     " \n",
     "mandelbrot()"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "![](https://github.com/ComPWA/compwa-org/assets/29308176/f8e604b9-b37c-4b5a-8114-91627da93d37)"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Julia 1.9.2",
+   "display_name": "Julia 1.9.3",
    "language": "julia",
    "name": "julia-1.9"
   },
@@ -173,7 +252,7 @@
    "file_extension": ".jl",
    "mimetype": "application/julia",
    "name": "julia",
-   "version": "1.9.2"
+   "version": "1.9.3"
   }
  },
  "nbformat": 4,
diff --git a/docs/reports.md b/docs/reports.md
index fbe61976..7cc324c9 100644
--- a/docs/reports.md
+++ b/docs/reports.md
@@ -17,3 +17,8 @@ well.
 :hidden:
 report/*
 ```
+
+````{dropdown} Execution times
+```{nb-exec-table}
+```
+````