websrv regression

common/utils/websrv/DOC/websrvuse.md

@@ -38,6 +38,20 @@ $ sudo dnf install -y jansson-devel npm curl wget
 
 ulfius has to be installed as explained [here](https://github.com/babelouest/ulfius/blob/master/INSTALL.md#pre-compiled-packages).
 
+## Install from source if needed
+
+```bash
+sudo dnf install -y jansson-devel npm curl wget libmicrohttpd-devel curl curlpp-devel systemd-devel
+git clone https://github.com/babelouest/orcania.git
+cd orcania; mkdir build; cd build; cmake ..; sudo make install
+cd
+git clone https://github.com/babelouest/yder.git
+cd yder ; mkdir build; cd build; cmake ..; sudo make install
+git clone https://github.com/babelouest/ulfius.git
+cd ulfius
+mkdir build; cd build; cmake ..; sudo make install
+```
+
 ## Additional dependencies for the frontend
 
 Currently the web server frontend can run with nodejs 18, you can check the
@@ -54,6 +68,16 @@ beyond this doc.
 
 For example, to install a specific nodeJS version, you can run the below
 command, with the typical output printed below for your convenience:
+
+install method by nvm
+```bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash
+source ~/.bashrc
+nvm install 18
+nvm use 18
+```
+
+install by apt-get
 ```bash
 $ curl -s https://deb.nodesource.com/setup_18.x | sudo bash