update ubuntu install instructions

Author: arch

docs/app/docs/user-guide/build.md

@@ -18,20 +18,33 @@ This create the Windows executable in `./dist`.
 
 Finally you can remove the build environment with `conda env remove -n build`
 
-## Ubuntu
+## Ubuntu 20.04 LTS
 
 The OpenCV Package in Ubuntu use the GTK Backend for the preview window. This will cause freezes of the UI, because i use Qt threads in my code. The Arch Linux OpenCV library was compiled with QT (see `python3 -c "import cv2; print(cv2.getBuildInformation())"` output) so no problem here. To use the Application on Ubuntu you have to compile `OpenCV + OpenCV contrib` with `-D WITH_QT=ON` flag from source. Or simply use [miniconda](https://docs.conda.io/en/latest/miniconda.html). They include OpenCV compiled with Qt support. After you have setup miniconda simply type the following commands to use Python-Funscript-Editor on Ubuntu:
 
 ```bash
-sudo apt install -y make git gcc g++ libmpv-dev
+sudo apt install -y make git gcc g++ libmpv-dev libatlas-base-dev
 sudo add-apt-repository ppa:savoury1/ffmpeg4
 sudo apt install -y ffmpeg
 git clone https://github.com/michael-mueller-git/Python-Funscript-Editor.git
 cd Python-Funscript-Editor
 conda env create -f environment_ubuntu.yaml
-conda activate funscript-editor
-make docs
-python3 main.py
 ```
 
 **NOTE:** The ffmpeg in the Ubuntu 20.04 LTS ppa package is too old, which means that the package does not contain the `v360` filter for VR videos. Therefore we install ffmpeg from savoury1 ppa.
+
+Now you can run the program direct from source code with:
+
+```bash
+conda activate funscript-editor
+python3 funscript-editor.py
+```
+
+Or you can build an executable from current code with:
+
+```bash
+conda activate funscript-editor
+./build.sh
+```
+
+This create the Ubuntu executable in `./dist`.

environment_ubuntu.yaml

@@ -146,6 +146,7 @@ dependencies:
   - zlib=1.2.11=h7b6447c_3
   - zstd=1.4.9=haebb681_0
   - pip:
+    - altgraph==0.17
     - click==8.0.1
     - coloredlogs==15.0.1
     - cycler==0.10.0
@@ -159,6 +160,8 @@ dependencies:
     - matplotlib==3.4.2
     - mergedeep==1.3.4
     - mkdocs==1.2.1
+    - pyinstaller==4.3
+    - pyinstaller-hooks-contrib==2021.2
     - pynput==1.7.3
     - python-dateutil==2.8.1
     - python-mpv==0.5.2