NvChad - Nerd Fonts - new installation method

docs/books/nvchad/nerd_fonts.md

@@ -25,28 +25,61 @@ Fonts are available for download at:
 https://www.nerdfonts.com/font-downloads
 ```
 
-## :material-monitor-arrow-down-variant: Installation
+### :material-monitor-arrow-down-variant: Installation procedure
 
-The procedure for installing fonts on Rocky Linux is to save the fonts you want to add somewhere, and then install them with the `fc-cache` command. This procedure is not a true installation so much as a registration of the new fonts in the system.
+The installation of Nerd Fonts in Rocky Linux is done entirely from the command line thanks to the implementation of the procedure provided by the project repository [ryanoasis/nerd-fonts](https://github.com/ryanoasis/nerd-fonts), the procedure uses *git* to retrieve the required fonts and *fc-cache* for their configuration.
 
-!!! warning "Creation of compressed packages"
+!!! Note
 
-    The procedure described below is not a standard procedure as each developer has packaged fonts using a custom scheme. So once downloaded and extracted, the contents must be checked to choose the procedure for copying the fonts.
+    This method can be used on all *linux* distributions that use [fontconfig](https://www.freedesktop.org/wiki/Software/fontconfig/) for system font management.
 
-For this guide we will use the `Sauce Code Pro Nerd` font.
+To begin, retrieve the necessary files from the project repository:
 
-Download the package with:
+```bash
+git clone --filter=blob:none --sparse git@github.com:ryanoasis/nerd-fonts
+```
+
+This command downloads only the necessary files omitting the fonts contained in *patched-fonts* so as not to weigh down the local repository with fonts that later will not be used, thus allowing for selective installation.  
+This guide will use the [IBM Plex Mono](https://github.com/ryanoasis/nerd-fonts/tree/master/patched-fonts/IBMPlexMono) font, which offers a clean and slightly typographic display, features that make it particularly suitable for writing Markdown documentation.  
+For an overview, with preview, of available fonts you can visit the [dedicated site](https://www.programmingfonts.org/#plex-mono).
+
+Go to the newly created folder and then download the font set with the commands:
 
 ```bash
-https://github.com/ryanoasis/nerd-fonts/releases/download/v2.3.3/SourceCodePro.zip
+cd ~/nerd-fonts/
+git sparse-checkout add patched-fonts/IBMPlexMono
 ```
 
-Next, unzip the contents of the folder and copy the fonts to `~/.local/share/fonts/` with:
+The command will download the fonts to the *patched-fonts* folder and once finished you can install them with the ==install.sh== script provided, type:
 
 ```bash
-mkdir ~/.local/share/fonts
-unzip SourceCodePro.zip -d ~/.local/share/fonts/
-fc-cache ~/.local/share/fonts
+./install.sh IBMPlexMono
+```
+
+!!! Note "Reserved Name"
+
+    The font during installation is renamed to *BlexMono* to comply with the SIL Open Font License (OFL) and in particular the [reserved name mechanism](http://scripts.sil.org/cms/scripts/page.php?item_id=OFL_web_fonts_and_RFNs#14cbfd4a).
+
+The *install.sh* script copies the fonts to the user folder `~/.local/share/fonts/` and invokes the *fc-cache* program to register them on the system. Once finished the fonts will be available for the terminal emulator, in particular we will find the following fonts installed:
+
+```text title="~/.local/share/fonts/"
+NerdFonts/
+├── BlexMonoNerdFont-BoldItalic.ttf
+├── BlexMonoNerdFont-Bold.ttf
+├── BlexMonoNerdFont-ExtraLightItalic.ttf
+├── BlexMonoNerdFont-ExtraLight.ttf
+├── BlexMonoNerdFont-Italic.ttf
+├── BlexMonoNerdFont-LightItalic.ttf
+├── BlexMonoNerdFont-Light.ttf
+├── BlexMonoNerdFont-MediumItalic.ttf
+├── BlexMonoNerdFont-Medium.ttf
+├── BlexMonoNerdFont-Regular.ttf
+├── BlexMonoNerdFont-SemiBoldItalic.ttf
+├── BlexMonoNerdFont-SemiBold.ttf
+├── BlexMonoNerdFont-TextItalic.ttf
+├── BlexMonoNerdFont-Text.ttf
+├── BlexMonoNerdFont-ThinItalic.ttf
+├── BlexMonoNerdFont-Thin.ttf
 ```
 
 ## :material-file-cog-outline: Configuration